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What does Level0 DFD represent?
Level0 DFD is known as 'fundamental system model' or 'context model'. In the context model the entire software system is shown by a single bubble with input and output shown by incoming and outgoing arrows.
Q. What is Equivalence class testing? Equivalence class testing is based on the partitioning the input domain of a program into a number of equivalence classes so that the test
In how many types requirements have been classified Requirements are classified in the below two types: i) Functional requirements: They define the factors such as I/O fo
main characteristics of software lease
Q. Realistic approach to the development of large-scale systems? There are a number of advantages of Spiral model that makes it a realistic approach to development of large-sca
What are the two levels of testing? i. Component testing Individual works are tested. Tests are derived from developer's experience. ii. System Testing The group o
Why is SRS also known as the blackbox specification of system ? Ans: SRS document is a contract among the development team and the customer. Once the SRS document is accepted
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
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Q Who is a Software Engineer? What is his role in software development process? Ans) A software engineer is responsible for the implementation and design of a variety of softwa
A newsagent shop employs several newspaper deliverers to hand-deliver the morning newspapers to customers' houses. The customers all live fairly close to the shop and the delivere
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