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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.
finds the c++ of resistance in series and parallel
What are the fundamental activities of a software process? Specification Validation Design and implementation Evolution
Software faults are unseen programming errors. Software faults are errors in the correctness of the semantics of computer programs.
Define Data Dictionary. The data dictionary is defined as an organized collection of all the data elements of the system with accurate and rigorous definitions so that user and
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
What does Verification represent? Verification shows the set of activities that are carried out to confirm that the software correctly executes the specific functionality.
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Testing conducted to consider a system or component in its operational environment. Contrast with development, testing,; testing, acceptance;
What does modality in data modeling indicates? Modality shows whether or not a particular data object must participate in the relationship.
The "user guide" is the similar as the user manual. The user guide is a document that shows information essential to employ a system or component to get the desired results. Typica
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