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What does Level0 DFD represent?
Level0 DFD is known as 'fundamental system model' or 'context model'. In the context model the entire software system is shown by a single bubble with input and output shown by incoming and outgoing arrows.
What are the tools are mainly used for information gathering 1. Record review: A review of recorded documents of organisation is performed.Manuals procedures, forms and book
Q. Discuss the various strategies of design. Which design strategy is most popular and practical? Ans The most commonly utilized software design strategy involved decomposing
What are the conditions exists after performing validation testing? After performing the validation testing there exists two conditions. The function or performance characteris
Define Data objects, attributes & relationship. Data object: Representation of any collective information that must be understood by software. It can be any external entity.
A computer program is "user friendly", when it is designed with simple of use, as one of the primary purposes of its design.
Q. Describe incremental model? Define core product and detailed plan. Ans. The incremental model is proposed by D.L PARNAS. It is basically implemented by combining elements
A discrepancy among a computed, observed, or calculated value or condition and the true, specified, or theoretically correct value or condition; and
Define software process. Software process is explained as the structured set of activities that are need to develop the software system.
What are the characteristics of Software? Software is engineered or modified; it is not manufactured in the traditional sense. Software is free of wear out. Though the
Explain the waterfall model. Waterfall Model: The waterfall model is a sequential software development model, in which progress is seen as flowing steadily downwards (such a
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