Question

____ is the process of drawing a series of increasingly detailed DFDs, until all functional primitives are identified.

a. Leveling
b. Indexingc. Balancing
d. Exploding

Answer 1

a. Leveling

Step-by-step explanation:

• Leveling is also called decomposing.
• It is a method to depict more detail in lower-level Data Flow Diagrams
• It is the technique to expand or decompose DFDs into more details or levels to extract more information and identify all functional primitives until no further detail is required.
• An information system can be comprised of multiple processes. Leveling partitions each process into sub-processes which identifies more details about the process with each level.
• 0-level DFD: it starts with context diagram which depicts the whole system as a single process e.g. Grading system.
• 1-level DFD: the context diagram is decomposed in this level. This means a single process is expanded into multiple processes which extracts more details about a process of a system.
• 2- level DFD: this level decomposes the the process of level 1 going into further details.
• This decomposition and expansion continues until no further details are required and all functional primitives are identified.