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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 Respiratory quotient? Ans) Respiratory quotient is the ratio among the carbon-dioxide used in photosynthesis to the quantity of oxygen liberated in respiration.
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
Peripheral devices are irrelevant to the computer
What is the meaning of requirement engineering? Requirement engineering defined as the process of setting up the services that the customer requires from the system and the co
Problem 1 Explain change control? Write down the steps followed for change control Problem 2 Explain the concept of Baselines with reference to software configuration m
What are the testing principles the software engineer must apply whereas performing the software testing? i. All tests should be traceable to customer requirements. ii. Test
User documentation consist descriptions of the functions of a system without reference to how these functions are implemented. Instances are installation guide and reference guide.
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Q. Discuss some of the problems that are faced during maintenance of software? - Habitually another person or group of persons working over the years in isolation from each oth
What are the elements of design model? i. Data design ii. Architectural design iii. Interface design iv. Component-level design
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