ECBA IIBA Entry Certificate in Business Analysis (ECBA) Free Practice Exam Questions (2026 Updated)

Business Analysts (BAs) commonly use a checklist during requirements verification to ensure that all requirements are consistent, complete, coherent, and testable. This checklist typically includes a standard set of quality elements that the requirements must adhere to. The use of a checklist helps BAs to systematically verify each requirement against these quality criteria. References: The BABOK Guide lists 8 characteristics of requirements quality: cohesive, complete, consistent, correct, feasible, modifiable, unambiguous, and testable. These characteristics form the basis of the standard quality elements included in a verification checklist1.

A data flow diagram illustrates the movement and transformation of data between externals (entities) and processes. The output from one external or process is the input to another. The data flow diagram also illustrates the temporary or permanent repositories (referred to as data stores or terminators) where data is stored within a system or an organization. The data defined should be described in a data dictionary.