Information systems refer to the way in which information is gathered, customized, analyzed, shared and reported. Each information systems are invented to support these requirements of business to enable managers to take sound decisions to achieve business objectives and goals.  They often  overlaps each other with respect to functions they provide like gathering, comparing, analyzing, integrating different software applications and reporting. Each kind of information system supports this by varying degree of effectiveness. They all require costs, time, training to use hardware/software and changes to be adopted, to implement the system. 1. Executive Information Systems (EIS) Executive information system supports the top level management in taking strategic business decisions by providing information to executives. Executives can directly extract information from database of the EIS without any need to being reported. It gathers both internal and external information to support executives in achieving strategic objectives and goals. The features of Continue reading
Information Systems Management
The Difference Between Traditional File Systems and DBMS
Traditional File Systems File-based systems were an early attempt to computerize the manual filing system. File-based system is a collection of application programs that perform services for the end-users, such as updating, insertion, deletion adding new files to database etc. Each program defines and manages its data. When a computer user wants to store data electronically they must do so by placing data in files. Files are stored in specific locations on the hard disk (directories). The user can create new files to place data in, delete a file that contains data, rename the file, etc which is known as file management; a function provided by the Operating System (OS). Database Management System The improvement of the File-Based System (FBS) was the Database Management System (DBMS) which came up in the 60’s. (DBMS) consists of software that operates databases, providing storage, access, security, backup and other facilities. This system can Continue reading
Information Systems in Various Levels of Modern Organizations
The INFORMATION SYSTEM plays a major role in the organization by satisfying the diverse needs through a variety of systems such as Query systems, Analysis systems, Modeling systems and Decision support systems. It helps the Clerical personnel in transaction processing and answers their queries on data pertaining to transaction. It helps junior management by providing operational data for planning and control, and helps them in Decision-making. It helps the Middle management in short-term planning, target setting and controlling business functions. It helps Top management in goal setting, planning and evolving business plans and their implementation. OPERATIONAL-LEVEL SYSTEMS At the operational level are transactions processing systems through which products are designed, marketed, produced, and delivered. These systems accumulate information in databases that form the foundation for higher-level systems. In today’s leading organizations, the information systems that support various functional units-marketing, finance, production, and human resources-are integrated into what is known as Continue reading