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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.
You are to create a decision table to help you decide what to do for the day. If it is a weekday and it is not a holiday, then you go to work. However, if it is a weekday and it
Explain some of the limitations of testing. Though testing is an significant part of system development and leads to a valid, verified and efficient system, it also faces some
Q. What do you mean by Static analysers? Static analysers A static analyser operates from a pre-computed database of descriptive information derived from the source text of t
What are the principles of testing Below are some of the principles of testing: i) All tests must be performed according to user requirements. ii) Planning of tests m
What is SCM? Software Configuration Management is a set of activities carried out for identifying, organizing and controlling alters throughout the lifecycle of computer softwa
Enumerate the evolution of software The below Table summarises evolution of software: 1960s Infancy Machine Code 1970s Project Years
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
What are business process engineering tools? By modeling the strategic information needs of an organization, business process engineering tools give a "meta-model" from which e
we got the code for mobile app we need a document for that
What are functional and non-functional requirements?
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