Stages of SDLC System development cycle stages are sometimes known as system study. System concepts which are important in developing business information systems expedite problem solving and improve the quality of decisionmaking. The system analyst has to do a lot in this connection. They are confronted with the challenging task of creating new systems an planning major changes in the organization. The system analyst gives a system development project, meaning and direction.
The typical breakdown of an information systems life cycle includes a feasibility study, requirements, collection and analysis, design, prototyping, implementation, validation, testing and operation. It may be represented in the form of a block diagram as shown below:
a)Feasibility study: It is concerned with determining the cost effectiveness of various alternatives in the designs of the information system and the priorities among the various system components. b) Requirements, collection and analysis: It is concerned with understanding the mission of the information systems, that is, the application areas of the system within the enterprise and the problems that the system should solve. c) Design: It is concerned with the specification of the information systems structure. There are two types of design: database design and application design. The database design is the design of the database design and the application design is the design of the application programs. d) Prototyping: A prototype is a simplified implementation that is produced in order to verify in practice that the previous phases of the design were well conducted. e) Implementation : It is concerned with the programming of the final operational version of the information system. Implementation alternatives are carefully verifies and compared. f) Validation and testing: It is the process of assuring that each phase of the development process is of acceptable quality and is an accurate transformation from the previous phase. Q4. Compare & Contrast E-enterprise business model with traditional business organization model? Explain how in E-enterprise manager role & responsibilities are changed? Explain how manager is a knowledge worker in E-enterprise? Ans:
Managing the E-enterprise Due to Internet capabilities and web technology, traditional business organisation definition has undergone a change where scope of the enterprise now includes other company locations, business partners, customers and vendors. It has no geographic boundaries as it can extend its operations where Internet works. All this is possible due to Internet and web moving traditional paper driven organisation to information driven Internet enabled E-business enterprise. E-
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