database management system and information retrieval system

Differentiate between database management system and information retrieval system by focusing on their functionalities.

A database management system in the main software tool of the database management approach because it controls the creation, maintenance, and use of the database of an organization and its users. The three major functions of a database management system are first to create new database and database application. Second to maintain the quality of the data in an organized database. And last to use the database of an organization to provide the information that its end users need. An example of a database management approach in a banking information system. Note how the savings, checking and installment loan programs use a database management system to share a customer database. Note also that the database management system allows a user to make direct, ad hoc interrogations of the database without using application programs.

An information retrieval system (IRS) is the activity of obtaining information resources relevant to an information need for a collection of information resources. Searches can be based on metadata or on full text (or content based) indexing. The automated information retrieval system is used to reduce what has been called “information overload”. Many universities and public libraries use information retrieval system to provide access to books, journals, and other documents. Web search engines are the most visible information retrieval application.

An important component of information retrieval system is the form of information delivery implemented in the interface software package. Establishing a multipurpose information retrieval system interface for research, cataloguing of manuscript co...

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The expression “unstructured data” usually refers to information that not reside is a traditional row-column database. As you might expect, it’s as opposed to structured data the data stored in fields in a database.

Unstructured data files often include text and multimedia content. Examples include the e-mail messages, word processing documents, videos, photos, audio files, presentations, web pages and many other kinds of business documents. Note that while these sorts of files may have an internal structure, they are still considered “unstructured” because the data they contain doesn’t fit updates in a database.

Experts estimate that 80 to 90 percent of the data in any organization is unstructured. And the amount of unstructured data in enterprises is growing significantly – often many times faster than structured databases are the rise.