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8/9/2019 Project Management Lvl a Prt II 2008_09_edn4
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Project Management:
ISCD: Level A Part IIBijoy S Guha,
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References
Project Management: Harvey Maylor (Pear son Education, 3 rd Edition)
Project Management for Business &Technology: John M Nicholas ( Projects: Prasanna Chandra (Tata McGraw Hill, 6 th Edition)
Project Management: SMU Publication(B0915 Edition: Fall 2008)
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Project?
Routine, repetitive &ongoing throughout;
Necessary to sustain thebusiness;
Incrementalimprovements set.
Unique, temporary &goal directed;
Create strategic
initiatives/Products;New paradigms are putin place.
Organizational Work
ProjectsOperations
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Project? (contd.)
Any non-repetitive activity;
A low-volume high variety activity;
a temporary endeavour undertaken to create a unique product or service;
Any activity with a defined start and finish;
a unique set of coordinated activities, with definite
starting and finish points undertaken to meet specific objectives within defined schedule, cost and
performance pararmeters . (BS 6079: 2000)
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Project? (contd.)
Projects come in many shapes and sizes:By number of tasks (complexity)
By time required to complete (duration)
By resources (thus money) needed
Combination of these factors
Other Characteristics:Project teams are born to die!
New paradigms become the S.O.P
Contributes to organizations learning & growth
Can (re)shape the Organization
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Project? (contd.)Projects come in many shapes and sizes:
By number of tasks (complexity)Diversity of competencies
Efforts of many people
By time required to complete (duration)Changing nature of requirements
Tracking
By resources (thus money) neededFinancial outlayRisk
Combination of these factors
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Project Typology
Complexity
Duration
Improvement Projects
CrisisSolving
Product Design
Orgn.Restruct.
Mergers & Acqzn.
R&D
New toWorld
Area of the bubblesindicate the quantity of projects.
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Project? (contd.)
Time
Perform
ance
S/State 1
Breakthrough
Improvement
Continuous
Improvement
S/State 2
Stabilization
Project for Development
& Growth
Series of miniprojects
Mega Project: Start
of Business
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Project? (contd.)For business continuity, this activity is on-goingand is referred to as the S-Curve of a Firmslife e.g. Tatas Automotive Business
S S S Engineering. &LocomotiveTrucks &
Construction.
Equipment.
Passenger cars
TATA MOTORS
TELCO
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Project Management: What is it?
Project management is the coordinating effort to fulfill the goals of theproject, headed by a Project Manager;
The Project Manager (Leader) uses knowledge, skills, tools and
methodologies to:Identify the goals, objectives, requirements and limitations of the project -Specification
Coordinate the needs (and expectations) of the project stakeholders viz.team, customer, society/ sponsor & supplier Buy-in
Plan and deliver the identified objectives & goals - Execution
Close the project when completed - Closure
Capture (for dissemination) the knowledge accrued - Continuity
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Mindset:Timeliness: how to reduce and then deliver on timeResponsiveness: to ever changing circumstancesInformation Sharing: for involvement and clarityFlexibility: adapting to the situational needStructured Planning: towards efficient resource use & priority
Ability to work with ill-defined organization & support structuresCoping with uncertainty: no two projects are exactly the sameAnalytical yet speedy: no analysis paralysis
Good communication, team-building & networking skills
Project Manager: Characteristics
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Project Management: What is it? (contd)
Project managers have to balance and integrate competing demands to implement all aspects of the project:
Project Scope : specific work to be doneProject Time : Duration with milestonesProject Cost : tracking the budgetHuman Resources : competent teamProcurement : adequate material & equipmentCommunication : progress vis-a-vis changesQuality : establishing and delivering acceptableRisk : analyzing and planning adequate response
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The required knowledge areas & Processes are:
Project Management: What is it? (contd)
CommunicnManagement
ScopeManagement
H.R.
Management
TimeManagement
Procurement Management
Risk
Management
Quality Management
Cost Management
IntegrationManagement
PROJECT MNANAGER
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RESOURCES (Money)
T I M
E S C O
P E
Principally, Project Management, like in anyfield of management, is bound by:
And Priorities always change!
Project Management: What is it? (contd)
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Project Management: Conception
Projects start after an authoritative stakeholder decides toimplement a project, involving:
Fair amount of Capital outlay A commitment of Human Resources for (extended) period of time
Irreversibility and attendant riskAnd prioritization/choice from a wide to do listPossible Projects have to be analyzed and feasibility assessed before start.Funds have to found for Feasible Projects, which includes aRisk AnalysisFinally Projects have to be implemented and,Closed !
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Project Management: Concept n (contd)Phases of a Project
Design it Do it Close/Develop itDefine it
Day to day control
How, who& When
What & why
ContinuousImprovemen
t
Time
Activity/Cum.Cost
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Project Management: Concept n (contd)Phases of a Project
Time
Man-hrs
FeasibilityPrepare Implement Close
Time
F
P
IC
FP
IC
Save
ConcurrentModel
Sequential or stage-gate Model
X X
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Project Management: Concept n (contd) Project Analysis
Market AnalysisMarket Potential/Size
Market Share
Techn. AnalysisTechnical viability
Sensible alternatives
Financial AnalysisRisk
Return
Economic AnalysisBenefits and costs
Knock-on impacts
Ecology AnalysisEnvironmental impact
Restoration/containment
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Project Management: Concept n (contd) Project Analysis - Feasibility
IdeationInitial
Screen
Reject/shelve
No Go
Investigate
Go Market Study
Tech/Ecol. Study
Fin./Eco Study OK?
Terminate
No
Project FundingPlan
Yes
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Project Management: Concepts (contd) Feasibility Financial evaluation
Three Basic Questions:Can we produce the Goods and/or Services?Can we sell them?
Can we earn a satisfactory Return on Investment made in theProject? ORDo we have a favorable Cost Benefit Ratio?
Financial appraisal gives answers to the last question,factoring:
Time value of MoneyPay back and ProfitabilityRisk analysis & mitigation
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Project Management: Concepts (contd)Time value of money
A rupee today is more valuable than the samerupee a year hence!
Inflation reduces the purchasing power
However, money invested productively yields returnsand increases the value
People prefer current consumption to future spend.
In projects, cash flows (i.e. income andspending) are at different points of time. For afair analysis, they have to be brought to thesame (current) point of time
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Project Management: Concept n (contd) Time value of money
To normalize cash flows we need to reduce themto a common base, usually the Present Value .Algebraically:
PV = Present Value;FV = Future value;C t = Cash flow at the end of the year tr = Interest rateg = growth rate in cash flows
n = number of periods over which cash flows
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Project Management: Concept n (contd) Time value of money
Formula (single sum): FVn = PV(1+r) n
(1+r) n is the Future value interest factor The process of investing money as well asreinvesting the interest earned is calledCompounding .
