問46
頻出度★★★
プロジェクトの成果物の作成作業を階層的に分解したものはどれか。
平成29年度 秋期 ITパスポート試験 問46
マネジメント系プロジェクトマネジメント › プロジェクトマネジメント
This question's explanation and your answers so far.
解説
問 46
Incorrectア
EVM (Earned Value Management) converts the earned value (completed work) into a monetary amount and compares the plan, the actual, and the earned value to quantitatively manage the progress and cost status of a project. It is a technique for progress and cost management, not something obtained by hierarchically decomposing work, so it is wrong.
Incorrectイ
An RFP (Request for Proposal) is a document in which the ordering party presents its requirements, conditions, and so on in order to ask vendors for concrete proposals for a system or service. It is a request document used in the procurement stage and has nothing to do with the hierarchical decomposition of work, so it is wrong.
Incorrectウ
An SLA (Service Level Agreement) is an agreement between a service provider and a user that sets the service quality level (such as availability and response time) as numerical targets. It concerns quality assurance of operational services, not something obtained by hierarchically decomposing work, so it is wrong.
- エ
正解 The correct answer is エ, “WBS”. WBS (Work Breakdown Structure) organizes the deliverables that a project must produce together with the work to create them, by breaking them down step by step and hierarchically from large units into small, manageable pieces of work (work packages). The question's description, “the hierarchical decomposition of the work to create the deliverables”, matches the definition of WBS exactly. Creating a WBS makes the scope (range of work) fully visible with no omissions, and becomes the foundation for assigning schedule, cost, and responsibilities.
ここがポイント
- WBS (Work Breakdown Structure) = a method that breaks down a project's deliverables and the work to create them hierarchically from large to small and organizes the scope with no omissions; it is the basis for schedule and cost estimation.
- Sorting out easily confused abbreviations: EVM = a method for quantitatively managing progress/cost, RFP = a request for proposal (procurement), SLA = an agreement on the service quality level. Clearly distinguish “decomposition = WBS”.
用語