Exam (elaborations)
Systems Analysis and Design - Chapter 5 questions and answers
- Module
- SYSTEM ANALYSIS AND DESIGN
- Institution
- Oxford University (OX)
Systems Analysis and Design - Chapter 5 questions and answers
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Systems Analysis and Design - Chapter5 questions and answers
what is a process model? - answer is a graphical way of representing how a business system
should operate. It illustrates the processes or activities that are performed and how data move
among them
what is data flow diagramming? (DFD) - answer is a technique that diagrams the business
processes and the data that pass among them.
The focus is mostly on the processes or activities that are performed
What are logical process models? - answer models that decribe a process, without suggesting
how they are conducted
what is a physical process model? - answer provide information that is needed to build the
system
process - answer is an acitvity or a function performed for some specific reason
data flow - answer a data flow is a single piece of data, or a logical collection of several pieces of
information
data store - answer is a collection of data that is stored in some way
external entity - answer is a person, org,unit, or system that is external to the system but still
interacts with it
Decomposition - answer breaking down DFDs to individual DFDs for further detail
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