What is a top-down representation of a process called?

A top-down representation of a process is referred to as a functional decomposition diagram. This type of diagram breaks down a complex process into smaller, more manageable components, allowing analysts to better understand the structure and relationships within a system. The key concept is that it starts with a high-level overview that identifies the primary function, which is then dissected into finer details through successive levels of decomposition.

By employing functional decomposition diagrams, system analysts can efficiently organize information, facilitate discussions, and identify requirements or potential areas for improvement within a system. This method enhances clarity, making it easier to analyze or develop the system by focusing on individual functions systematically.

In contrast, other options like flowcharts provide a different representation format, focusing on the operational flow and sequence of tasks, while entity-relationship diagrams emphasize data relationships within databases. Systems flow diagrams illustrate the flow of data through various systems or processes, but they do not necessarily convey a hierarchical breakdown of functions. The functional decomposition diagram specifically excels in depicting the top-down approach to analyzing and designing systems.