- Control Of Information System
- Audit Of Information System
- Security Of Information System
- Consumer Layered Security Strategy
- Enterprise Layered Security Strategy
- Extended Validation And Ssl Certificate
- Remote Access Authentication
- Content Control And Policy Based Encryption
- Example Of Security In Ecommerce Transaction
- Enterprise Management Systems (Ems)
- 2.1. Enterprise Software (Erp/Crm/Scm)
- 2.2. Information Management And Technology Of Enterprise Software
- 2.3. Role Of Is And It In Enterprise Management
- 2.4. Enterprise Engineering, Electronic Organism, Loose Integration Vs Full Integration, Process Alignment, Framework To Manage Integrated Change, Future Trends
INFORMATION SYSTEM NOTES ,IOE
CLASSIFICATION OF INFORMATION SYSTEM
Operations Support System
The operations support system deals with the support of business operations. The role of an operations support system is to efficiently process business transactions, control industrial processes, support enterprise communication and update corporate databases.
Major categories are:
Transaction processing systems
Process control systems
Office automation systems
1. Transaction Processing Systems
A transaction is any business-related exchange such as payments to employees, sales to customers, or payments to suppliers. Thus, processing business transactions was the first computer application developed for most organizations. A transaction processing system (TPS) is an organized collection of people, procedures, software, databases, and devices used to record completed business transactions.
2. Process Control Systems
Process control systems are a category of operations support system in which decisions about a physical production process are automatically made by computer through routine decisions that control the operational process. Example: A petroleum-refining center uses electronic sensors, which are linked to the computers to continuously monitor chemical processes and make instant adjustments that control the refined process.
3. Office Automation Systems
Office automation systems are computer-based information systems whose primary purpose is to facilitate oral and written communication. Such a system is a set of tools that gather, process, store, retrieve, and disseminate information between individual workers, team of workers, and business entities, both inside and outside the organization. Examples of office automation systems are word processing, voice mail, e-mail, videoconferencing, and multimedia systems.
Management Support Systems
The management support system produces information that is consumed at managerial level to assist in management level planning and decision making. The system deploys various data analysis tools and technologies to derive the information that are critical in the managerial decision making process.
Major categories are:
Management information systems
Decision support systems
Executive information systems
1. Management Information Systems
MISs were first developed in the 1960s and typically use information systems to produce managerial reports. Some of the reports that this information system creates are summary, exception and reports. All this is done to increase the efficiency of managerial activity.
2. Decision Support Systems
A decision support system (DSS) is an organized collection of people, procedures, software, databases, and devices that support problem-specific decision making.
Consequently, a DSS also involves managerial judgment and perspective. Managers often play an active role in developing and implementing the DSS.
3. Executive Information Systems
Executive information systems are strategic-level information systems that help executives and senior managers analyze the environment in which the organization operates, to identify long-term trends, and to plan appropriate courses of action. Executive information systems are designed to be operated directly by executives without the need for intermediaries and easily tailored to the preferences of the individual using them.
EVOLUTION OF IS (HISTORY OF IS)
- Data Processing: 1950s-1960s
The first business application of computers (in the mid- 1950s) performed repetitive, high-volume, transaction-computing tasks. The computers "crunched numbers” summarizing and organizing transactions and data in the accounting, finance, and human resources areas. Such systems are generally called transaction processing systems (TPSs)
- Management Reporting: 1960s-1970s
Management Information Systems (MISs): these systems access, organize, summarize and display information for supporting routine decision making in the functional areas. Office Automation Systems( OASs): such as word processing systems were developed to support office and clerical workers.
- Decision support: 1970s-1980s
Decision Support Systems: were developed to provide computer based support for complex, non-routine decision.
- Strategic and End User Support: 1980s-1990s
The use or development of information systems by the principal users of the systems’ outputs, such as analysts, managers, and other professionals.
- Global Internetworking: 1990s-2000s
Mobile Computing: Information systems that support employees who are working with customers or business partners outside the physical boundaries of their company; can be done over wire or wireless networks.
IS VS IT
