You are creating a model that shows how data moves through a system. Each function that modifies the data in any manner is identified, decomposed to smaller levels, and the system is completely described from start to storage.
What type of a modeling technique are you using in this scenario?
Correct Answer: B
Explanation
Data flow diagramming is a technique that shows how data moves through a system, from external entities, through processes, to data stores. Data flow diagrams can be used to model the current state or the desired state of a system, and to identify gaps or redundancies in data processing. Data flow diagrams can also be decomposed to lower levels of detail to show the sub-processes and data elements involved in each function.
Functional decomposition, work decomposition, and organization modeling are different techniques that can be used to break down a system, a project, or an organization into smaller components, but they do not focus on the data movement. References:
BABOK Guide, p. 10, 98-99
CBAP / CCBA Certified Business Analysis Study Guide, p. 240-241
Certified Business Analysis Professional (CBAP) | Coursera, Course 2, Week 2, Video: "Data Flow Diagrams"