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The Personal Software Process
Alan Kelon Oliveira de [email protected] May 15, 2006 -
Recife
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To do an effective job, you need to...Plan your workDo your work
according to this planStrive to produce the highest quality
products
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Personal Software Process (PSP)It is a disciplined way of
writing software which can lead to dramatic improvements inthe
quality of the software you writeyour productivitythe quality of
your plans and estimates.Following a discipline like this can lead
to greater self-knowledge, a valuable thing in itself
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Personal Software Process (PSP)It shows how to apply advanced
engineering methods to their daily tasksProvides detailed
estimating and planning methodsShows how to track sw engineers'
performance against these plansExplains how defined process can
guide their workWill lead you away from random hacking and towards
professional software engineering
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KeywordsResponsibleRepeatableInformedRationalAwareMature
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PSP is not...a Silver Bullet solutiona radically different
approach to development
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PSP isa framework that allows detailed planning and tracking of
project statusa vehicle to collect in process metrics to provide
insight and opportunities to improvementa way to protect
development steps needed to build in quality
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BenefitsPSP has the potential to increase your effectiveness as
a programmer dramaticallyThe data you collect and the conclusions
you infer from them can empower you in negotiations with your
bossDeeper benefits are possible too. Any self-knowledge has the
potential to lead to personal growth
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Best practicesTask breakdown (detailed planning)Time alloted to
DesignSize estimation methodsTime alloted to Review/InspectionTime
trackingDefect trackingMetric analysisCoding standards
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What does PSP provide?MeasurementsSizeTimeDefects
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Time estimating error
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Defect Level Improvement
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Productivity Results
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PSP processes
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PSP Process Flow
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Time managementYou will likely spend your time this week much
the way you spent time last weekTo make realistic plans, you have
to track way you spend timeTo check the accuracy of your time
estimates and plans, you must document them and latter compare them
with what you actually do
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Time managementTo make more accurate plans, determine where your
previous plans where in error and what you could have done betterTo
manage your time, plan your time and them follow the plan
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Tracking timeCategorize your major activitiesRecord the time
spent on each major activityRecord time in a standard wayKeep the
time data in a convenient placeHint:When you occasionally forget to
record the start time, stop time, or interrupt duration, make an
estimate as soon as you remember
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Period planningA period plan concerns the way you plan to spend
time during the period (day, week, month)The weekly Activity
Summary
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Product planningThe product planning is based on an activity,
like developing a program or writing a reportThe Job Number Log
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Program size
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Managing your timeDecide how you want to spend your timeMake a
time budgetTrack the way you spend time against this budgetDecide
what changes to make to bring your actions into agreement with the
budgetPrioritize your time
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Managing commitmentsA true commitment requires an explicit
agreement between two or more parties on:what will be donethe
criteria for determining that it is donewho will do itwhen it will
be donethe compensation or other consideration to be given in
returnand who will provide this compensation or consideration
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Managing commitmentsAnalyze the job before agreeing to the
commitmentSupport the commitment with a planDocument the
agreementIf unable to meet the commitment, promptly tell the other
part and try to minimize the impact on the that person
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Managing commitmentsThe consequences of not managing
commitmentswork required exceeds time availableFailure to meet
commitmentsMisplaced prioritiesPoor quality of workLoss of
trustLoss of respect for your judgment
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Managing schedulesMake a project scheduleCheckpointsTrack
project plan
