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Modified ER diagram representing cardinalities
When minimum cardinality of a relationship is one, then second entity is known as mandatory participant in the relationship. Maximum cardinality is the maximum number of instances of second entity. Hence, modified ER diagram is demonstrated in Figure.
What are the various elements of data design? i. Data object - The data objects are identified and relationship between various data objects can be shown using ERD or data dict
Q. Define software testing. Explain various level of testing? Ans: Software testing- It is a process used to help identify the completeness, correctness and quality of develo
Aggregation between objects Aggregation among objects shows a relationship. It is a whole/part relationship. Aggregation might be implying containment.
What are the advantages and disadvantages of big-bang? Advantages: This approach is easy. Disadvantages: It is difficult to debug.It is not easy to isolate errors whereas te
What is Exception? Ans) An event that causes suspension of normal program implementation. Types contain addressing exception, operation exception, data exception, overflow excep
What is Defect Analysis? Ans) Using defects as data for regularly quality improvement. Defect analysis usually to classify defects into categories and recognize possible causes
What is Software failure? Software failure happens when the software does not do what the user wants to see.
Assuming that all the tables have been created as given in the relational schema, write SQL code to make the following changes in the structure of the tables: (i) Make the empl
What is Customer (end user)? Ans) The organization or individual, internal or external to the producing organization that takes the product.
what is waterfall model
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