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Why is maintenance of a software important?
The alteration of a software product, after delivery, to correct faults, to improve performance or other attributes, or to adapt the product to a changed environment.
Maintenance is a significant part of the software life-cycle. It is costly in manpower and resources, and one of the aims of software engineering is to decrease its cost.
The most significant problem during maintenance is the before correcting or modifying a program, the programmer must first understand it.
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
The process of testing an integrated hardware and software system to determine that the system meets its described requirements. Such testing might be conducted in both the develop
Four Different Phases of spiral model are: 1) Planning 2) Risk analysis 3) Development 4) Assessment
schema tools
APPLICATIONS SOFTWARE: As has been mentioned earlier, software may conveniently be divided into: systems software (i.e., programs designed to control the execution of other pr
differentiate between structured analysis and structured design
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Define effector process? The effector process is termed as a process that verifies itself. The effector process exists in specific criteria.
Explain in detail about Structural Modelling. Structural model contains a detail refinement of ERD, data flow model and control flow model. Creating an ERD. Examp
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