1. Compare and contrast the purpose of and techniques used in drawing physical DFDs and logical DFDs. 2. “If we document a system with a systems flowchart, data flow diagrams, and E-R diagrams, we...

Answer1:
Characteristics of
Designing
Logical Physical
Model Depiction It state that operations of
business i.e., where and how
the company will operates
Its state that how the current
methods or systemic
operation of the business
Process representation It state that activities of the
business
It state that procedures of
manual work, program work
and modules of the program
Representation...