Database program that is a software system that store the database information. It organizes, manages incoming data and provides ways for the data to be modified or extracted by users or other programs. Is a device interposed between a potential user of information and information collection itself for a given information problem, the purpose of the system is to capture wanted items and to filter out unwanted items.
Structured data. Unstructured data.
Make new databases.
Define the content of the databases.
Handling of access rights.
Organization of physical data structures.
One of the most distinguish features of DBMS is that they offer an advance Data Modelling Facility (DMF) including Data Definition Language (DDL) and Data Manipulation Language (DML) for modelling and manipulating data.
A major strength of the Data Definition Language of DBMS is the capability to define the data integrity constraints.
Provides precise semantics.
Query specification is complete in DBMS.
Query language is artificial in DBMS. Indexing documents (unless the system works directly on the document text).
Formulating queries, resulting in document representations and query representations, respectively.
The system then matches the representations and displays the documents found and the user selects the relevant items.
Search request returns list or pointers to documents.
Not offer an advance DMF. Usually data modelling in information retrieval system is restricted to classification of objects.
In IRS such validation mechanisms are less developed.
Most of the time provides imprecise semantics.
Query specification is incomplete.
Query language is near to natural language.
Besides that, the differences between data and information as follow:
Database deal with structured...