Depositing Rs.1000 in the bank today @10% interest will in 8 years grow to:
1000(1.10) 8 = 1000(2.144) = 2144
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Project Management: Concept n (contd) Time value of money
The Rule of 72:Investors commonly ask when will my money double? A rule of thumb says divide 72 by the interest rate
E.g. if the interest rate is 12%, the doubling period is72/12 = 6 years
Using the formula: 1000(1.12)6
= 1000(1.974) i.e.1000 becomes 1974 in 6 years.
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Project Management: Concept n (contd) Time value of money
Returns come in the future. Thus Rs.1000/-earned 3 years from now will posses less valuetoday . We need to know the present value of
future earnings .The process is simply the reverse/inverse of compounding and is called Discounting.Formula (single sum):
FV n = PV(1+r)n
thus, PV = FV n[1/(1+r) n]
The factor 1/(1+r) n is called discounting factor .
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Project Management: Concept n (contd) Time value of money
In financial analysis, more often cashflow streams are uneven i.e. not a singlesum; they vary year to year
The formula for Present Value for uneven (or even) cash flows is:
PV n = A 1/(1+r) + A 2/(1+r) 2 + . A n/(1+r) n
n = At/(1+r) t , where t=1At = Cash flow at the end of t year, n = duration of flow
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@ 12%discounting
Project Management: Concept n (contd) Time value of money
Suppose you were to start a fast-food joint for 3years; your estimates are:
Figs: Rs. lakhs Now Year 1 Year 2 Year 3
Start-up Costs 50
Running Costs 30 45 45
Revenues 40 50 60
Sale of Joint 70
NPV positive so worth pursuing
NPV = NPV yr1 + NPV yr2 + NPV yr3
= -50 + (-30 +40)/(1+0.12) 1 + (-45 +50)/(1=0.12) 2 + (-45 +60 +70)/(1+0.12) 3
= 23.415
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Project Management: The process Investment Criteria
There are many (over 30 !) criteria whichcan be broadly typed into:
Discounting Criteria, mainly:Net Present ValueBenefit Cost RatioInternal Rate of Return
Non-discounting Criteria, mainly:Payback PeriodAccounting Rate of ReturnUrgency
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Project Management: The Process (contd) Investment Criteria Non-discounting
Urgency: Simply put, projects which have higher urgency get priority.
Issue: what is the basis for urgency?
Therefore, used only in crisis situations.Pay Back: Is the length of time to recover the initialoutlay. Shorter the pay back, more attractive theproject.
Issue: does not reflect the true worth,but is a rough and ready reckoner to make quickevaluation and benchmarking, for initial assessmentand for small-value projects.
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Project Management: The Process (contd) Investment Criteria Discounting
Net Present Value: represents the sum of allthe cash flows,discounted to the presentvalue. If the sum is +ve,then the project isyielding a surplus onmoney invested. Thusviable.
E.g. given the cash flowalongside and adiscounting of 10%;
Year Cash Flow
0 -1,000,000
1 & 2 200,000
3 & 4 300,0005 350,000
Applying NPV formula:
NPV = 200000/(1.10) + 200000/(1.10) 2 + 300000/(1.10) 3 + ..-1,000,000
= Rs.5273; i.e. a surplus
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Internal Rate of Return (I.R.R): is thediscounting rate at which the net presentvalue of the project is 0. It indicates theminimum returns that the project has togenerate annually for its duration. E.g.:
Yr 0 1 2 3 4
C/F -100 30 30 40 45
The r ate which returns 100 is :
100 = 30/(1+ r ) + 30/(1+ r )2 + ..i.e. r is between 15 & 16%.
Thus accept project if the rate of return is more than the discounting rate .
Project Management: The Process (contd) Investment Criteria Discounting
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Project Management: Concept n (contd) Investment Criteria Observations
NPV is expressed in absoluteterms and does not indicatethe scale of a Project;
NPV favors longer termprojects
The IRR rule does notdifferentiate lending &borrowing; e.g.
IRR is clearer than NPV & isless sensitive to discountingratio.
NPV Invest. Ratio
X +5000 50000 10%
Y +2500 10000 25%
C/Fl.Yr 1
C/Fl.Yr 2
IRR NPV@10%
A -4000 +6000 50% 145
B +4000 -7000 75% -236
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Project Management: The Process (contd) Financial evaluation Discounting Criteria
Economic analysis: is the methodology toevaluate projects from the Societal view point,primarily Public investments.
Social cost/benefits differ from monetary measuresdue to Societal considerations and marketimperfections;
UN has formulated an process to assess this under the UNIDO Guide, in which societal and marketconsiderations have been integrated to assessdesirability of a Project. ( Please read handout onBridge Project & River Valley Project as anexample for the approach )
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Project Management: The Process (contd) Financial Evaluation- Risk
Risk analysis is one of the most slippery aspect of project evaluation there is no one unique method:
Technique 1 stand-alone risk of a projectTechnique 2 risk of a project in the context of the firmand/or the market.
Risk Analysis
Stand Alone Contextual
SSS Analyses
Break Even
Decision Tree
Corporate Risk
Market Risk
Easier tomeasure
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Project Management: The Process (contd) Risk sources of risk
The several sources of risk with respect to projectedearnings and cash-flows are:
Project-specific risk projections may be erroneous
Competitive risk affected by unanticipated actions of competition or new competition
Industry-specific risk Unforeseen technologies/ products,regulatory changes etc.
Market risk Unexpected changes in macroeconomic factors
International risk Extraordinary developments on theexchangerate and/or Political climate
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Project Management: The Process (contd) Risk measures of risk
Risk is measured from:Probability of occurrence :
the variability associated with obtaining
different results (e.g. NPV )
A measure of the risk is the range i.e.difference between the highest/lowest value i.e.900 200 = 700
NPV Prob.200600900
0.30.50.2
The weighted NPV works out to:
3E(NPV) = p i NPV i
i=1
= 0.3x200 + 0.5x600 + 0.2x900= 540
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Project Management: The Process (contd) Risk measures of risk
The higher the spread the more the variability andrisk
Standard Deviation (
) of the NPV distributionquantifies this:
= {0.3(200-540) 2+ {0.5(600-540) 2+ {0.2(900-540) 2}= 250
We can now define a coefficient of variation in whichwe relate the to expected net present value:
CV = / Expected value ; = 250/540 = 0.46
The higher the CV, the higher the risk ranking
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Project Management: The Process (contd) Risk measures of risk
the expected probability of an untoward occurrence(e.g. earthquake )
In real life, this is a geophysical phenomenon and can belinked to a region and a value assigned say 0.2
The expected impact on the project:in case of NPV, the financial impact
in case of untoward occurrence, the time & financialimpact (loss and recovery)
The product likelihood x impact definesconsequence, thus the ranking of risks.
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#1 Sensitivity:Financial statements are worked out with eachline changed for optimistic/realistic/pessimistic values one at a time, the other lines being held at realistic values.
Investigating the situation whatif a change inassumption/projection were to happenIndicates the strength of relationship between the
outcome/result and a given parameter e.g. changein profit if material-costs go up to pessimisticlevels.
