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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
To develop software of lasting quality you have to lay down a solid architectural foundation that is resilient to change. Modelling is at the heart of the development of good quali
Define the method of Direct changeover With this technique, old system is stopped and new system is used Straight away; - This method can be disastrous if new system fails
Test Case A test case is a unit level document describing the inputs, steps of implementation and the expected result of each test condition for each requirement from the BRD.
Software Quality Assurance and Software Quality Control SQA verifies if the process that is followed to form a product is effective and does not have process defects while SQC
What are the two levels of testing? i. Component testing Individual components are tested. Tests are produced from developer's experience. ii. System Testing The group
Mention some of the Design principles. a. The design process should not suffer from tunnel vision. b. The design should not reinvent the wheel. c. The Design sh
What are the conditions exists after performing validation testing? After performing the validation testing there exists two conditions. The function or performance characteris
Why is SRS document known as black box specification of a system
What is Requirements Engineering Requirements engineering is systematic use of proven techniques, principles and language tools for cost effective analysis, on-going evaluatio
What does data modelling means? Data modelling is the first step in the analysis modelling. In data modelling the data objects are checked independently of processing. The data
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