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Why software change occurs?
Software change happens because of the following reasons. New needs emerge when the software is used. The business environment changes. Errors need to be repaired. New equipment must be accommodated. The performance or reliability might have to be improved.
Q. A program is to be developed to simulate the operations of a scientific calculator. List the facilities to be provided by this calculator. Analyze this using DFD? Level 0
Define Requirement Engineering . Requirement Engineering is a process in which all of the activities required to maintain and create a system requirements document. The four
What is Software Software is nothing but a collection of computer programs that are related documents that are indented to give desired features, functionalities and good per
State about the Elementary Modeling Techniques A model illustrating bare minimum requirements is known as Essential Model. It has two components: a) Environmental model B)
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
Configuration Management: Because of several reasons, software changes during its life cycle. As a result of the changes made, many versions of the software exist at one time.
Q. What is Inheritance? Inheritance:- Inheritance is defined as the property of objects by which instances of a class can have access to data and programs contained in a previ
Write about drivers and stubs. Drivers and stub software require to be developed to test incompatible software. The " driver" is a program that accepts the test data and pri
What are the profits of vertical partitioning? i. These are very easy to maintain changes. ii. They decreased the change impact and error propagation.
Explain in detail about data modelling. Data modeling makes use of the ERD. Having of 3 interrelated information. The data object. Attributes. Relationsh
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