問22
頻出度★☆☆
業務パッケージを活用したシステム化を検討している。情報システムのライフサイクルを, システム化計画プロセス, 要件定義プロセス, 開発プロセス, 保守プロセスに分けたとき, システム化計画プロセスで実施する作業として, 最も適切なものはどれか。
令和3年度 ITパスポート試験 問22
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 22
- ア
正解 The system planning process (planning process) sits at the very top of the information system life cycle. It is the stage where you conceive and plan what kind of system to build and by what means to realize it. In this question, where the use of a business application package is being considered, the task that belongs to this stage is to first “compare and evaluate several business application packages from the perspectives of function, performance, price, and so on, judge their cost-effectiveness, and decide whether to adopt them”. Therefore “ア” is the most appropriate. Only after this evaluation result is taken into account does the process move on to the subsequent requirements definition, development, and maintenance.
Incorrectイ
Identifying the parts that the standard functions of the business application package cannot cover and deciding the scope of system functions that require additional development is a task of the “requirements definition process”. It is the stage where, after the package to adopt has been decided, you analyze the gap (fit & gap) against the requirements to be realized and then decide, so it is not a task of the planning process.
Incorrectウ
Analyzing and handling failures that occur during system operation is a task of the “maintenance process”. It is an activity for keeping a system in stable, continued use after it has gone live, and it sits at the very bottom of the life cycle, so it differs from the planning process at the very top.
Incorrectエ
Setting the parameters required in the business application package to realize the system functions corresponds to the “development process”. It is a task of the stage where the actual system is built after adoption and requirements have been finalized, and it is not something done in the planning process.
ここがポイント
- The information system life cycle proceeds in the order planning (system planning) → requirements definition → development → maintenance, and the question asks you to distinguish and understand the tasks performed in each process.
- In the system planning process, the business application package is evaluated from the perspectives of function, performance, price, and cost-effectiveness, and the adoption decision and the means of realization are conceived and decided.
用語