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Q. Explain Common coupling with example?
Common coupling: General coupling is when two modules share the same global data (example a global variable). Changing of the shared resource implies changing all the modules using it. Diagnosing the problems in structures with considerable common coupling is time consuming and difficult. Nevertheless this doesn't mean that the use of global data is necessarily bad. It doesn't mean that a software designer must be aware of potential consequences of common coupling and take special care to guard against them.
Differentiate between regression testing and re-testing - Re-testing: - It means testing a single defect that was just fixed. Only one test is performed here. - The ta
Encapsulation An object expresses the data and information it contains and supports a well described abstraction. Encapsulation leads to the separation of the interface and ex
Regression testing It is the re-execution of some subset of tests that have already been conducted to make sure the changes that have not been propagated unintended side effect
Describe the various types of restructuring techniques. (a) Code Restructuring: It is performed to yield a design that produces the similar function but with higher quality t
Define Data objects, attributes & relationship. Data object: Representation of any collective information that must be understood by software. It can be any external entity.
System evolution of life cycle process The lifetime of verge systems is too long. They must evolve to meet change requests. The evolution may be expensive. Existing sy
Requirements Analysis of SDLC Requirements describe "What" of a system. Objectives which are to be achieved in Software process development are requirements. In requirements a
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Mention some of the factors to be considered during System Modeling. Simplifications Assumptions Constraints
Explain incremental model? The incremental model is proposed by D.L PARNAS. It is basically executed by combining elements of linear sequential model and iterative prototyping
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