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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.
What is prototyping approaches in software process? i. Evolutionary prototyping - In this approach of system development, the initial prototype is prepared and it is then refin
What are the two levels of testing? i. Component testing Individual components are tested. Tests are derived from developer' s experience. ii. System Testing The group
Define software reliability. Software reliability is the probability that software will give failure-free operation in a fixed environment for a fixed interval of time. Probabi
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
explain levels of transparency
Q. Describe about Unit Testing? Unit Testing: The unit testing is completed to test the individual module of the software. Test cases are designed to test the program functiona
What is Operational Requirements? Ans) Qualitative and quantitative parameters that states the desired operational capabilities of a system and serve as a basis for determining
What are the benefits of evolutionary prototyping? i. Fast delivery of the working system. ii. User is included while developing the system. iii. More useful system can b
What are the common activities in design process? i. System structuring - The system is subdivided into principle subsystems components and communications among these subsy
Attributes Attribute is a characteristic or property of an entity which is of interest to the organisation. It's represented by oval shaped box with name of attribute writt
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