Understanding and Applying Cost Categories to the Cost ...€¦ · Understanding and Applying Cost...
Transcript of Understanding and Applying Cost Categories to the Cost ...€¦ · Understanding and Applying Cost...
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Understanding and Applying Cost Categories to the Cost Estimating Process
Understanding and Applying Cost Categories to the Cost Estimating Process
NASA Project Management ConferenceNASA Project Management ConferenceCollege Park, MarylandCollege Park, MarylandMarch 30 & 31, 2004March 30 & 31, 2004
James C. Taylor, PMPESI International
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©ESI International 2
Outline
Common cost estimates mistakesCost categories and cost elementsRates: what they are; How they are used A universal cost estimating formatA practical cost estimating process
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Common Mistakes and Estimating Inadequacies
Misinterpreting/misunderstanding requirementsLack of historical dataShort sighted view of project benefits and costsOutdated estimating databasesReliance on “intelligent” guesses
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©ESI International 4
Common Mistakes... (Continued)
Risks not adequately accounted forProposal writing/cost estimating as additional duty
Underused accounting systems
Rate secrecy
Arbitrary cost changes
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©ESI International 5
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Cost Categories
Direct costs: those costs that can be associated with a particular cost center or a specific contract.
Indirect costs: those costs that cannot be associated with a particular cost center or contract.
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Split Cost CategoriesMaterial costs: direct costs if in the end product; Indirect if needed for other products as well.
Administrative costs: direct if staff works directly for a project; Indirect if working in general support function.
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Common Cost Elements
Overhead costs: costs associated with the comfort and well being of the employee
Fringe benefits: costs associated with perks for the employee
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Common Cost Elements(continued)
General and administrative costs.(G & A): costs associated with the well being and health of the company.
Other direct costs: costs other than labor and materials that are directly attributable to the project.
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Application and Importance of Rates
$100,000 Estimated labor costs+ 70,000 70% OH170,000 Labor + OH+ 20,000 Materials costs+ 15,000 ODC (consultant)205,000 Total Cost + OH+ 30,750 15% G & A235,750 Direct & Indirect costs
+ 23, 575 10% Fee$259,325 Total Price
Requiredin PublicSectorBids
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Universal Cost Estimating FormHOURS RATE ESTIMATED COST TOTAL COST
DIRECT LABORScientificEngineeringAdministrative
TOTAL DIRECT LABOR
OVERHEADScientific (% of Direct Labor)Engineering (% of Direct Labor)Administrative
TOTAL OVERHEAD
MATERIALSTOTAL MATERIALS
OTHER DIRECT COSTSSubcontracting (Consultants)Travel (Per Diem & Transportation)
TOTAL ODCs
GENERAL AND ADMINISTRATIVETOTAL G & ASUBTOTAL ALL COSTS
FEE (% OF SUBTOTAL)
TOTAL ESTIMATED PRICE
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Practical 10-step Cost Estimating Process
1. Develop WBS to lowest level2. Identify and document task
interdependencies3. Develop estimates using expert
judgment, historical data, industry guidelines
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Practical 10-step Cost Estimating Process
4. Determine skill levels, numbers, and commitment assumptions
5. Convert total effort to full-time equivalents
6. Assess non-resource duration issues
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Practical 10-step Cost Estimating Process
7. Develop rough task durationestimates, using steps 3 - 6
8. Produce schedules & critical path9. Evaluate resource loading and
risks10.Document all assumptions and
prepare universal cost estimate
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Consequences of Poor Estimating Processes
No process, “intelligent” guesses, some experience: - 25% to +75% correct
Some process, experience, some historical data: -10% to + 25% correct
Good process, historical data, thorough analysis using lowest level WBS:-5% to + 10% correct
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©ESI International 16
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SummaryCost estimates are historically too lowUnderstanding of cost elements necessary to develop accurate costs
Risks must be accounted for in costs
Estimating processes must be documented and updated continually