“Information systems are the means by which people and organisations, utilising technologies, gather, process, store, use and disseminate information”
The information system underlies the concept that the organization is a complex adaptive system, which has the defined boundaries, structural communication channels, control and web of coordination. Information system integrates the system theories, resources and objectives together to get one conclusion in overall. Components of BIS:
Data & Information: Understanding of how data, information and knowledge can be Information systems involves and functions by managing data, information and knowledge in any organization by mainly the modelling, storing and processing them. Different models and techniques are used in information systems to process, store, and organize and effective use of data, information and knowledge in organization. Decision making: The main work of Information system is to provide the information for decision making on different level. This function is done by IS by designing the decision making path by creating and using the information needed to make that particular decision. Strategic Development: The link between Information system and the strategic development can be identifying by role of IS in identifying the needs and paths of strategic development and its importance in assessing the consequences. Designing the IS: Information System is designed in accordance to their deliverables, techniques and by counting the circumstances unique for each function or organization. During the design the main concern are the communication between the users and developers and taking the main features into account like the data protection and other ethical issues. Development & maintenance of IS: Development and maintenance of the Information system is done using different methodologies, tools and techniques and depend on the unique system requirements and organizational circumstances. Use of IT in Information Systems: Sometime the Information system (IS) is confused with the Information Technology (IT).IT is component of the IS, where IT is the use of technology to perform the different functions of the IS. Use of technology in information system, has developed the tools, technologies and methodologies and have given it the new horizons by making it better. It is essential to make understand the parts of IS including design, performance and consequences of IS in new and better ways. It change the way of works in especially managing the workforce, management techniques and ways of communication inside and outside the organization. The continuous improvement and innovation is the primary feature of IT based information system, which is milestone for organizational success in modern IT based era. There are also technology used in Information systems effect not only on organizational economic conditions but overall on individual, industrial and nation level.
Types of Business Information Systems:
Every Organization have the different levels of management and work requirements and the information needed for the each level and task to be performed is different from other. The overall organization can be categorized in three levels depending on the decision making level and the power structure and these three levels are as follows * Strategic level required strategic information
* Management level \Tactic level need managerial information * Operational Level required operational information
Information requirement for each level is different and there are following three systems which are used to meet the need of these three levels
Relation of information systems to levels of organization
Transaction Processing Systems (TPS)
This system is used for the information management required for functioning of the functional level. The information required on...