Information Systems
by Sam Melman
1. Transaction Processing Systems
1.1. Provides a means to collect, process, store, display, modify, and or cancel a transaction. Transaction Processing Systems allow for more than one transaction to be entered at one time. Information collected is stored in a database which is used to produce reports.
2. Decision Support Systems
2.1. Manipulates and analyzes data to aid people in coming up with a decision. It also generates statistical projections and creates models of various scenarios.
3. Expert Systems and Neutral Networks
3.1. Is sometimes referred to as a knowledge-based system. The system is designed to analyze data and produce recommendations, diagnosis, and decisions based on the information and rules set. Each system produces recommendations in a particular domain thus it is not a general problem solver.
4. Information Systems in Organizations
4.1. Stores, processes, and transmits data to provide accurate information for an organization. This allows for work to be completely in an organized and timely fashion.
5. Management Information Systems
5.1. Uses data that was previously collected by the Transaction Processing Systems to create reports by manipulating data. They can provide schedule reports, ad hoc reports, summary reports, and exception reports.
