Project Scope Management Back

1. Definition

• Scope refers to all the work involved in creating the products of the project and the processes used to create them.
• A deliverable is a product produced as part of a project, such as hardware or software, planning documents, or meeting minutes(會議紀要)
• Project scope management includes the processes involved in defining and controlling what is or is not included in a project

2. Processes

1. Plan scope management
   • To use expert judgment to develop the scope management plan.
2. Collect requirements
   • To use expert judgment to develop the requirements management plan.
   • For some IT projects, it is helpful to divide requirements development into categories called elicitation(抽出), analysis, specification, and validation.
   • It is important to use an iterative(迭代的) approach to defining requirements since they are often unclear early in a project.
   • A requirements traceability matrix (RTM, 需求追溯模型) is a table that lists requirements, various attributes of each requirement, and the status of the requirements to ensure that all requirements are addressed.
3. Define scope
   • Project scope statements should include at least a product scope description, product user acceptance criteria(用戶接受標準), and detailed information on all project deliverables.
4. Create WBS
   • A Work breakdown structure(WBS) is a deliverable-oriented grouping of the work involved in a project that defines the total scope of the project.
   • Decomposition(分解) is subdividing(細分) project deliverables into smaller pieces.
   • A work package(工作包) is a task at the lowest level of the WBS.
   • The scope baseline includes the approved project scope statement and its associated WBS and WBS dictionary.
5. Validate scope
   • Scope validation involves formal acceptance of the completed project deliverables. (Acceptance is often achieved by a customer inspection and then sign-off on key deliverables)
6. Control scope
   • Scope control involves controlling changes to the project scope.
   • Variance is the difference between planned and actual performance.

2. Cost of correcting

3. Approaches to develope WBS

• Analog approach(類比法): Review WBSs of similar projects and tailor to(適應) your project.
• Top-down approach(自上而下法): Start with the largest items of the project and break them down.
• Bottom-up approach(自底向上法): Start with the specific tasks and roll them up.
• Mind-mapping approach: a technique that uses branches radiating out(分流) from a core idea to structure thoughts and ideas.

4. WBS Dictionary

• A WBS dictionary is a document that describes detailed information about each WBS item.

5 Q&A

• What involves defining and documenting the features and functions of the products produced during the project as well as the processes used for creating them?
  • Collecting requirements
  • Controlling scope
  • Defining scope
  • Validating scope

answer: Collecting requirements.

• What documents how project needs will be analyzed, documented, and managed.
  • requirements traceability matrix
  • WBS
  • requirements management plan
  • project scope statement

answer: requirements management plan.

• Generating ideas by comparing specific project practices or product characteristics to those of other projects or products inside or outside the performing organization is known as what?
  • variance
  • prototyping
  • benchmarking
  • decomposition

answer: benchmarking.

• Which is a deliverable-oriented grouping of the work involved in a project that defines the total scope of the project?
  • project charter
  • project scope statement
  • business case
  • work breakdown structure

answer: WBS.

• Which should list and describe all of the deliverables required for the project?
  • project charter
  • WBS
  • scope statement
  • Gantt chart

answer: scope statement.

• What refers to the process of developing a working replica of the system or some aspect of the system?
  • Prototyping
  • Decomposition
  • Variance
  • Use case modeling

answer: Prototyping.

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