6.1 Overview
Project schedule management requires 7 processes, specifically:
(1) Planning progress management
(2) Define the activity
(3) Arrange the order of activities
(4) Estimate the sequence of activities
(5) Estimate activity duration
(6) Make progress plan
(7) Control progress
6.1.1 The meaning of project schedule management
It is to draw up a reasonable and economical progress plan within the specified time. During the implementation process, the police will check the actual progress. If there is any deviation, take necessary remedial measures or adjust or modify the original plan in time until the project is completed.
6.1.2 The role of project schedule management
Only by formulating a more detailed and operable project schedule plan can the management of the entire project be arranged as a whole, so that all aspects of the project can be carried out in an orderly manner.
6.2 Project schedule management process
6.2.1 Planning schedule management
1. Planning schedule management: input
1) Project management plan:
(1) Scope benchmark: including project scope statement, WBS and WBS dictionary. Can be used to define activities, duration estimation and schedule management
(2) Other information: the schedule can be formulated based on other information in the project management plan
2) Project Charter
3) Organizational process assets: Organizational assets that affect the planning schedule management process include: available monitoring and reporting tools; historical information; schedule control tools; existing, formal and informal, policies, procedures and Guidelines; Templates; Project Closure Guidelines; Change Control Procedures; Risk Control Procedures;
4) Enterprise environmental factors: organizational culture and structure that can affect schedule management; resource availability and skills that may affect scheduling; project management software that provides scheduling tools; business information released; work authorization systems in the organization;
2. Planning progress management: output
1) Project management plan:
(1) Project schedule model specification
(2) Accuracy
(3) Unit of measurement
(4) Organization program link
(5) Project schedule model maintenance
(6) Control critical value
(7) Performance measurement rules
(8) Report format
(9) Process description
6.2.2 Define activities
1. Define the activity: input
1) Progress management plan
2) Range benchmark
3) Organizational Process Assets
4) Business environment factors
2. Define the activity: output
1) Activity List
2) Activity attributes
3) Milestone List
6.2.3 Sequencing activities
1. Sorting activity order: input
1) Progress management plan
2) Activity List
3) Activity attributes
4) Milestone List
5) Business environment factors
6) Project scope statement
2. Sorting activity order: output
1) Project progress network diagram
2) Project document update: activity list, activity attributes, milestone list, risk register
6.2.4 Estimating Activity Resources
It is the process of estimating the types and quantities of dowries, personnel, equipment or supplies required to perform various activities, and its function is to clarify the types, quantities and characteristics of resources required to complete the activities
1. Estimate activity resources: input
1) Progress management plan
2) Activity List
3) Activity attributes
4) Resource Calendar
5) Risk Register
6) Activity cost estimation
7) Business environment factors
8) Organizational Process Assets
2. Estimate Resource Activity: Output:
1) Activity resource requirements
2) Resource breakdown structure
3) Project file update: activity list, activity properties, resource calendar
6.2.5 Estimating activity duration
Based on resource estimation results, the process of estimating the number of work periods required to complete a single activity is to determine the amount of time required for each activity and provide the main input for the process of specifying the schedule. Based on information including: active scope of work, required resource types, estimated resource quantities, and resource calendars.
1. Estimate activity duration: enter
1) Progress management plan
2) and activity list
3) Activity attributes
4) Activity resource requirements
5) Resource Calendar
6) Project scope statement
7) Risk Register
8) Resource breakdown structure
9) Business environment factors
10) Organizational Process Assets
2. Estimate activity duration: output
1) Activity Duration Estimation
6.2.6 Develop schedule
It is the process of analyzing the sequence of activities, duration, resource requirements and schedule constraints, and creating a project schedule model. The main use of this process is to bring time, duration, resources, resource availability and logical relationships into the schedule planning tool, so that the schedule A schedule model that includes planned dates for individual project activities.
1. Specify the schedule: input
1) Progress management plan
2) Activity List
3) Activity attributes
4) Project progress network diagram
5) Activity resource requirements
6) Resource Calendar
7) Activity Duration Estimation
8) Project scope statement
9) Risk Register
10) Assignment of project personnel
11) Resource breakdown structure
12) Business environment factors
13) Organizational Process Assets
2. Specify the schedule: output
1) Progress benchmark
2) Project schedule plan: bar diagram, milestone diagram, project progress network diagram [P265 view diagram]
3) Progress data
4) Project Calendar
5) Project management plan update
6) Project file update
6.2.7 Control progress
1. Control progress: input
1) Project management plan
2) Project schedule
3) Job performance data
4) Project Calendar
5) Progress data
6) Organizational Process Assets
2. Control progress: output
1) Job performance information
2) Progress forecast
3) Change Request
4) Project management plan update
5) Project file update
6) Organizational Process Asset Updates
6.3 Techniques and tools for project schedule management
6.3.1 Estimates of effort and duration
1. Dephi method: the most popular expert evaluation technique
2. Analogy estimation method
3. Parameter estimation method
4. Stored value analysis
6.3.2 Techniques and tools for sequencing project activities
1. Determine dependencies
(1) Mandatory dependencies
(2) Selective dependencies
(3) External dependencies
(4) Internal dependencies
2. Leading map method
3. Cutting line diagram method
4. Advance and lag
6.3.3 Techniques and tools for developing project schedules
1. Specify the project planning steps:
(1) Project description
(2) Project decomposition and activity definition
(3) Job Description
(4) Project organization and assignment of work responsibilities
(5) Job sorting
(6) Calculate workload
(7) Estimated duration of work
(8) Draw a network diagram
(9) Schedule
2. Critical path method
3. Critical chain method
4. Resource optimization technology
5. Progress compression
6. Plan review technology
6.3.4 Project schedule adjustment method
1. Analyze progress deviation
(1) Analyze whether the work that produces the schedule deviation is a key activity
(2) Analyze whether the progress deviation is greater than the total time difference
(3) Analyze whether the progress deviation is greater than the free time difference
2. Adjustment of project schedule
(1) Key activity adjustment method
(2) Non-key activity adjustment method
(3) Increase or decrease work item method
(4) Resource adjustment method