Project Management: The Process (contd) Risk the SSS Analyses
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Project Management: The Process (contd) Risk the SSS Analyses
12.793/
2.05 11.497
-
6.233
x 5.264
12.9% 14.8%
12.793
-
1.103 1.219 5.854
+ +
809 925 11.690 11.573%
P&L 6.30% 7.20% -294 5.854 5.728
12.793
Sales
Purchasedmaterials
OperatingIncome
FinancialIncome
Incomebefore Tax
Operatingexpenses
Other Costs
CapitalTurnover
RONA
A 'Du-pont" style Report
Margin
Sales
Total Assets
Interest freeLiabilities
Net Assets
Sales
BalanceSheet
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#2 Scenario:
Project Management: The Process (contd) Risk the SSS Analyses
Variables are interrelated, thus painting different,plausible scenarios involving different (but consistent)sets of variables is helpful. Usually, the factor(s)
chosen represent the largest source of uncertainty(e.g. market growth rate), around which the scenariosare built.
The Best/Worst Case Analysis : where scenariosinvolving best/normal/ worst sets of variables are worked
out, e.g.BEST: high demand, high selling prices, low operatingcosts etc.WORST: low demand, low selling prices, high operatingcosts etc.
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#3 Simulation:
Project Management: The Process (contd) Risk the SSS Analyses
Sensitivity analysis indicates what-if naturecorrelations between dependant and various inputfactors, denoting strength of relationships;
A decision maker would want more certainty i.e. thelikelihood of such occurrences.Simulation techniques help in developing probabilityprofiles of events by combining (randomly) values of variables which have a bearing on chosen criteria.
It is a powerful technique which permits use of great deal of
information and a highly efficient medium of communication;It does not replace judgement, contrarily it requires moreapplication of judgement;A useful technique in the absence of good experience
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Lending institutions/financial managers wantto know how much should be sold/produced at a minimum to ensure the project does not
lose money? Viewpoint 1: Accounting i.e. a value that ensuresreturn of principal without availing of anyopportunity (via the time-value principle).Projects breaking even this way have ve NPVViewpoint 2: Financial - the focus is on valuecreation i.e. the level at which the project willyield a 0 NPV.
Project Management: The Process (contd) Risk the Break Even
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Interest Factor
12%,10yrs
PbT=0.33Sls 3M
Tax = 0.33 PbT PaT = .667 PbT
Sls 9M V.C. 6M F.C. 1M Depr 2M PbT 0M
Project Management: The Process (contd) Risk the Break Even
P & L Forecast for a new Plant
Head Yr0 Yr1-10Investment 20,000
Sales 18,000
Var.Cost 12,000
Fixed Cost 1,000
Deprn. 2,000
Pre-tax Profit 3,000
Taxes(@ 33.3%) 1,000
P.a.T 2,000
Cflow (Oprn) 4,000
Net Cflow 20,000 4,000( Figs. Rs 000)
Accounting BEven :Sales = (Fixed Costs + Deprn.)/
Contribution Margin ratio= (1,000+2,000)/0.333
= Rs. 9 M
Financial BEven (12% rate) :Cash Flow = Deprn.+ P.a.T=0.667(0.333x Sales Rs.3M)+ Rs.2M= 0.222 x Sales
PV = 0.222 x Sales ( Discounted)= 0.222 x Sales x 5.650
i.e.20,000 = 0.222 x Sales x 5.650= Rs. 15.94 M
Contributionmargin %Sales is
33%
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i.e. Tot. accruals/ Tot. Debt burden
In addition to Break Even, financial institutionsalso assess:
Break Even Point for Capacity Evaluation (BEPCU):Projects reach capacity outputs over time. Only onreaching this point can stable operations start.The Fixed Cost/Contribution ratio is multiplied by%age capacity utilization to derive BEPCU
Debt Service Coverage Ratio (DSCR):Borrowers ability to service a debt is important!
DSCR = (P.a.T + Deprn & amorzn + Interests +Lease rentals)/{Repayment & Interest of term debt+ Lease rentals} all values cumulated over theperiod under consideration.
Project Management: The Process (contd) Risk the Break Even
All ratiosare further subjected
toSensitivity Analysis
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A tool developed and used for aiding sequentialdecision making in face of risk involved at everystage e.g. oil-field development.
Identifying the problem and alternatives;Delineating the decision tree: diagrammaticrepresentation of the nature of decisions situations;Specifying the probabilities, impacts and outcomes;
Evaluating the decision alternatives.Study handout on the example of a decision tree
analysis Spectrum with their electric moped.
Project Management: The Process (contd) Risk the Decision Tree Analysis
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Organizing for Projects
Projects are carried out by Institutions themselves(e.g. Aircraft Coys) Or outsourced to Pure ProjectOrganizations (e.g. MMRDA).Pure Project Organizations have a core, leanmanagement team and engage man-power from aContractor Pool allowing for flexibility in bothnature and quantum of Human Resources.
Institutions borrow personnel from internal expertgroups to form Project Teams (who in turn mightoutsource specifics) to execute Projects.
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Organizing for Projects (contd)
Pure Project e.g.Construction
C.E.O
Housing PortsRoads
PM 1
PM 2
PM 1
PM 2
PM 1
Contractor Pool
Project Team e.g. Auto-mobile
Director
Design Markt.Manf.
Mgr 1
Mgr 2
Mgr 1
Mgr 2
Mgr 1
Mgr 2
PM
Rafting or Matrix Structure
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Planning Work in Projects
Elements
Objectives
Activities (What ?)Schedule (When ?)
Budget ( How much ?)
Organization (Who ?)Work methods (Procedure, Standards )
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Planning Work in Projects (contd)
Project Planning & Control System
Objective
Budgets
Reports(Time, cost,
Performance)
ManagementDecision making
Detailing:(SoW, WBS)
Scheduling:PERT, CPM
etc.
Tracking:Time/Cost/Performance
Feedback
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Planning Work in Projects (contd)
Major Project Plan Documents1. Statement of Work/Scope of Work (SoW)
A general description of the work to be performed- called deliverableswork excluded
Overall schedule of project
Construction of HouseConstruction, painting, internal electrical wiring, provision of electrical points,
plumbing as per the design of the Architect and the work specifications
Electrical fittings and Sanitary fittings to be supplied by the owner (exemption)
Completion date- 6 th June 2004
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Planning Work in Projects (contd)
2. Work Breakdown Structure (WBS)The breaking of overall project into sub elementsCould be further broken downEnables preparation of individual work schedules, their inter relation ships and precedenceEnables estimation of Resource requirementsEnables realistic Costing
It is the basis for costing and scheduling & is monitored in the
project control process to compute variance with actual costsand schedules.Identifies the Functional divisions/ Managers, Contractors to beinvolved for apportioning responsibilities
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Planning Work in Projects (contd)
Example of WBS - Construction of a building
1. Excavation
2. Foundation
3. Frame
4. Walls
5. Ceilings
6. Electrical wiring
7. Plumbing
8. Painting
Each of these will have a detailed Specification
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Planning Work in Projects (contd)
3. SpecificationsThe requirements to be met
Could be compatibility with established standards or a new specified requirement
Helps in realistic costing
Avoids ambiguity and consequent cost and timeover runs & legal issues
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Planning Work in Projects (contd)
A typical User (Customer) Contractor Exchange (inabsence of clear specifications)
Contractor: The lighting for the office is finished. As weagreed, I wired 20 ceiling lights
Customer : But you said there would be enough lights tomake the room bright. This room seems kind of dark
Contractor : For a room this size, 15 lights are standard.
