All organizations have several types of information system. At any point in time, varying degree of these information systems may be computer based. For example, an organization's payroll information system may be computer based, but its strategics planning information system maybe processed manually. As time passes, organizational processes change. The organization's information system must change in response to the changing needs of the organization. When this occurs, management usually initiates some form of a system development life cycle(SDLC) to address the problem.
Object Oriented Programming Programming paradigm that represents the concept of "objects" that have data fields (attributes that describe the object) and associated procedures known as methods Programming methodology based on objects, instead of just functions and procedures Focuses on data rather than process As individual objects can be modified without affecting other aspects of the program, it is easier for programmers to structure and organize software programs Easier to update and change programs written in object-oriented languages Simula was the first object oriented programming language Eg: C++, Java, etc. Features of OOPS Objects Referred as instance of class Basic run-time entities in an object-oriented system a person, a place, a bank account, a table of data, etc can be an object They occupy space in memory that keeps its state Each object contains data and code to manipulate the data Classes Blue print or prototype which defi
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