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Cardinality & Optionally
Cardinality represents the relationship between two entities. Consider one to many relationship between two entities -student andclass. Here cardinality of a relationship is the number of instances of entity student which can be associated with each instance of entity class. This is demonstrated in Figure.
Write definition of state transition diagram? State transition diagram is mainly a collection of states and events. Due to the events the system has to change its state. It als
What is configuration Management? Software Configuration management (SCM) is the task of tracking and controlling alters in the software. Configuration management practices con
Why software change occurs? Software change occurs because of the following reasons. New requirements appear when the software is used. The business atmosphere changes. E
effects of nativity in requirements specification
Explain Control Structure Testing Ans) Due to basis path testing alone is insufficient, other methods should be utilized. Condition testing can be utilized to design test cas
Q. Show the cost drivers used in COCOMO model? A variety of attributes of cost drivers used in COCOMO model are: 1. Physical attributes : These are worried with required
i want a complete example
What is Requirements Engineering Requirements engineering is systematic use of proven techniques, principles and language tools for cost effective analysis, on-going evaluatio
normalization Explain its forms in brief
What does modality in data modeling indicates? Modality shows whether or not a particular data object must participate in the relationship.
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