【正文】 equencing FinishtoStart – Activity A must finish before Activity B can start A B StarttoStart – Activity A must start before Activity B can start A B Source: pmbok guide 2023 169。 2023 RobbinsGioia, Inc. 69 Activity Sequencing Identifying and documenting interactivity logical relationships Source: pmbok guide 2023 169。 2023 RobbinsGioia, Inc. 65 Activity Definition Inputs ? WBS ? Scope statement ? Historical information ? Constraints ? Assumptions ? Expert judgment Tools Techniques ? Deposition ? Templates Outputs ? Activity list ? Supporting detail ? WBS updates Source: pmbok guide 2023 169。 2023 RobbinsGioia, Inc. 61 PMP Preparation Training Time Management Chapter 6 Source: pmbok guide 2023 169。 2023 RobbinsGioia, Inc. 62 Time Management Activity Definition Activity Sequencing Activity Duration Estimating Schedule Development Schedule Control Processes required to ensure timely pletion of the project Source: pmbok guide 2023 169。 2023 RobbinsGioia, Inc. 66 Inputs ? WBS – Primary input to activity definition ? Scope statement – Project justification and project objectives ? Historical information – The activities that were actually required on previous, similar projects ? Constraints – Factors that will limit the PM team’s options ? Assumptions – Factors that, for planning purposes, will be considered to be true, real, or certain ? Expert judgment Activity Definition Source: pmbok guide 2023 169。 2023 RobbinsGioia, Inc. 610 Activity Sequencing Inputs ? Activity list ? Product description ? Mandatory dependencies ? Discretionary dependencies ? External dependencies ? Milestones Tools Techniques ? Precedence diagramming method (PDM) ? Arrow diagramming method (ADM) ? Conditional diagramming methods ? Network templates Outputs ? Project work diagram ? Activity list updates Source: pmbok guide 2023 169。 2023 RobbinsGioia, Inc. 614 Activity Sequencing Process Activity Sequencing FinishtoFinish – Activity A must finish before Activity B can finish A B StarttoFinish – Activity A must start before Activity B can finish A B Source: pmbok guide 2023 169。 2023 RobbinsGioia, Inc. 618 Activity Duration Estimating Process of taking information on project scope and resources and then developing durations for input to schedules ? Elapsed time (Delay) – Work periods between the finish of one activity and the start of another activity Source: pmbok guide 2023 169。 2023 RobbinsGioia, Inc. 622 Tools Techniques ? Expert judgment – Used with historical information ? Analogous estimates (Topdown estimating) – Uses duration of a previous, similar activity as the basis for the of estimate of a future activity ? Quantitatively based durations – Quantities to be performed for each specific work category defined by the engineering/design effort, multiplied by the productivity unit rate ? Reserve time (contingency) – An additional time frame, called time reserve, contingency, or buffer, that can be added to the activity duration or elsewhere in the schedule as recognition of schedule risk Activity Duration Estimating Source: pmbok guide 2023 169。 2023 RobbinsGioia, Inc. 626 Inputs ? Project work diagram ? Duration estimates ? Resource requirements ? Resource pool – Description of the available resources and the times they are available to work on the