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47 Cards in this Set
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Time Management (Knowledge Area)
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Processes:
(1) Plan Schedule Management (2) Define Activities (3) Sequence Activities (4) Estimate Activity Resources (5) Estimate Activity Durations (6) Develop Schedule (7) Control Schedule |
7 total, 6 Ps, 1 M&C PSM, DA, SA, EAR, EAD, DS, CS |
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CPM
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Critical Path Method - used to estimate minimum project duration & amount of scheduling flexibility - sequence of activities that represent longest path, zero total float
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CPM /Precedence Diagramming
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Float
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Formula: Late FInish - Early FInish
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CCM
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Critical Chain Method - Allows buffers on any project schedule path to account for limited resources and project uncertainties, resource-constrained critical path
Project Buffer - At end Feeding Buffer - placed on activities that feed critical chain |
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Plan Schedule Management (Process)
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Establishing policies, procedures, and documentation for how to manage the schedule
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Output: Schedule Management Plan |
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Schedule Management Plan (Output)
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Components: (1) Schedule Model Development - methodology & tool(2) Level of accuracy - acceptable range for duration estimates (3) Units of measure - defined for each resource (4) Org procedures links - provides framework (5) Schedule model maintenance - process for updates to schedule (6) Control thresholds - percentage deviations for monitoring performance (7) Rules of performance measurement - Earned Value Management (8) Reporting formats - format and frequency (9) Process descriptions - for each schedule management process |
Output of "Plan Schedule Management" |
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Define Activities (Process)
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Identifying and documenting specific actions to be performed to produce project deliverablesTools: Decomposition & Rolling wave planning, expert judgment
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Outputs: (1) Activity list (2) Activity attributes (3) Milestone list |
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Rolling Wave Planning (Tool)
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Iterative planning technique, near term work detailed, future work higher level
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Activity List (Output)
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Includes all schedule activities required on project, activity identifier, and scope
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Output of "Define Activities" |
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Activity Attributes (Output)
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Extended description - person responsible, activity type, location of work, etc
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Output of "Define Activities" |
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Milestone List (Output)
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List of milestones, zero durations, significant point or event in project
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Output of "Define Activities" |
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Sequence Activities (Process)
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Relationships among project activities to obtain greatest efficiency given all constraints
Tools: PDM, Dependency determination, leads & lags |
Outputs: (1)Project schedule network diagram (2) Project documents updates |
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PDM
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Precedence Diagramming Method - constructing a schedule model represented by nodes (Ex. AON)
4 types of dependencies (FS, FF, SS, SF) |
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FS
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Finish to Start - successor cannot start until predecessor has finished
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FF
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Finish to Finish - Successor cannot finish until predecessor has finished (Ex. Writing document, editing document)
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SS
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Start to Start - Successor cannot start until predecessor has started (Ex. Leveling concrete, pouring foundation)
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SF
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Start to Finish - Successor cannot finish until predecessor has started (Ex. Security guard shifts, hand off)
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AON
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Activity-on-Node - type of Project Schedule Network Diagram
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Dependency Determination (Tool)
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Mandatory (Hard) or Discretionary
(Preferred/Preferential/Soft) Internal or External |
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Lead
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Amount of time a successor can be advanced with respect to predecessor
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Lag
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Amount of time successor will be delayed with respect to a predecessor
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Project Schedule Network Diagrams (Output)
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Graphical representation of logical relationships/dependencies
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Output of "Sequence Activities" |
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Estimate Activity Resources (Process)
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Estimating type and quantities of material, human resources, equipment/supplies to perform each activity - more accurate cost and duration estimates
Tools: Alternative Analysis, Published estimating data, Bottom-up estimating |
Outputs: (1) Activity resource requirements (2) Resource breakdown structure |
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Resource Calendars
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Calendar that identifies working days and shifts on each specific resource availability