As we agreed, I put in 20 just to be sureCustomer: Yes, but you said 20 would make the room
bright and they dont. You will have to put in more lights
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Planning Work in Projects (contd) Constructing process maps is a method
currently favoured by Project Managers,e.g. 4-fields mapping . It captures Projectphases, Tasks in the phases, Responsibilitymatrix for Tasks & the Standards for tasks
#3 Task flow
#1 Team Members# 4 Standards
Listed for eachtask
*****
*****
*****
#2 Phases (WBS)
With start/endCriteria. ABC
(ResponsibilityMatrix)
Eachphase hasmanytasks
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Planning Work in Projects (contd) Designing & Tracking Tools
The Project Planning process stages are:Identify the constituent activities;Determine their logical sequence;Prepare estimates of time & resources;Present the plan in a readily readable format.
The general approach to planning involves starting with arough overview and then conducting revisions of thisthrough an iterative process i.e. going through the cycle
several times to test the effect of the revisions made on theoutcomes;The objective is to make major revisions early in theplanning cycle and then make minor refinements in the plan.
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Planning Work in Projects (contd) Designing & Tracking Tools
The development of detailed time plans have varyingcomplexity, in line with the nature of the project, however the significant area of commonality is:
A construction of comprehensive but comprehensible picture
of the project activities;Communication with others.The preference for graphical techniques hinges on theability of people to understand what is going on i.e.visibility , illustrating inter-relations between activitiesand time. The 3 most commonly used charts are:
The Gantt ChartP rogram Evaluation & Review Technique: PERT chartsCritical P ath Method: CPM charts .
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Planning Work in Projects (contd) Designing & Tracking Tools
Gantt (Bar) Charts: Simple to construct and understandSimple to construct and understand Can track progress of individual Activity easilyCan track progress of individual Activity easily Good for small projects; e.gGood for small projects; e.g Boil Water for TeaBoil Water for Tea
Activities:1. Fill kettle. 02mins.2. Put on the stove..01min
3. Light the stove. 01min.4. Wait for boiling . 05mins.5. Take off kettle . 01min.6. Put off stove . 01min.
Actualactivity
Plannedactivity
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Planning Work in Projects (contd) Designing & Tracking Tools
Network Scheduling Developed to address the drawbacks of GanttDeveloped to address the drawbacks of Gantt
chart esp. inter relationships/ inter dependencieschart esp. inter relationships/ inter dependenciesbetween Activitiesbetween Activities
Suited for complex projects involving manySuited for complex projects involving manyactivities.activities.
PERT developed for US Navy to manage complexPERT developed for US Navy to manage complexPolaris Missile Program.Polaris Missile Program.
CPM dCPM d eveloped in 1957 in an industrial setting (for Planteveloped in 1957 in an industrial setting (for Plantconstruction project for DuPont), and gives relativelyconstruction project for DuPont), and gives relativelymore importance to project cost.more importance to project cost.
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Planning Work in Projects (contd) Designing & Tracking Tools
Concepts in Network DiagramsConcep ts in Network DiagramsActivity-on-Arrow (AoA)Activity-o n-Arrow (AoA)
Activity Symbol of Activity Time required
Fill kettle A 01 min.
Event- Beginning or End of an Activity
Beginning of filling End of filling
A
01min.1 2
IMPORTANT RULE: There can be ONLY ONE Arrow (Activity) between two events!
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Planning Work in Projects (contd) Designing & Tracking Tools
Concurrent ActivitiesConcurrent Activities Activities that can be carried out concurrently / simultaneouslyActivities that can be carried out concurrently / simultaneously Not interdependentNot interdependent
1
2
3B
A A = Fill kettle
B = Light stove
C
2 D3 4
5
C Preceding Activity
D Succeeding Activity
Activity Symbol of Activity Time required
Observing for water to boil C 5 mins.
Take kettle off stove D 1 min
1
Succeeding/Preceding ActivitiesSucceeding /Preceding Activities
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Planning Work in Projects (contd) Designing & Tracking Tools
1 2
3
4
AB
C
Example of two Activities with a Common immediate Predecessor
Dummy Activity- An imaginary Activity which does not consume resourcesbut included in the Network diagram to maintain network logic and understand inter dependency of Activities
2 4
A: Fill KettleB: Set up tea cupsC: Wait for water to boil
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Planning Work in Projects (contd) Designing & Tracking Tools
Activities:Description Predecessor
A. Fill kettle. 02mins. StartB. Place on the stove..01min AC. Light the stove. 01min. StartD. Observe boiling . 05mins. CE. Take off kettle . 01min DF. Put off stove . 01min. E
e.g. A-o-A chart for Boiling of water for tea:
A B
C
D E F
0 1
2
3 4 5 6
Note: If we were to include set up tea cups as an activity and we would do it whilewaiting for water to boil; activity D would then become a dummy & activity set uptea cu s would be a real activit .
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Planning Work in Projects (contd) Designing & Tracking Tools
The Critical PathThe major use of networks is for determining:
how long the project will take &when each activity should be scheduled.
The project duration is determined by finding the longest path through the network:
A path is any route comprised of one or more arrows
(activities) connected in sequence;The longest path from the origin node to the terminal node iscalled the Critical Path ;This gives the expected duration of the project.
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The Critical Path: an Example
DA
St 1
B
C2 3
E
F
En
4
A Shopping (H&W) - 1B Prepare to cook (W) A C Cooking (W) B 2
D Bathe & dress (W) C 1E Tidy house (H) A 1F Bathe & dress (H) E
Project: Dinner party (H & W)
There are TWO paths: #1 St 1 -2 3 En (A-B-C-D) St 1 4 En (A-E-F)
Path # 1 takes: 1 + + 2 + 1 = 4 H Path # 2 takes: 1 + 1 + = 3 H
The Project requires 4 H and path #1 determines the duration: thus Critical
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Activities not on the critical path can be delayedwithout delaying the project however, by howmuch?
The logic is to determine the latest allowable time that the activitycan be completed without delaying the completion of the project, i.e.the start can be late (or early);The time difference between early start and late start is calledslack or float;The total slack time is the maximum delay that can occur for non-critical activities. Once this slack is used up, non-critical activitiesbecome critical and any further delays will extend the projectcompletion.
