令和8年度 ITパスポート試験問12

This question's explanation and your answers so far.

問12

頻出度★★★

A社は, 自社の業務プロセスの課題を抽出し, 見直しをするために流れ図を用いて業務プロセスを可視化することにした。A社が流れ図の作成において利用する記述様式として, 最も適切なものはどれか。

出典　令和8年度 ITパスポート試験問12

解説

問 12

Incorrectア
A CRUD diagram organizes, in a matrix table, the operations that each function (business task) performs on data from the four perspectives of Create, Read, Update, and Delete. It is a diagram for arranging the relationship between functions and data; it does not express the order of tasks or the business flow, so it is not suitable for a flowchart.
Incorrectイ
DMM (Diamond Mandala Matrix) is the notation used in EA (enterprise architecture) to draw a function structure diagram, showing business functions decomposed hierarchically. It does not represent the business flow (the order of steps), so it is not suited for depicting a business process flow in a sequenced manner.
Incorrectウ
An E-R diagram (Entity-Relationship Diagram) is a data modeling diagram that expresses data (entities) and the relationships among them, and is used for things such as database design. It is a diagram that represents the structure of data, not the flow of business processing.
エ
正解 The correct answer is “エ”, WFA (Work Flow Architecture). WFA is a notation style that expresses the flow and steps of work in business operations in sequence, and it is suited for visualizing a business process flow, that is, who performs which task in what order. Company A’s goal is to visualize the business process flow with a flowchart in order to identify and review issues, so WFA, which depicts the business flow itself, is the most appropriate.

ここがポイント

The notation style that visualizes the flow and steps of a business process is WFA (Work Flow Architecture). Distinguish the purposes of each diagram: WFA = business flow, CRUD diagram = operational relationship between functions and data, E-R diagram = data structure, DMM = hierarchical decomposition of business functions (function structure diagram).
From the keyword “visualize business processes with a flowchart,” choose WFA, which represents the flow of tasks, rather than the E-R diagram, which represents data structure.

用語

解答問12エ