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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.
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what is meant by gantt chart who gave the name who is the founder
Explain Walk-through? Ans) A walk-through (in software QA) is a casual meeting for evaluation or informational purposes. A walk-through is also a method at an abstract level. It
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How can we know about to divide numbers from total error from which half passed through error and half passed to amplified and how to generate defect efficiency?
Data validity is the reasonableness and correctness of data.
What is verification? Verification is the process of determining whether the output of single phase of software development conforms to that of its last phase, whereas vali
What is the advantage of using prototype software development model instead of waterfall model? The waterfall model: This is the classic SDLC model, with a sequential and line
Explain how to define Severity Rating in your project. Severity rating is a combination of three factors: - The frequency of the problem occurrence. It could be common / ra
Explain Error guessing? Ans) Test data selection method. The selection criterion is to pick values that seem likely to reason errors.
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