The following statement about the data flow diagram is incorrect in ( )
All possible data flows and conditions for the data flow should be depicted in the data flow diagram
B. The basic point of a data flow diagram is to describe "what to do" regardless of "how to do"
C. A data flow diagram is a logical model of a system
D. One of the main uses of data flow diagrams is as a tool for analysis and design
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The task of the requirements analysis phase is to determine ( )
A. Software development methods
B. Software development tools
C. Software development costs
D. Software development capabilities
The role of the software requirements specification does not include ( )
A. The basis for software acceptance
B. The basis of the software design
C. The basis of the software feasibility study
D. A common understanding between users and developers of what software does
The correct description in the following tasks related to the requirements analysis phase is ( )
A. To answer "What does the software have to do?" "
B. A software requirements statement is required
C. System analysts can use interviews, simple application specifications technology to obtain user needs
D. That's all right
The task of the software problem definition phase is ( )
A. Determine whether the system is worth developing
B. What are the specific functions of the system?
C. Identify the system's goals, size, and basic requirements
D. How exactly the system does
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