CASSANDRA LESSONS
11
Plan for project Hardware & Software Interfaces
Data does not lie Don’t hide the truth
Early diagnosis gives you optionsCreative SolutionsUnmarried engineers to Seattle
TRANSPORTATION COSTS
15
– Truck Load: $0.10 per ton-mile
– LTL: $0.31 per ton-mile
– Small Package:
– 3X LTL rates
– More for express
– Rail: 50 - 80% of TL rates
MACRO COST ESTIMATION
16
Top Down (from the Project) External (Known?) Parameters Historical Data & Similarity Experienced Estimator Empirical Equation + Parameters Internal & External Effects
Every Industry has oneMuseums Exhibits Floors & Walls
MACRO COST: DISADVANTAGES
17
EarlyUncertainDealing with uncertainty
Problem:How much will this cost?
Once published, “FIXED”
COST INCREASES DUE TO HANDICAP ACCESSIBILITY IN PUBLIC BUILDINGS
18Schroeder and Steinfeld (1979) The estimated cost of accessible buildings. US Department of Housing and Urban Development.
Renovation Design
Convention hall 0.12% 0.02%
Town Hall 0.20% 0.05%
College Classroom 0.50% 0.13%
Shopping center 0.22% 0.006%