>Top Managers(To make strategic decisions as well as to solve internal and external problems). Ex : Chairman, General Manager, Director Board >Make decisions which would decide the future path, affect the entire organization and are of long term existence. >The internal and external information of the organization are required for it. >Information should be provided in summarized form.

Executive Support System(ESS)

>Middle level managers(To make decisions, monitor and control). >This systems is used to implement and control the activities with the decisions made by strategic level managers. Eg: Marketing managers, financial managers, production managers and human resource managers

Management Information system system(MIS)

Decision Suppor System (DSS)

>Knowledge employees and data employees are two types of employees at this level. >The information systems that are used by them are known as knowledge level information systems. These information systems are used for discovering organizing and integrating new knowledge. Eg:Lawyers, accountants’ auditors and engineers(They are the ones who generate information) Data employees are the employees such as clearks and computer operators who engage in activities like copying the information, distributing and using of the information.

Knowledge work System (KWS)

Office Automation System (OAS)

>The information systems that assist operational managers to make decisions on basic activities and transactions of the business. >Information such as sales, receipt of money, depositing of money, pay sheets, purchasing of materials and usage of materials etc… are processed through these systems. >Managerial employees of operational level like supervisors and storekeepers etc…. use these information systems.

Transaction Processing System(TPS)

>Operated at strategic level. >Information systems that have been developed to provide the required information to top level managers to make decisions are known as Executive Support Systems.

>Used at management level. >The type of systems with analytical ability that assist middle managers to make uniform structured and semi-structured decisions which cannot be determined easily and keep on changing rapidly. >Structured decisions – Calculating of the EOQ. >Semi-Structured decisions – Investment evaluating decisions.

>Used at middle management level. >The information systems that assist middle level managers to make planning decisions, monitor and control. >These systems provide information in the form of reports Ex:-  Periodical reports – Daily sales reports,  Monthly – Receipts from debtors reports  Special reports – Providing a report regarding a specific debtor when the management insists for it.

>Operated in knowledge level. >Copy data and information electronically and to communicate them in the same form. >Used by the assistant accountants, secretaries and clerks etc.. >The goal of the office automation systems is to facilitate E-pasting of data and information as well as communicating them in the same form. Ex:-  For preparing documents - Word Processing Systems  For communicating information E – mail

>Operate at knowledge level. >These are the information systems that generate information required by knowledge employees such as engineers, doctors, lawyers and researchers etc…. Ex:-  Computer Aided Designing (CAD)

>Used to process basic data generated through frequently occurring functions of an organization. >There can be several transaction processing systems developed for each department of an organization. Ex:-  Production division - To purchase materials - To order materials.  Marketing division - To receive selling orders 284 - To price the goods.  Financial/Accounting division - To prepare budgets, Division - To prepare general leader - To make cash payments  Human Resource Division - To prepare pay sheets - To record employee attendance - For training and development

>Strengthen Executive Support System. >These systems are developed using data and information which are to be used for Decision Support Systems. >These are systems that comprise of abilities, processes, technological usage and practices.  Even though the systems are classified on usage in the above manner, there is an inter-relationship among these systems.

The information systems used to process information needed for operational activities.  Planning & controlling of purchase  Computer integrated manufacturing  Controlling of operations process and machiner

The information systems installed to process information relevant to marketing management  Market research Marketing research Advertising  Sales  Promotion

The information systems installed for financial and accounting activities.  Cash management Capital budgeting  Financial panning Financial forecasting Auditing

The information systems used for human resource management.  Human resource planning  Salary management  Training and development  Performance appraisal

The information systems that prepare information required for research and development division  Product research  Product development