The Critical Path
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Planning Work in Projects (contd) Designing & Tracking Tools
Estimating Activity Duration( PERT)Estimating Activity Duration( PERT) The target Project completion date is dependent on theThe target Project completion date is dependent on the
proper estimation of duration of all Activities involvedproper estimation of duration of all Activities involved
Estimation of Activity duration is not always a straightEstimation of Activity duration is not always a straightforward process because of an element of uncertaintyforward process because of an element of uncertainty
PERTPERT addresses the uncertainty in the duration by usingaddresses the uncertainty in the duration by usingthree time estimatesthree time estimates
OptimisticOptimistic Most likelyMost likely PessimisticPessimistic
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Planning Work in Projects (contd) Designing & Tracking Tools
Estimating Activity DurationEstimating Activity Duration contdcontd
Optimistic Time estimateOptimistic Time estimate aa -- Every thing goes accordingEvery thing goes accordingto plan with minimum difficultiesto plan with minimum difficulties
Pessimistic time estimatePessimistic time estimate bb Maximum possible time for Maximum possible time for completion considering all unfavourable conditionscompletion considering all unfavourable conditions
Most likely Time estimateMost likely Time estimate mm -- Lies between OptimisticLies between Optimisticand Pessimistic time estimates. Time required toand Pessimistic time estimates. Time required tocomplete in normal conditionscomplete in normal conditions
Estimates are obtained from, experience, people &Estimates are obtained from, experience, people &experts knowledgeable about the difficulties involvedexperts knowledgeable about the difficulties involved
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Planning Work in Projects (contd) Designing & Tracking Tools
Expected Time (tExpected Time (t ee ) for completion of activity) for completion of activity PERT assumes thatPERT assumes that a, ba, b areare equallyeq ually like to occur, wherelike to occur, where
asas mm isis four timesfour times more likely to occur more likely to occur
Thus,Thus, tt ee = (a+4m+b)/6= (a+4m+b)/6
Variance,Variance, v = {(b-a)/6}v = {(b-a)/6} 22 is the measure of variability inis the measure of variability inthe activity completion timethe activity completion time
Standard Deviation,Standard Deviation, = v= v 1/21/2
The larger the difference between a & b, the larger theThe larger the difference between a & b, the larger thevariance and uncertainty with tvariance and uncertainty with t ee ; i.e the higher the; i.e the higher thelikelihood of completing earlier or later than tlikelihood of completing earlier or later than t ee ..
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Planning Work in Projects (contd) Designing & Tracking Tools
Probability of Project CompletionProbability of Project Completion The expected Project Completion Time is theThe expected Project Completion Time is the SUM SUM of theof the
Expected completion timeExpected completion time ttee of of ALLALL activities on the Criticalactivities on the CriticalPath;Path;
The Standard Deviation,The Standard Deviation,
, for Project Completion Time is, for Project Completion Time isthethe Square root of the sums of VariancesSq uare root of the sums of Variances of of ALLALL activitiesactivitiesalong the Critical Path:along the Critical Path:
= ( v= ( v 11 + v+ v 22 + v+ v nn ))1/21/2 The probability of completing the project in the givenThe probability of completing the project in the given
completion duration,completion duration, ttss ,is determined by the number of ,is determined by the number of standard deviations separating them:standard deviations separating them:
z = (tz = (t ss t t ee )/)/ , the corresponding probability can be, the corresponding probability can befound from a standard z-table.found from a standard z-table.
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Planning Work in Projects (contd) Designing & Tracking Tools
Probability of Project Completion (example)Probability of Project Completion (example)
Avity to(a)(a)
tp(b)
tm(m)
te/v
A 2 10 3 4/1.78
B 3 5 4 4/0.11
C 4 12 5 6/1.78
D 5 7 6 6/0.11
E 5 9 7 7/0.44
F 4 12 5 6/1.78
Path PathVariance
path Z (t s = 11days)
Prob. in11 days
A-D 1.78+0.11 1.37 ( 11 -10 )/1.37 0.7673
B-E 0.11+0.44 0.74 (11-11)/0.74 0.5000
C-F 1.78+1.78 1.87 (11-12)/1.87 0.2981
A
B
C
DE
F
The probability
of finish in lessthan 11 days =.7673 x.5 x.2981= 0.1143 i.e.
< 12% chance
ttee = (a+4m+b)/6; v = {(b-a)/6}= (a+4m+b)/6; v = {(b-a)/6}22
pathpath = ( v= ( v 11 + v+ v 22 + v+ v nn))1/21/2
z = (tz = (t ss t t ee )/)/ athath
(t s = 11 days)
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Planning Work in Projects (contd) Designing & Tracking Tools
Avity to(a)(a)
tp(b)
tm(m)
t e
A 2 10 3 4
B 3 5 4 4
C 4 12 5 6
D 5 7 6 6
E 5 9 7 7
F 4 12 5 6
A
B
C
DE
F
The Critical Path
Path A-D (S-1-E): 4 + 6 = 10 daysPath B-E (S-2-E): 4 + 7 = 11 daysPath C-F (S-3-E): 5 + 7 = 12 days
i.e. the project is not expected tobe completed in less than 12 days.The longest Path is C-F (S-3-E) andis critical, defining the duration.
S E
1
2
3
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Planning Work in Projects (contd) Designing & Tracking Tools
Developed in 1957 gives relatively more importance toproject cost, when Project activities are more accuratelyforecast-able and a definite relationship between time andcost can be established for each activity.The CPM assumes that the estimated completion times canbe influenced by applying resources to particular keyactivities that the time for any activity is variable,depending on the amount of resources applied.The PERT method has been criticized because it is basedon assumptions that sometimes yield uncertain results!
The Critical Path Method(CPM)
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Planning Work in Projects (contd) Designing & Tracking Tools
CPM and PERT: a comparisonCPM and PERT: a comp arison Both employ Network diagrams & analysis of criticalBoth employ Network diagrams & analysis of critical
pathspaths CPM, however, use a deterministic approach in timeCPM, however, use a deterministic approach in time
estimates for each Activity:estimates for each Activity: only one time estimateonly one time estimate isisused. Thus, in CPM there is no statistical treatment of used. Thus, in CPM there is no statistical treatment of uncertainty.uncertainty.
CPM is more Activity oriented. Hence it is possible toCPM is more Activity oriented. Hence it is possible tomeasure percentage completion of an Activitymeasure percentage completion of an Activity CPM more suited for well defined projects, withCPM more suited for well defined projects, withrelatively small uncertainties like construction or in therelatively small uncertainties like construction or in theProcess industriesProcess industries
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Planning Work in Projects (contd) Designing & Tracking Tools
CPM and PERT: a comparisonCPM and PERT: a comp arison
CPM includes a mathematical procedure for estimatingCPM includes a mathematical procedure for estimatingthe trade off between Project duration and Costthe trade off between Proj ect duration and Cost
PERT, puts greater emphasis on uncertainties and onPERT, puts greater emphasis on uncertainties and onEvents (Mile stones)Events (Mile stones)
PERT is more suitable for R&D type of projects wherePERT is more suitable for R&D type of projects whereuncertainties are more and duration of an Activity cannotuncertainties are more and duration of an Activity cannotbe estimated accuratelybe estimated accurately
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Planning Work in Projects (contd) Analyzing Networks
For analyzing networks, e.g. to determine CriticalPath, Slack, Probable Completion Times, etc. weneed information on:
Activity & Interrelations (preceding/succeeding)
Earliest event time & latest event time (to bedetermined)
Conventionally, these are included in the nodesas under (for a single activity):
Event Label
10
Earliest Event Time
0
Latest Event Time0
205
5
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Planning Work in Projects (contd) Analyzing Networks
10 00
20
30
40
50
60 70A5
B
3
D
5
C4
E
6
F7G
5
H8
5
8
9
10
16
Latest !
