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Write short notes on empirical estimation models.
Estimation model for computer software uses empirically derived formulas to expect effort as a function of line of codes (LOC) and function points (FP). The values of LOC and FP estimated are plugged into estimation model. The empirical data that support most guess models are derived from a limited sample of projects. So out comes obtained from models should be used judiciously. The model must be tested and compared with actual and assumed data
Explain about the E-R Diagram Entity-relationship (E-R) diagram is detailed logical representation of data for an organisation. It is data oriented model of a system while DFD
Q. Describe design walk throughs and critical design review. Ans. A design walkthrough is a excellence practice that allows designers to acquire an early validation of desi
Q. Explain about non-functional requirement for a software ? Ans) Nonfunctional requirements are the basic characteristics of the system which will not be expressed as function
Importance of function point: This is independent of the languages tools, or methodology used for execution. They can be estimated from requirement specification or desig
Determine the different steps of Structured Requirements Definition Step 1: Make a user level data flow diagram. This step is meant for gathering requirements with intera
Errors from previous stage Errors passed through Amplified errors Newly generated errors Errors passed to next stage Testing phase of project-A 35 35 0 5 20 Testing phase of Projec
developer
what are draw backs or disadvantages of waterfall model
patterns
Describe Operational Testing? Ans) Testing done by the end user on software in its normal operating environment.
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