PMP® Formula Pocket GuidePrint it - Fold it - Study wherever you go.Visit www.pmprepcast.com for more PMP resources. Pleas...
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Pmp formula pocket guide

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Transcript of "Pmp formula pocket guide"

  1. 1. PMP® Formula Pocket GuidePrint it - Fold it - Study wherever you go.Visit www.pmprepcast.com for more PMP resources. Please see disclaimer on the PMP Formula Study Guide.© 2008 ScopeCreep Project Management Consultants. All rights reserved. Version 1.1Earned ValueCV = EV - ACCPI = EV / ACSV = EV - PVSPI = EV / PVEAC ‘no variances’ = BAC / CPIEAC ‘fundamentally flawed’ = AC + ETCEAC ‘atypical’ = AC + BAC - EVEAC ‘typical’ = AC + ((BAC - EV) / CPI)ETC = EAC - ACETC ‘atypical’ = BAC - EVETC ‘typical’ = (BAC - EV) / CPIETC ‘flawed’ = new estimatePercent Complete = EV / BAC * 100VAC = BAC - EACEV = % complete * BACPERTPERT 3-point = (Pessimistic+(4*Most Likely)+Optimistic)/6PERT σ = (Pessimistic - Optimistic) / 6PERT Activity Variance = ((Pessimistic - Optimistic) / 6)^2PERT Variance all activities = √sum((Pessimistic - Optimistic) / 6)^2Network DiagramActivity Duration = EF - ES + 1 or Activity Duration = LF - LS + 1Total Float = LS - ES or Total Float = LF – EFFree Float = ES of Following - ES of Present - DUR of PresentEF = ES + duration - 1ES = EF of predecessor + 1LF = LS of successor - 1LS = LF - duration + 1Project SelectionPV = FV / (1+r)^nFV = PV * (1+r)^nNPV = Formula not required. Select biggest number.ROI = Formula not required. Select biggest number.IRR = Formula not required. Select biggest number.Payback Period = Add up the projected cash inflow minus expensesuntil you reach the initial investment.BCR = Benefit / CostCBR = Cost / BenefitOpportunity Cost = The value of the project not chosen.CommunicationsCommunication Channels = n * (n-1) / 2ProbabilityEMV = Probability * Impact in currencyProcurementPTA = ((Ceiling Price - Target Price) / Buyers Share Ratio) + TargetCostDepreciationStraight-line Depreciation:Depr. Expense = Asset Cost / Useful LifeDepr. Rate = 100% / Useful LifeDouble Declining Balance Method:Depr. Rate = 2 * (100% / Useful Life)Depr. Expense = Depreciation Rate * Book Value at Beginning of YearBook Value = Book Value at beginning of year - Depreciation ExpenseSum-of-Years Digits Method:Sum of digits = Useful Life + (Useful Life - 1) + (Useful Life - 2) + etc.Depr. rate = fraction of years left and sum of the digits (i.e. 4/15th)Mathematical BasicsAverage (Mean) = Sum of all members divided by the number of items.Median = Arrange values from lowest value to highest. Pick the middleone. If there is an even number of values, calculate the mean of thetwo middle values.Mode = Find the value in a data set that occurs most often.Values1 sigma = 68.26%2 sigma = 95.46%3 sigma = 99.73%6 sigma = 99.99%Control Limits = 3 sigma from meanControl Specifications = Defined by customer; looser thanthe control limitsOrder of Magnitude estimate = -25% to +75%Preliminary estimate = -15% to + 50%Budget estimate = -10% to +25%Definitive estimate = -5% to +10%Final estimate = 0%Float on the critical path = 0 daysPareto Diagram = 80/20Time a PM spends communicating = 90%Crashing a project = Crash least expensive tasks on criticalpath.JIT inventory = 0% (or very close to 0%.)Minus 100 = (100) or -100AcronymsAC Actual CostBAC Budget at CompletionBCR Benefit Cost RatioCBR Cost Benefit RatioCPI Cost Performance IndexCV Cost VarianceDUR DurationEAC Estimate at CompletionEF Early FinishEMV Expected Monetary ValueES Early StartETC Estimate to CompleteEV Earned ValueFV Future ValueIRR Internal Rate of ReturnLF Late FinishLS Late StartNPV Net Present ValuePERT Program Evaluation and Review TechniquePTA Point of Total AssumptionPV Planned ValuePV Present ValueROI Return on InvestmentSPI Schedule Performance IndexSV Schedule VarianceVAC Variance at Completionσ Sigma / Standard Deviation^ “To the power of” (2^3 = 2*2*2 = 8)

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