24
Estimation of Earliest Event Times
Forward Pass
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Planning Work in Projects (contd) Analyzing Networks
10 00
20
30
40
50
60 70A5
B
3
D
5
C4
E
6
F7G
5
H8
5
8
9
10
16
Latest !
24
Estimation of Latest Event Times
2416
10
9
11
5
Earliest Reverse Pass
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What do we do with determination of CriticalPath?
Provides us the key to prioritization
Provides us the back bone for further analysis:Of Resource needs and costsImpact of adjusting Project SchedulesFor reporting on an agreed base
If we can establish a Time-Cost relationship .
Planning Work in Projects (contd) Analyzing Networks
A l i N k Ti C
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Analyzing Networks: Time-CostRelationship (CPM)
In repeat or standard projects, duration & costof activities are reasonably well established:
Resource requirements per unit of work is definedTechnological or other minimum time to finish a job is
knownA standard or normal time and cost can beestablished
The Critical Path in a network are derived usingthe standard times.
But client requirements and/or deadlinepressures may require a Project to be expedited.
With additional resource inputs, time reduction ispossible
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Time-Cost Relationship: CPM (contd)
Definitions:Standard Time: the timeusually/normallyrequired to carry out anactivity: TsCrash Time: theminimum time requiredto carry out an activity.Reduction impossible: Tc
Standard & CrashCosts: Costs for resources associatedwith these Times: C s, C c Time
Cost
TsTc
C c
C s
Cost Slope:Cost per time-unit
of activity.
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Example:Activity T s Tc Cs C c Sequence
A 5 3 30 60 StartB 9 5 50 90 After AC 8 7 50 100 After AD 6 4 20 50 After BE 3 2 10 20 After CF 4 2 50 80 After D, E
1 2
3
4
5 6A
B
C
D
E
F4/1
3/2
6/4
8/7
9/5
5/3 13
0 5
14
20 24
0 5 2420
14
17
ProjectDuration: 24WCost:Rs.210m
Time-Cost Relationship: CPM (contd)
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1 2
3
4
5 6A
B
C
D
E
F4/1
3/2
6/4
8/7
9/5
5/3 13
0 5
14
20 24
0 5 2420
14
17
If the Client wants a 1W reduction we will need to crashsome activities. Which one?
Activity Ts Tc Cs CcA 5 3 30 60B 9 5 50 90
C 8 6 50 100D 6 4 20 50E 3 2 10 20F 4 2 50 80
ProjectDuration: 24WCost:Rs.210m
We want to reduce theProject Duration. So we lookfor activities on the Critical Path:
A, B, D or F?Reduction must be at the
least cost/time unit. So we lookfor activity with lowest cost slope.B has the least slope: wereduce B, adding Rs.10m to
Cost.
Cost Slope1510
50151015
ProjectDuration: 23W
Cost:Rs.220m
8/5 23
13
192319
16
Time-Cost Relationship: CPM (contd)
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1 2
3
4
5 6A
B
C
D
E
F4/1
3/2
6/4
8/7
8/5
5/3
If the Client now wants to execute at the least possible time.What can the Project manager offer?
Activity Ts Tc Cs CcA 5 3 30 60B 8 5 50 90
C 8 7 50 100D 6 4 20 50E 3 2 10 20F 4 2 50 80
Cost Slope1510
50151015
We can crash B by 3 moreweeks to 5 at an additionalcost of Rs.30m. B then is at
Crash. This reduces the Projectduration to 20W.
This makes the other Path i.e.A, C, E & F Critical too!
So any further reduction willneed to effect both Paths.
A-B-D-F: 23 WA-C-E-F: 20 W
5/5 20 W,250m
Time-Cost Relationship: CPM (contd)
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1 2
3
4
5 6A
B
C
D
E
F4/1
3/2
6/4
8/75/3
If the Client now wants to execute at the least possible time.What can the Project manager offer?
Activity Ts Tc Cs CcA 5 3 30 60B 8 5 50 90
C 8 7 50 100D 6 4 20 50E 3 2 10 20F 4 2 50 80
Cost Slope1510
50151015
5/5 20 W,250m
We can reduce F by 3W, costing 45 m & A by2 W, costing 30m. A & Fare crashed.
C, D & E are not yet atcrash. D can be reducedby 2 W, costing 30m.
C & E can be crashed by
1 W each, costing 60m.
3/31/1
4/4
7/7 3/3 14 W,Rs. 415m
ProjectDuration: 24WCost:Rs.210m
1414
1010
6
6
33
0
077
Time-Cost Relationship: CPM (contd)
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To run a Project, an establishment need to beset up.
This is relatively independent of the Project contente.g. Project Office, Communication, Security etc.
the extent may vary with nature of Projects.This set-up exists for the entire duration of theProject and is hardly affected by activity variance.Thus, the cost for this is fixed/structural in natureand has to be incurred for the duration of the
project and is directly proportional to time. (Activityis inversely proportional to time).Activity Cost and Establishment costs displaycontrary time-trends.
Time-Cost Relationship: CPM (contd)
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Time-Cost Relationship: CPM (contd)
Time
Cost
Activity
Establishment
Total
The Total Cost passes isis U shaped i.e. passes througha minimum point.
Thus crashing a Project is also
determined by the establishmentcost to determine the Optimumor least cost.
E.g. In our previous example if wewere asked for the Optimum Cost,given the establishment cost is
@ Rs.15m/week. We would need to factor in this cost along with thecrashed activity costs.
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Time-Cost Relationship: CPM (contd)
Duration Activity Cost Estabish--ment Cost @
Rs.15 m /w
Total Cost
24 W Rs.210m Rs.360m Rs.570m
23 W Rs.220m Rs.345m Rs.555m
20W Rs.250m Rs.300m Rs.550m
14W Rs.415m Rs.210m Rs.625mCrashedDuration
NormalDuration
OptimumDuration
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Project Control
The basic questions that need toanswered are:
Is the project as a whole (and its parts) on/ahead /behind Schedule?Has the cost of the Project as a whole (andits parts) as per/ more than/ less thanbudget?
What is the trend in performance?The Standard Variance analysisapproach is inadequate!
