The importance of Computer

In the world of globalization, Information system is such where data are collected, classified and put into process interpreting the result thereon in order to provide an integrated series of information for further communicating and analyzing. In a progressively more spirited worldwide atmosphere, Information System plays the role as 'enabler and facilitator', which endows with tactical values to the officialdom and considerable step up to the excellence of administration. 'An Information System is a particular type of work system that uses information technology to detain, put on the air, store, retrieve, manipulate or display information, thereby partisan one or more other work structure'. In totting up to taking sides assessment making, co-ordination and control, information systems may also help managers and workers investigate problems, envisage complex subjects and generate new merchandise or services. Work systems and the information systems that support typically undergo at least four phases: a) initiation, the process of defining the need to change an existing work system b) development, the process of acquiring and configuring/installing the necessary hardware, software and other resources c) implementation, the process of making new system operational in the organisation, and d) Operation and maintenance, the process concerned with the operation of the system, correcting any problems that may arise and ensuring that the system is delivering the anticipating benefits. The management of these processes can be achieved and controlled using a series of techniques and management tools which, collectively, tend to be known as Structured Methodologies. Two important methodologies:  PRINCE (Projects IN a Controlled Environment), and  SSADM (Structured Systems Analysis and Design Methodology), developed by the Central Computing and Telecommunications Agency (CCTA), are used widely in the UK public sector and in some Developing Countries, like Bangladesh, Pakistan, Nepal etc. Prior to comment on the application of these methods in the Developing Countries, it would be pertinent to describe brief outlines of these methodologies. PRINCE is a project management method; not system development, which covers the organisation, management and control of projects. Since its introduction in 1989, PRINCE has become widely used in both the public and private sectors and is now the UK's de facto standard for project management. Although PRINCE was originally developed for the needs of IT projects, the method has also been used on many non-IT projects. PRINCE requires a dedicated team to be established to manage and carry out each project. It therefore aims to provide a supporting framework between the current state of affairs and the planned future state. PRINCE focuses attention on end-products rather than activities, ensuring that the organisation actually gets what it wants out of the project. Quality is seen as a necessary and integral part of the project and the focus on end-products enables the criteria by which quality is to be judged to be specified at the outset of the project. It requires the development of a viable "business case" for the project at its outset and that the business case needs to be periodically reviewed.