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Q. What is verification?
Ans. Verification is the procedure of determining whether the output of one phase of software development conforms to that of its previous phase whereas validation is the process of determining whether a completely developed system conforms to its requirements specification. Therefore while verification is concerned with phase containment of errors the aim of validation is that the final product be error free.
what are the main characteristics of software lease
State Lehman's First law. A program that is used in true world environment essentially must change or become progressively less useful in that environment.
Formal testing, usually conducted by the developer for the consumer, to demonstrate that the software meet its described requirements.
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Question: a) A firewall will be classified according to which layer of the OSI model the protection is at. Using this classification, explain the different types of firewalls.
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The activities of software maintenance Software maintenance is a broad activity that contains error correction, increasing of capabilities, deletion of obsolete capabilities an
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