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Project Control (contd)
E.g. (Costs in Rs. 000)Activity A Activity B
Bud. Cost in Period 50 30Cum. Bud. Till Date 200 75Actual cost in Period 55 28Cum. Actual till date 240 80
Standard Budgetory Control Variances:Variance for Period: - 5 2Cum. Variance till Date - 40 - 5
Is work on
schedule?
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Project Control (contd)
Definitions:Budgeted cost of work Scheduled (BCWS): representsthe total cost budgets for all work packets to becompleted and work-in-progress scheduled to befinished on date;
Budgeted cost of work Performed (BCWP): representsthe total cost budgets for all work packets to becompleted and work-in-progress executed on date;
Actual cost of work Performed (ACWP): represents thetotal cost budgets for all work packets to be completedand work-in-progress executed on date;
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Project Control (contd)
With these 3 parameters, a Project may bemonitored:
Cost Variance = BCW P ACW P
Cost Performance Index: BCWP/ACWPSchedule Variance = BCW P BCW S (in cost terms)
Schedule Performance Index: BCWP/BCWS
Estimated Cost Performance Index: BCTW/(ACWP +
ACC)Where, BCTW = Budgeted cost of total work & ACC = Additional
cost for completion)
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Project Control (contd)
E.g. Project Start 01/01; End 30/10 andreview 30/06 i.e. 24 w (figs. In Rs. L)
BCWS: 15BCWP: 14
ACWP: 16BCTW: 25(40 w)
ACC: 12Cost Variance: BCWP ACWP (14 -16) = -2Schedule Var.: BCWP BCWS (14 15)= -1
Time Variance: Status date Date at which BCWS=BCWP
Est. Cost Index: {BCTW/(ACWP+ ACC)} {25/(16+12)} = 0.89
SpentMore
BehindSchedule
Will spend more;funds required
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Project Control (contd)
25
40 Weeks
Rs. L
BCTW
Review Date
24
BCWS
BCWP
Time.Var
ACWP Cost Var.
ScheduleVar.
X ACWP + ACC
Overspend
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Project Control (contd)What do these terms really indicate?
A project manger can charge the client at pre-agreed ratesfor work completed on date of review This is BCWP andrepresents the Earned value of the project.The manager has paid out at actual to his supplier for the
work performed This is ACWP.
If the Actual is less then Earned, then the cost is successfullymanaged!However, if the progress is behind schedule then the clientpays only for completed task and the Projects earnings areless than budgeted. Schedule variance is this shortfall.
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Project Control (Practice Problem)
You have employed a Contractor to install 10000computers @ 20 computers/day and @ Rs.200 /installation. Every 10 days, there is a review andpayment. At the end of the 30 th Review, you find:
#s installed 5800Bill raised Rs.62000/-
A) Determine: Time, Cost & Schedule VariancesB) What is the earned value for the Contractor?C) What do you report to your management about the
Completion of the project, assuming the Contractor has put his best efforts and unforeseen situationshave arisen in work execution.
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BCWS: 30x10x20 x Rs.200= Rs.1.2 MBCWP: 5800 x Rs.200/- = Rs.1.16 MACWP: Rs.0.62 MCost Variance: Rs.1.16 Rs.0.62 = Rs. 0.54 M
Schedule Var.: Rs.1.16 Rs.1.20 = - Rs. 0.04 MTime Variance: 1 week late (5800 should have been installed by the 29 th review!)Earned Value: 5800 x Rs.200 = Rs.1.16 M, (contractor has probablyunder billed.)Project will be at least 1 week late and will complete the project withinthe budget, subject to bill verification.
Project Control (Practice Problem)
P j C l (P i P bl )
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BCWS = Rs.1.2 M; BCWP = Rs.1.16 MACWP: Rs.1.18 MCost Variance: Rs.1.16 Rs.1.18 = - Rs. 0.02 MSchedule Var.: Rs.1.16 Rs.1.20 = - Rs. 0.04 MTime Variance: 1 week late (5800 should have been installed by the29 th review!)Earned Value: 5800 x Rs.200 = Rs.1.16 M, contractor will be paidthis amount. The Rs.0.02 M excess has to be examined.Project will be at least 1 week late and the project will overshoot thebudget if the billing is found correct. Then the installation rate worksout to (Rs.1.18M/5800) Rs. 204/- per installation
ACC: (10000-5800) x Rs.204 = Rs.0.87 M ;Projected Cost: Rs.( 1.18+ 0.87 ) = Rs.2.05 M against BCTW: Rs.(10000 x Rs.200) = Rs.2.00 M
Project Control (Practice Problem)If the billing is corrected to Rs.1.18 M
Project Scheduling with Resource
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Project Scheduling with ResourceConstraints
In real life, there will be constraints on availability &use of resource:
Not every resource required will be freely available influencing design of project activitiesParticularly true when multiple activity/ projectsrequires the same resource e.g. Specialist skillsFurther, crashing will need to take this constraintinto consideration
P j t S h d li ith R
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Project Scheduling with ResourceConstraints ctd.
Resource Loading is the amount of resource necessary for the Project:
Changes through the duration of the execution since natureand type of activities vary with timeResults in variable requirement/loading of a resource over
timeThe usual resource loading pattern is:
A slow but steady build-upIntense peaking at a certain point in timeA gradual decline
Most Projects require few resources at early and latestages and many in the middle.This problematic for mangers who would like to dealwith uniform pool of workers, equipment etc.
P j t S h d li ith R
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Project Scheduling with ResourceConstraints ctd.
The process of smoothening the resourcerequirements though the Project duration istermed Resource Leveling :
Aimed at sequencing the project activities to level the
requirement of the constrained resource, e.g. shiftworking on bottle-neck machine.The results in resource requirements for the overallproject is maintained at a fairly constant levelFair amount of leveling can done by juggling theactivities around:
Taking advantage of SlackDelaying non-critical activities.
P j t S h d li g ith R
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Project Scheduling with ResourceConstraints ctd.
Consider a Maintenance Project involving overhauling amachine using a team of mechanics. The machine hasdifferent sub-systems which can be independentlyworked upon: Hydraulic, Electrical & Mechanical. TheProject details are given as under:
Activity days team strengthA) Disassembly (1-2) 2 3B)Ohaul Hydraulic (2-3) 2 2C)Ohaul Mechanical (2-4) 4 3D)Ohaul Electrical (2-5) 1 1E)Assembly (4-6) 2 3
Note: No mechanic can work more than 5 days at a stretch
Project Sched ling ith Reso rce
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Project Scheduling with ResourceConstraints ctd.
A B C D E
Gang 1 1 1 1 1
Man /day
2 2 3 1 3
Durn. 2 2 4 1 21 2 A
2
3
4
5
6
B
2
4C
D1
2 E
1 2 3 4 5 6 7 8
2 2 6 4 3 3 3 3
1 1 3 2 1 1 1 1
Man Reqd.
Gang Reqd.
Day
Project Scheduling with Resource
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Project Scheduling with ResourceConstraints ctd.
