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Define the method of Direct changeover
With this technique, old system is stopped and new system is used Straight away;
- This method can be disastrous if new system fails at any point
- Though, benefits are immediate and less time is wasted
- Costs are reduced (just one system in use so save on staff costs)
- Less likelihood of a malfunction as the new system would have been fully tested
Explain the types of software testing. Unit testing Integration testing System testing User-acceptance testing End-to-End testing Exception testing
Ask quewhat is code restructuringstion #Minimum 100 words accepted#
What is software maintenance Alters to the software are made in response to altered requirements but the fundamental structure of the software remains same.
State Lehman's First law A program that is used in real world environment of necessity must change or become progressively less useful in that environment.
QUESTION - Fault Tolerance (a) Three computers together provide a replicated service. The manufacturers claim that each computer has a mean time between failure of five days; a
What are the prototyping approaches in software process? i. Evolutionary prototyping - In this approach of system development, the initial prototype is prepared and it is then
Explain in detail about system testing. System testing Stress testing Performance testing Security testing
What is Walkthrough? Ans) Usually, a step-by-step simulation of the implementation of a procedure, as when walking by code, line by line, with an imagined set of inputs. The wor
Q. Describe system testing? Ans. System testing: System test are designed to validate a completely developed systems with a view to assuring that it meets its requirements
give me a graph of online shopping time line chart
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