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Output from "Acquire Project Team" and "Conduct Procurements" |
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Activity Resource Requirements (Output)
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Identify types and quantities of resources required for each activity in a work package
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Output of "Estimate Activity Resources" |
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Resource Breakdown Structure (Output)
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Hierarchical representation of resources by category and type (labor, material, equipment, supplies)
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Output of "Estimate Activity Resources" |
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Estimate Activity Durations (Process)
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Estimating number of work periods needed to complete individual activities with estimated resources - major input to Develop Schedule process
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Output: Activity duration estimates |
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Expert Judgment (Tool)
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SME knowledge, historical information for estimates
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Analogous Estimating (Tool)
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Historical information, storytelling
3 lesses (Accurate, Time, Cost) |
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Parametric Estimating (Tool)
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Algorithm used to calculate cost or duration based on historical data and project parameters - unit of measure x amount or cost (ex. sq. footage in construction)
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Three Point Estimating (Tool)
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Program Evaluation and Review Technique (PERT) - 3 estimates to define approximate range for activity duration (P-M-O)
tP - Pessimistic, worst-case scenario tM - Most likely tO - Optimistic, best-case scenario |
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Expected Duration (tE)
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Triangular (Average) - (P+M+O)/3
Beta (Weighting) - (P+4M+O)/6 |
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Variance Estimate
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Formula: ((P-O)/6)squared
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Standard Deviation Estimate
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Formula:(P-O)/6
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Group Decision Making Techniques (Tool)
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Delphi - Anonymous voting
Nominal - Voting with ranking Dictatorship |
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Reserve Analysis
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Contingency Reserve (Time Reserves/Buffers) - Known Unknowns
Management Reserve - Unknown Unknowns, unforeseen work within scope, not in schedule baseline but part of project duration requirements |
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Activity Duration Estimates
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Do not include leads or lags, assessment of likely number of timer periods to complete activity (ex. 2 weeks +/- 2 days)
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Output of "Estimate Activity Durations" |
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Develop Schedule (Process)
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Iterative process - generate schedule model with planned dates for completing project activities
Tools: Schedule network analysis, CPM, CCM, Resource optimization techniques, modeling techniques, schedule compression |
Outputs: (1) Schedule baseline (2) Project Schedule (3) Schedule Data (4) Project Calendars |
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Resource Optimization (Tool)
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Resource leveling - move dates to accommodate resources
Resource smoothing - Move resources to meet project dates |
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Modeling Techniques (Tool)
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What-If Scenario Analysis - predict effect (positive or negative) on project.assists with contingency and response planning
Simulation - calculating multiple project durations with different sets of activities (Monte Carlo analysis) |
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Schedule Compression (Tool)
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Crashing - Add resources, increases cost
Fast Tracking - Parallel activities, increases risk |
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Schedule Baseline (Output)
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Approved version of schedule model, only changed through change control processes, used for basis of comparison to actual results
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Output of "Develop Schedule" |
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Project Schedule (Output)
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Schedule Presentations: Bar charts, milestone charts, Project schedule network diagrams (AON diagram)
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Output of "Develop Schedule" |
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Control Schedule (Process)
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Monitoring the status of project activities to update project progress and manage changes to schedule baseline - provides means to recognize deviation from plan/minimize risk
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Outputs: (1) Work Performance Information (2) Schedule forecasts (3) Change requests |
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Performance Reviews (Tool)
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Trend Analysis - Examines performance over time, improving or deteriorating
Critical Path Method (CPM) - Comparing progress along the critical path to determine schedule status Critical Chain Method (CCM) - Comparing amount of buffer remaining to amount of buffer needed Earned Value Management (EVM) - Schedule Variance (SV) and Schedule Performance Index (SPI) - assess magnitude of variation to original schedule baseline |
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Schedule Forecasts (Output)
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Estimates/predictions of conditions and events in project's future based on current knowledge at time of forecast, updated and reissued based on work performance info
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Output of "Control Schedule" |