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Q. Why is maintenance of a software important? Discuss some of the problems that are faced during maintenance of software.
Ans: The modification of a software product subsequent to delivery to correct faults to improve performance or other attributes or to adapt the product to a changed environment.
Maintenance is a vital part of the software life-cycle. It is expensive in manpower as well as resources and one of the aims of software engineering is to reduce its cost.
The most vital problem during maintenance is the before correcting or modifying a program and the programmer must first understand it.
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
Explain Error guessing? Ans) Test data selection method. The selection criterion is to pick values that seem likely to reason errors.
Question: (a) Document the information input and output for the events mentioned in the case study on the basis of facts provided. (b) Comment on the fact that barely any
Repeated inheritance If a class inherits more than once from the same class then it is referred to as repeated inheritance.
Q. Resource usage with reference to software reliability models? Resource usage: It is linearly proportional to implementation time t and mean failures experienced μ. Let Xr
Question: (a) Consider that every software failure can be classified as either • Syntactic, • Semantic, • System crash. Suppose additionally that every system crash fa
What does Data abstraction contains? A Data abstraction is a named collection of data that defines a data object Eg: door Attributes: door type, Opening mechanism, Swing di
Discuss about RAD Model Rapid Application Development Model is the one type of incremental model. Gains the high speed development utilising component based construction.
Q. Differentiate between failures and faults? Ans. Failure: -Failure is the disappearance of external results of program operation from requirements. Consequently failure is
What is V- Diagram (model)? Ans) A diagram that imagine the order of testing activities and their corresponding phases of growth
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