D. Data Resources Data is more than the raw material of information systems. Data can take many forms, including traditional alphanumeric data, text data, image data, and audio data. -Databases that hold processed and organized data. -Knowledge bases that hold knowledge in a variety of forms such as facts, rules, and case examples 1.3.1 Types of Information Systems/ MIS Sub Systems B. Hardware Resources
[DBU] [College of Computing Science]  Compiled By: S. E. 8/11 SAD – Chap1 The types of information systems increased dramatically in the 1980’s to a la rge extent this can be attributed to the increase in the capability of computer hardware. As their capabilities continue to develop, you can expect new types of information systems to emerge. Transaction Processing Systems Office Automation Systems Management information systems Executive Information systems/executive support system Decision support systems Figure 1.5: Types of Information System Transaction Processing System (TPS) A transaction is a business event such as a sale to a customer. Other transactions include payment to an employee for work-performed purchase of raw materials, and payment of accounts payable. TPS keep track of these daily business events. This basically to support day to day operations by maintaining detailed records. This system helps the company to conduct its operation and keep track of its activities. Types of Transactions: Note that the transactions can be internal or external . When a department orders office supplies from the purchasing department, an internal transaction occurs, when a customer places an order for a product, an external transaction occurs, Internal Transactions:
[DBU] [College of Computing Science]  Compiled By: S. E. 9/11 SAD – Chap1 Those transactions, which are internal to the company and are related with the internal working of any organization. For example: Recruitment Policy, Promotion Policy, Production policy etc. External Transactions: Those transactions, which are external to the organization and are related with the external sources, are regarded as External Transaction. For example: sales purchase etc. Basic purpose of TPS: TPS automates the handling and capture of data about transactions or business activities For each transaction, the system must capture the data, verify that it is valid transaction and accept or reject it Accepted transactions are stored in the system database Reporting provides summaries of transactions (ex. daily, weekly) The analysis and design of a TPS requires to focus on the firm’s current procedures for processing transactions. How the organizations track, capture, process and output data? The goal of TPS development is to improve transaction processing by speeding it up, using fewer people, improving efficiency and accuracy, integrating it with other organizational information systems, or providing information not previously available. Characteristics are 1). Detailed 2). Record oriented 3). Reliability article 4). Performance 5). Supporting technology stable Office Automation System (OAS) OAS uses the computer to automate many of the routine tasks that are performed in a typical office. OAS support interpersonal communication activities for correspondence. This system creates, store, modify and process interpersonal communication whether in written, verbal or video form. Perhaps the most widespread type of office automation system is word processing.
- Fall '19
- DBU, College of Computing Science