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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 is a process oriented model. ER diagram represent data at rest whereas DFD tracks the motion of data.
ERD doesn't provide any information regarding functionality of data. It has 3 main components - data entities, their relationships and their associated attributes.
The act of attempting to verify the cause of the symptoms of malfunctions noticed by testing or by frenzied user complaints.
Why is SRS document known as black box specification of a system
APPLICATIONS SOFTWARE: As has been mentioned earlier, software may conveniently be divided into: systems software (i.e., programs designed to control the execution of other pr
What is the advantage of using prototype software development model instead of waterfall model?
how to start building software
Modified ER diagram representing cardinalities When minimum cardinality of a relationship is one, then second entity is known as mandatory participant in the relationship. Ma
structured analysis
After users are authenticated, what measures can be employed in order to maintain security when users are away from their computers? 2. Discuss ways in which the use of strong au
What is Outputs? Ans) Products, services, or information supplied to meet end user requirements.
Why WinRunner may fail to identify an object on a GUI? WinRunner may fail to recognize an object in a GUI in below cases: - If it isn't a standard windows object - If the
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