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Data Flow Diagrams (DFD)
It's a graphical representation of flow of data through a system. It pictures a system like a network of functional processes. The foundation of DFD is a data flow graph that pictorially represents transformation on data as demonstrated in Figure.
Write short notes on estimation models. Empirical estimation models can be used to complement decomposition techniques and present a potentially important approach in their own
give the example of data dictionary
What is meant by System Requirements? Place the system services and constraints in detail. Serves as a link between the system purchaser & the system developer.
ER model shows Static view.
Explain Error guessing? Ans) Test data selection method. The selection criterion is to pick values that seem likely to reason errors.
Question: (a) The relationship between organisations and information technology is a complex one, and is made up of a number of mediating factors which must be considered prior
What is the difference between Test Plan and Master Test Plan. Master Test Plan - i.) It is mandatory in all projects. ii.) It provides strategy to be used to test the
What are the phases of Problem solving Loop? Problem definition identifies the problem to be resolved. Technical development helps to resolve the Problem through various Te
Q. How Messages can be used in software engineering? Messages:- The interaction or communication between the different objects and classes is done by passing messages. The ob
The spiral model of software development Contains project risks evaluation during every iteration
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