Database Mangement and Retrieval System

1425 Words Jul 9th, 2018 6 Pages
Question 1.
Differentiate between database management system and information retrieval system by focusing on their functionalities.
Database Management System (as known as DBMS) is a set of application that enable user to create, edit, update, store and retrieve data from database files. By using DBMS, data in a database can be added, deleted, changed, sorted and searched. DBMSs are usually used to manage employee information of a big company, customer information and stock information. By using the DBMS, there are advantages and disadvantages. The advantages of a DBMS is the same information can be available to any user, minimizing redundancy can reduce the cost of storing information on other devices, the accuracy in using DBMS because
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In information retrieval concept, metadiator is the one who helps to support the interaction between the user and the information resource.
There are two main approaches to IR, which are statistical approach and semantic approach. In a statistical approach, documents are analyzed and broken down into chunks of text and each word or phrase is counted, weighted, and measured for relevance or importance. Meanwhile, semantic approaches to IR use knowledge-based techniques of retrieval the broadly rely on the syntactic, lexical, sentential, discourse-based, and pragmatic levels of knowledge understanding. In practice, semantic approaches also apply some form of statistical analysis to improve the retrieval process.

Question 2.
Highlight the differences between data and information.

Data and information are related. Once data is processed, it calls information. But data is raw, plain and unprocessed item and need to be processed. Data itself is useless until it is organized. Meanwhile, information is a collection of data after it process. Generally, there are three main differences between data and information such as their meaning, example and definition.
In the context of meaning, data is something plain, raw, unorganized facts that need to process to be meaningful while information is a collection of many data that is meaningful to the user. For example, the score of science test, date of birthday,