Which of the following is () an error when drawing a data flow diagram?()
A. all data flowing into a process or out of a process
B. data flow on a child diagram that has only one end connected to a process, the other end is a point in space
C. connecting data stores and external entities directly to each other
D. placing more than nine processes on a data flow diagram
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A logical data flow diagram:()
A. includes types of programs, such as online or batch.
B. is a model of how the system will be implemented.
C. does not include any primitive processes.
D. is a model of how the business operates.
Which of the following is () an advantage of using a physical model?()
A. Transaction data stores are identified.
B. It is easier to create compared with the logical model.
C. The sequence of processes is identified.
D. Controls are included.
A CRUD matrix is used to show:()
A. places in the system where the data is inaccurate.
B. where records are updated, added, deleted or used.
C. which Web pages are placed on a secure server.
D. the partitioning of data flow diagrams in a client/server environment.
The process of creating a simple data flow diagram fragment for each unique system trigger is called:()
A. event modeling.
B. trigger analysis.
C. response cases.
D. CRUD model analysis.
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