A B C D E
Gang 1 1 1 1 1
Man /day
2 2 3 1 3
Durn. 2 2 4 1 21 2 A
2
3
4
5
6
B
2
4C
D
1
2 E
1 2 3 4 5 6 7 8
2 2 3 4 5 5 3 3
1 1 1 2 2 2 1 1
Man Reqd.
Gang Reqd.
Day
1 mechanic can join from day 3, 1 morefrom day 4, 1 more from day 5 and 2 mechanics can leave from day 7; so nomechanic works more than 5 days
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Improvement ProjectsMany Projects which are done in companies areaimed at improving the current status or solvingrecurring problems, e.g.:
In Operations: reduction of rejectionsIn Design: reducing documentation & testing timeIn Finance: reducing accounts receivable & bad debts
Though the subjects are different, most of theserequire the same approach based on utilizing in-company knowledge and experienceThus there is a standard process for theseProjects, developed from the TQM philosophy.
I P j I f i & D i i
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Improvement Projects: Information & Decision
When work is delegated or distributed two dimensions, Responsibilityand Authority are prime concerns. But there is more, especially during aset-up/change process;People have to "do" something to make the processes happen. Thereforeit is useful to describe what should be done by whomThe RAS CI model is a relatively straightforward tool that can be used for
identifying roles and responsibilitiesR = Responsible - owns the problem / project A = to whom "R" is Accountable - who must sign off ( Approve ) on workbefore it is effectiveS = can be Supportive - can provide resources or can play a supportingrole in implementationC = to be Consulted - has information and/or capability necessary tocomplete the workI = to be Informed - must be notified of results, but need not beconsulted
Information & Decision contd
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IRIA
I, SIRA
RAIC
IRCA
RASCI Chart for Road Repair
Resume trafficflow
Repair road &certify
Divert & usealternate route
Stop access
for period
PublicPoliceContractorMunicipality
Information & Decision contd
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Providing Information and granting Decision Rights requires to be
supported by decision-making abilities.Decision-making is a universally important competence in business.
Some decisions clearly have a greater impact on the businessthan others, but the underlying skill is the same;The difference is in the scope and depth of the process you go
through to reach your decisionIn day-to-day operations, these are mostly in the domain of:
Choice makingProblem-solving/Improvements
In these areas, the people need to be supported with simple tools/aids,viz.
Decision support tools for making a choice quantitativelyProblem Solving tools
E.g. The 8-D methodology, Six Sigma
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Decision Making: informed choice
One reason why decision-making can be so problematic is that the mostcritical decisions tend to have to be made in the least amount of time .
People feel pressured and anxious;The time pressure means taking shortcuts , jumping to conclusions , or relying heavily on instinct to guide your way.
The other extreme is the guy who simply can't make a decision becausehe analyses the situation to death!
Between instinct and over-analysis is a logical and practical approach todecision-making that doesn't require endless investigation, but helpsweigh up the options and impacts is needed.
Decision-making is a skill set that needs be learned and improved;One such approach is called the Kepner-Tregoe Matrix . It provides anefficient, systematic framework for gathering, organizing and evaluating
decision making information.
Making an informed choice
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Kepner-Tregoe describes the following steps to approachdecision analysis:
1. Prepare a decision statement having both an action and aresult component;2. Establish strategic requirements ( Musts ), operational objectives(Wants );
3. Generate alternatives. Check if Musts are met by eachalternative;4. Rank objectives (Wants) and assign relative weights;5. Assign a relative score for each alternative on an objective-by-
objective basis;6. Calculate weighted score for each alternative and identify toptwo or three;7. Make a final, single choice between top alternatives.
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ALTERNATIVES
MUSTS
WANTS
1 23
Problem Solving
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The problem with problems is not that they occurin spite of our best efforts, stuff happens. Unforeseen circumstances will always conspireagainst us to disrupt the smooth operation of our production and operations systems and upset our plans.The problem with problems is that we fail to prevent them from
happening again . Problems do not confine themselves to organizational niches or structures: they encompass many parts, even the whole organization.Solutions, therefore, more often than not require a team effort to find alasting cure:
Engaging different skills, knowledge & aptitudeRequiring divergent resourcesThese reside scattered in different parts of the organization
Problem Solving
Problem Solving: Team approach
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Ford Motors is credited with formalizing TOPS (Team Oriented P roblem S olving)methodology:
Involvement: cross-functional and cross-hierarchical,
Knowledge & Information sharing,
Camaraderie and bonding,
Multi-dimensional, thus a holistic solution,Using the 8D (8 Disciplines) process, renamed Global 8D (G8D):
Step-by-step (P-D-S-A) approach:subsequent steps based on soundly established previous steps, few come-backs,Problems tackled in bite-size piecesProvisions for emergency response, escape and recurrence preventing measures
The 8-D method of problem solving is appropriate in "cause unknown" situations andis not the right tool if concerns center solely on decision-making or problemprevention
8 D Process
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D 0 - The Planning Stage: . 8-D is especially useful as it results innot just a problem-solving process, but also a standard and areporting format .
Does this problem warrant/require an 8D? If so comment why andproceed.
Is an E mergency R esponse Action needed? D 1 - Establishing the Team: Establish a small group of peoplewith the process/ product knowledge, allocated time, authority andskill in the required technical disciplines to solve the problem and
implement corrective actions.Team to set Objectives & Goals: brings belief, commitment &realism
8 D Process
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D 2 - Problem Definition: Provides the starting point for solvingthe problem or nonconformance issue.Need to have correct problem description (photos, verbatimstatements, eye-witness accounts) to identify causes.
5Ws + H approach in is and is not answers e.g. Who is or is notaffected by the problem
Need to use terms that are understood by all.D 3 - Developing I nterim C ontainment A ctions :Temporary actions to contain the problem and fix until permanentcorrection is in place - document actions in an Action Item Table.D 4 - Identifying & Verifying Root Cause: Analyze for Root
Cause of the problem.Brainstorming, 5 Whys, Ishikawa Diagrams, DOE etc.document actions in an AIT.Identify and verify the Escape Point
8 D Process
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D 5 - Identify Permanent Corrective Actions:solutions that address and correct the root cause.
Solutions determined to be the best of all the alternatives.Document and verify the Permanent Corrective Action (PCA) in theAIT.
D 6 - Implementing & Validating the PCA
Implement and validate to ensure that corrective action does what itis supposed to do.
Detect any undesirable side effects. Document this on the AIT.Return to root cause analysis, if necessary
D 7 - Preventing Recurrence: determine what improvements insystems and processes would prevent problem from recurring.
Ensure that corrective action remains in place and successfulAddress similar systemsRevise related documentation (Design/Process/Q-Systems)
8 D Process
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D 8 - Congratulate Your Team: ( ensure: was this problem solvingexercise effective? Has it been verified with a follow-up? )
Use all forms of employee recognition and document as necessary.Celebrate successful conclusion of the problem solving effort.Formally disengage the team and return to normal duties OR
Go for the next round of problem solving for the remaining issues
PD 0,1,2
& 3
D 6
AD 7 & 8