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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 bubb
What is Requirements Engineering Requirements engineering is systematic use of proven techniques, principles and language tools for cost effective analysis, on-going evaluatio
Throw-away prototyping Objective: The principal objective of this model is to validate or to derive the system needs. It is developed to decrease requirement risks.
Installation testing is testing full, partial, upgrade, or install/uninstall processes. The installation test for a release is conducted with the aim of demonstrating production re
Describe design walk throughs A design walkthrough is a quality practice that allows designers to obtain an early validation of design decisions related to the development and t
How does the risk factor affect the spiral model of software development? Ans: Risk Analysis phase is the most significant part of "Spiral Model". In this phase all possible (a
Define Fan-in & Fan-out. Fan-out - A measure of the number of modules that are directly controlled by another module. Fan-in- Shows how many modules directly control a give
What is software engineering? Software engineering is a discipline in which theories, process and tools are applied to develop professional software.
Common coupling: Common coupling is when two modules share the similar global data (e.g. a global variable). Changing the shared resource implies changing all the modules using it
Productivity Productivity refers to metrics and calculates of output from production processes, per unit of input. Productivity P may be conceived of as a metrics of the techni
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