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Project cost management

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Project cost management

  1. 1. Project CostProject Cost ManagementManagement Sections of this presentation were adaptedSections of this presentation were adapted fromfrom A Guide to the Project ManagementA Guide to the Project Management Body of KnowledgeBody of Knowledge 44thth Edition, ProjectEdition, Project Management Institute Inc., © 2009Management Institute Inc., © 2009
  2. 2. Project Cost ManagementProject Cost Management ““The processes involved in planning,The processes involved in planning, estimating, budgeting, and controllingestimating, budgeting, and controlling costs so that the budget can be completedcosts so that the budget can be completed within the approved budget”within the approved budget”
  3. 3. Why Do We Manage Cost?Why Do We Manage Cost? Part of triple constraint, can’t manage one withoutPart of triple constraint, can’t manage one without the others (scope, time, and quality)the others (scope, time, and quality) Plots of cost and scope against plan can help spotPlots of cost and scope against plan can help spot problems earlyproblems early Cumulative Value Time Planned Value (PV) Actual Costs (AC) Earned Value (EV) Today Is this project over/under budget? Is it ahead of/behind schedule?
  4. 4. Cost Management Key TermsCost Management Key Terms PV - Planned Value,PV - Planned Value, estimatedestimated value of the planned workvalue of the planned work EV – Earned Value,EV – Earned Value, estimatedestimated value of work donevalue of work done AC – Actual Cost, what you paidAC – Actual Cost, what you paid BAC – Budget at Completion, the budget for the total jobBAC – Budget at Completion, the budget for the total job EAC –Estimate at Completion, what is the total jobEAC –Estimate at Completion, what is the total job expected to cost?expected to cost? ETC – Estimate to Complete, forecasted costs to completeETC – Estimate to Complete, forecasted costs to complete jobjob VAC – Variance at Completion, how much over/underVAC – Variance at Completion, how much over/under budget do we expect to be?budget do we expect to be?
  5. 5. How Do We Manage Cost?How Do We Manage Cost? Three processesThree processes  Estimate CostsEstimate Costs  Determine BudgetDetermine Budget  Control CostsControl Costs Estimate Costs Determine Budget Control Costs
  6. 6. Estimate CostsEstimate Costs Enterprise Environmental Factors Organizational Process Assets Project Scope Statement Analogous estimating Determine resource cost rates Bottom up estimating Parametric estimating Project management software Vendor bid analysis Reserve analysis Cost of quality Inputs OutputsTools & Techniques Work Breakdown Structure WBS Dictionary Project Management Plan •Schedule Mgmt Pln •Staffing Mgmt Pln •Risk Register Activity Cost Estimates Activity Cost Estimates Supporting Detail Requested Changes Cost Management Plan Updates Estimate Costs Determine Budget Control Costs
  7. 7. Estimating MethodsEstimating Methods Analogous (Top Down) estimatingAnalogous (Top Down) estimating – Managers– Managers use expert judgment or similar project costsuse expert judgment or similar project costs [quick, less accurate][quick, less accurate] Bottom-Up estimatingBottom-Up estimating – People doing work– People doing work estimate based on WBS, rolled up into projectestimate based on WBS, rolled up into project estimate [slow, most accurate]estimate [slow, most accurate] Parametric estimatingParametric estimating – Use mathematical model– Use mathematical model (i.e. cost per sq ft). [accuracy varies](i.e. cost per sq ft). [accuracy varies] Two types:Two types: Regression analysis – based on analysis of multipleRegression analysis – based on analysis of multiple data pointsdata points Learning Curve – The first unit costs more than theLearning Curve – The first unit costs more than the 100100thth , forecasts efficiency gains, forecasts efficiency gains
  8. 8. Estimating MethodsEstimating Methods Vendor Bid AnalysisVendor Bid Analysis – Estimating using bids +– Estimating using bids + allowances for gaps in bid scope [slow, accuracyallowances for gaps in bid scope [slow, accuracy depends on gaps]depends on gaps] Reserve AnalysisReserve Analysis – Adding contingency to each– Adding contingency to each activity cost estimates as zero duration item [slow,activity cost estimates as zero duration item [slow, overstates cost]overstates cost]
  9. 9. Determine BudgetDetermine Budget Project Scope Statement Cost aggregation Reserve analysis Parametric estimating Funding limit reconciliationInputs Outputs Tools & Techniques Cost Baseline Project Funding Requirements Cost Management Plan Updates Requested Changes Work Breakdown Structure WBS Dictionary Activity Cost Estimates Activity Cost Estimates Supporting Detail Project Schedule Resource Calendars Contract Cost Management Plan Estimate Costs Determine Budget Control Costs
  10. 10. Determine BudgetDetermine Budget Budgeting is allocating costs to work packagesBudgeting is allocating costs to work packages to establish a cost baseline to measure projectto establish a cost baseline to measure project performanceperformance Remember Contingency items are for unplannedRemember Contingency items are for unplanned but required changes it is not to cover thingsbut required changes it is not to cover things such as:such as:  Price escalationPrice escalation  Scope & Quality ChangesScope & Quality Changes Funding Limit Reconciliation – Smoothing outFunding Limit Reconciliation – Smoothing out the project spend to meet managementthe project spend to meet management expectationsexpectations
