システム設計者は、プロジェクトの初期段階でビジネス アナリスト (BA) と連携して、新しいトランザクション ベースのシステムを実装しています。システム設計者は、システムに入力される情報の種類、サポートされるプロセス、および情報が保存される場所を示すビジュアルが必要です。どのようなタイプの図が設計者のニーズを満たしますか?
正解:B
The type of diagram that meets the designers' needs of having a visual that illustrates the type of information that will be input in the system, the processes it will support, and the location where it will be stored is a data flow diagram. A data flow diagram is a graphical representation of the sources, destinations, flows, and processes of data within a system or solution. A data flow diagram can help to understand how data is created, used, stored, and changed by the system or solution.
The other options are incorrect because:
Option A is incorrect because a use case diagram is not a type of diagram that meets the designers' needs of having a visual that illustrates the type of information that will be input in the system, the processes it will support, and the location where it will be stored, but a type of diagram that shows the actors, use cases, and relationships of a system or solution. A use case diagram can help to define and communicate the functional requirements and scope of the system or solution.
Option C is incorrect because an activity flow diagram is not a type of diagram that meets the designers' needs of having a visual that illustrates the type of information that will be input in the system, the processes it will support, and the location where it will be stored, but a type of diagram that shows the inputs, outputs, triggers, and outcomes of activities within a system or solution. An activity flow diagram can help to understand how activities are performed and sequenced by the system or solution.
Option D is incorrect because a state model diagram is not a type of diagram that meets the designers' needs of having a visual that illustrates the type of information that will be input in the system, the processes it will support, and the location where it will be stored, but a type of diagram that shows the states, transitions, and actions of an entity or an object within a system or solution. A state model diagram can help to understand how an entity or an object changes its state or behavior in response to events or conditions.
References:
BABOK Guide v3, section 10.12: Data Flow Diagrams
CCBA Exam Questions, question 33