Information System

In order to transform data into information for decision making, a system must be used to input and manipulate data for aggregation and analysis. A database is designed for this purpose. A database is an organized collection of related information. It can be thought of as a list of data or several lists of data. It is an organized collection, because in a database, all data is described and associated with other data.

It is important to note that databases are not always digital $-$ a filing cabinet, for instance, might be considered a form of database. Most organizations have several databases$-$perhaps even hundreds or thousands. These various databases might be focused on any combination of functional areas $($sales$,$ product returns, inventory, payroll$),$ geographical regions, or business units. Firms often create specialized databases for recording transactions, as well as databases that aggregate data from multiple sources in order to support reporting and analysis. Because of the versatility of databases, we find them powering all sorts of projects. A database can be linked to:

A website that is capturing registered users

A client$-$tracking application for social service organizations

A medical record system for a heal thcare facility

Your personal address book in your email client

A collection of word$-$processed documents

A system that issues airline reservations.give me statements