The kinds of Information systems that are available are as follows.
Executive Support systems: An Executive Support System (“ESS”) this was designed in order to help senior management make strategic decisions. It gathers, analyses and summarises the key internal and external information used in the business.
Management Information systems: A management information system (“MIS”) is mainly used with internal sources of information. Management Information systems usually take data from the transaction processing systems and summarise it into a series of management reports.
Decision Support systems: Decision-support systems (“DSS”) are specifically designed to help the management make decisions in situations where there is uncertainty about the possible outcomes of those decisions. Decision support systems comprise tools and techniques to help gather relevant information and analyse the options and alternatives. Decision support sysstems often involves use of complex spreadsheet and databases to create “what-if” models.
Knowledge Management systems: Knowledge Management Systems (“KMS”) exist to help businesses create and share their information. These are typically used in a business where employees create new knowledge and expertise, which can then be shared by other people in the same organisation to create further business opportunities.
Examples include firms of lawyers, accountants and management consultants.
Transaction Processing system: Transaction Processing Systems (“TPS”) are designed to process transactions efficiently and accurately.
For example: Sending invoices, calculating wages and controlling the stoke that goes in and out of the business.
Office Automation systems: Office Automation Systems are systems that try to improve the productivity of employees who need to process data and information. The best example is the wide range of software systems that exist to improve the productivity of employees working in an office (e.g. Microsoft Office XP) or systems that allow employees to work from home or whilst on the move.
These Information systems are vital for businesses these days so that they run smoothly and also remain efficient and productive.