  11. 11. Control CostsControl Costs Cost Baseline Project Funding Requirements Performance Reports Cost change control system Performance measurement analysis Forecasting Project performance reviews Project management software Variance management Inputs OutputsTools & Techniques Work Performance Information Approved Change Requests Project Management Plan Cost Estimate Updates Cost Baseline Updates Performance Measurements Forecasted Completion Requested Changes Recommended Corrective Actions Organizational Process Assets Updates Project Management Plan Updates Estimate Costs Determine Budget Control Costs
  12. 12. Earned ValueEarned Value Progress is compared against theProgress is compared against the baseline to determine whetherbaseline to determine whether project is ahead of or behind planproject is ahead of or behind plan Percent complete can be difficultPercent complete can be difficult to measure, some managers useto measure, some managers use rulesrules  50/50 Rule – Assumed 50%50/50 Rule – Assumed 50% complete when task started, finalcomplete when task started, final 50% at completion50% at completion  20/80 Rule – 20% at start20/80 Rule – 20% at start  0/100 Rule – No credit until complete0/100 Rule – No credit until complete Planned ValuePlanned Value (PV) – Budgeted(PV) – Budgeted CostCost Earned ValueEarned Value (EV) – Actual(EV) – Actual work completedwork completed Actual Cost (AC)Actual Cost (AC) – Costs incurred– Costs incurred Estimate toEstimate to Complete (ETC)Complete (ETC) – What’s Left– What’s Left Estimate atEstimate at Completion (EAC)Completion (EAC) – What final cost– What final cost will bewill be
  13. 13. EarnedEarned ValueValue GraphGraph Variance at Completion (VAC) Target Cost & Schedule Schedule Variance (Time) Planned Value (PV) Earned Value (EV)
  14. 14. Earned Value FormulasEarned Value Formulas NAMENAME FORMULAFORMULA NOTESNOTES Cost Variance (CV)Cost Variance (CV) EV-ACEV-AC Negative = Over budgetNegative = Over budget Positive = Under budgetPositive = Under budget Schedule VarianceSchedule Variance (SV)(SV) EV-PVEV-PV Negative = Behind ScheduleNegative = Behind Schedule Positive = Ahead of SchedulePositive = Ahead of Schedule Cost PerformanceCost Performance Index (CPI)Index (CPI) EV/ACEV/AC How much are we getting for everyHow much are we getting for every dollar we spend?dollar we spend? Schedule PerformSchedule Perform Index (SPI)Index (SPI) EV/PVEV/PV Progress as % against planProgress as % against plan Estimate to CompleteEstimate to Complete (ETC)(ETC) EAC-ACEAC-AC How much more do we have toHow much more do we have to spend?spend? Variance atVariance at Completion (VAC)Completion (VAC) BAC-EACBAC-EAC At the end of the day, how close willAt the end of the day, how close will we be to plan?we be to plan? Estimate atEstimate at Completion (EAC)Completion (EAC) See following slideSee following slide
  15. 15. Earned Value Formulas (Cont’d)Earned Value Formulas (Cont’d) NAMENAME FORMULAFORMULA NOTESNOTES Estimate atEstimate at Completion (EAC)Completion (EAC) BAC/CPIBAC/CPI Use if no variancesUse if no variances fromfrom BAC have occurredBAC have occurred AC+ATCAC+ATC Use when originalUse when original estimate was bad. Actualsestimate was bad. Actuals + New estimate+ New estimate AC+BAC-EVAC+BAC-EV Use when currentUse when current variances are not expectedvariances are not expected to be there in the futureto be there in the future AC+(BAC-EV)/CPIAC+(BAC-EV)/CPI Use when currentUse when current variances are expected tovariances are expected to continuecontinue
  16. 16. Tricks for Earned ValueTricks for Earned Value EV is always firstEV is always first Variance = EV minus somethingVariance = EV minus something Index = EV divided by somethingIndex = EV divided by something If the formula relates to cost use ACIf the formula relates to cost use AC If the formula relates to schedule use PVIf the formula relates to schedule use PV Interpreting results: negative is bad and positive is goodInterpreting results: negative is bad and positive is good Interpreting results: greater than one is good, less thanInterpreting results: greater than one is good, less than one is badone is bad PV AC ETC EAC BAC Project Start Current Status
  17. 17. Terms to RememberTerms to Remember Present ValuePresent Value Net Present Value (NPV)Net Present Value (NPV) Internal Rate of ReturnInternal Rate of Return (IRR)(IRR) Payback PeriodPayback Period Benefit Cost Ratio =Benefit Cost Ratio = BCR>1, Payback is greaterBCR>1, Payback is greater than the costthan the cost Opportunity CostOpportunity Cost Sunk CostSunk Cost Working CapitalWorking Capital Straight Line DepreciationStraight Line Depreciation Accelerated DepreciationAccelerated Depreciation  Double Declining BalanceDouble Declining Balance  Sum of Years DigitsSum of Years Digits Value Analysis (ValueValue Analysis (Value Engineering)Engineering) You won’t be calculating most of these numbers on the test, just remember the concepts for general questions

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