問19
頻出度★☆☆
システムのライフサイクルを, 企画プロセス, 要件定義プロセス, 開発プロセス, 運用プロセス及び保守プロセスとしたとき, 企画プロセスのシステム化計画で明らかにする内容として, 適切なものはどれか。
平成29年度 春期 ITパスポート試験 問19
ストラテジ系システム企画 › システム化計画
This question's explanation and your answers so far.
解説
問 19
Incorrectア
The migration procedures for switching to the new operations and the methods for training users are handled in the migration and operation preparation stage (the operation process or the migration plan), after development is finished and the system is cut over to production. They are not what is clarified in the planning stage.
Incorrectイ
The business procedures to be realized, the input/output information, and the business rules are business requirements that define how the users side runs its operations; they are clarified in the business requirements definition of the requirements definition process, not delivered by the planning process.
Incorrectウ
The system functions and system configuration conditions necessary to realize the business requirements are the content of the system requirements definition, which takes the business requirements and fixes the specifications required of the system; it belongs to the development process, a stage downstream of the planning-stage system planning.
- エ
正解 In the planning process, the most upstream stage of the system life cycle, the system planning is formulated on the basis of the system concept. What is clarified here is: which operations and functions to systematize (the scope of systematization), the overall development schedule, and the costs and benefits used to judge whether the investment is worthwhile (cost-effectiveness). Option エ lists exactly these three points—the functions to be systematized, the development schedule, and the costs and benefits—so it is correct as a deliverable of the planning process.
ここがポイント
- The system planning of the planning process clarifies the scope of systematization (the functions to be systematized), the development schedule, and the cost-effectiveness.
- How the deliverables of each process are divided: planning = what to build / schedule / whether it pays off; requirements definition = business requirements (business procedures, rules); development (system requirements definition) = system functions and configuration; operation = migration, training.
用語