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Data Flow Diagrams (DFD)
It's a graphical representation of flow of data through a system. It pictures a system like a network of functional processes. The foundation of DFD is a data flow graph that pictorially represents transformation on data as demonstrated in Figure.
Advantage of microcomputer software packages: i) compilation and maintenance of reference and fact files; ii) compilation of current and retrospective bibliographies
System evolution of life cycle process The lifetime of verge systems is too long. They must evolve to meet change requests. The evolution may be expensive. Existing sy
Question: (a) The relationship between organisations and information technology is a complex one, and is made up of a number of mediating factors which must be considered prior
This case-study describes the requirements of an airline travel agency who want to develop a website to allow customers to make online bookings. The outline requirements are descri
What is Risk Assessment? Ans) A associated impact and its comprehensive evaluation of the risk
What is Path Coverage Testing? Ans) A test process satisfying coverage criteria that every logical path by the program is tested. Paths through the program often are grouped int
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Illustrate parameterization in QTP. - Parameterization - Passing values from external source into script. - The number of values passed can be single or multiple. - It he
Why testing is important with respect to software? A testing process focuses on logical internals of software ensuring that all statements have been tested and all are function
Define System Modeling? Explain the processes that serve requirements of the view under consideration. Shows the behaviour of the processes and the assumptions on which t
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