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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
NATURE AND TYPES OF SOFTARE PACKAGES: Software packages are commercially supplied products which typically provide solutions to a particular range of software development or a
Write definition of DFD? Data Flow Diagram supplies the information flow and the transforms that are used on the data as it moves from input to output.
Draw an E-R diagram for the following situation: an account is a relationtion between cutosmer and bank. A customer had a name.
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 bubb
What is Integration testing: - This test is performed to determine the interfaces among system components, interactions between the application and the hardware, file system, a
TECHLIB Plus microcomputer based software package: This is yet another comprehensive package based on BASIS plus, one of the world's leading Document DBMS and Text Retrieval S
What things will you remember when making an interface? - A class's interface must be sensible enough. It should act the way user expects it to. - It must be designed from t
Question: (a) Briefly explain the following concepts: (i) Encapsulation and its advantages (ii) Abstract class and its use (iii) Polymorphism and its advantages (b)
What is Execution Ans) The process of a computer getting out an instruction or instructions of a computer. Exhaustive Testing: Implementing the program with all possible combina
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