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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.
explain coupling
Q. What is Boundary Value Analysis? Boundary Value Analysis: It is extensively recognized that input values at the extreme ends of input domain cause more errors in system. M
What is the difference between Print Preview and Layout Preview? Print Preview and Layout Preview When a report is observed in Print preview, it appears almost exactly as it
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Question: (a) Differentiate between application software and system software. (b) Mr. Smith would like to know which type of computer is more appropriate to process the inf
Define software prototyping. Software prototyping is explained as a rapid software development for validating the requirements.
Q. Define Reverse Engineering? What are the main objectives of reverse engineering? Ans: The reverse engineering is the procedure of generating representations that are imple
explain the data dictionery
What are the benefits of smoke testing? Integration risk is decreased. The quality of the end-product is better. Error diagnosis and correction are simplified. Assessment of pr
Testing conducted to classify a system or component at or beyond the limits of its described requirements.
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