Distinguih between IRS and DBMS

Information retrieval system: The term information retrieval was coined in 1952 and gained popularity from 1961 onwards. At that time information retrieval’s function was seen as a major advance in libraries that were no longer just storehouses of books, but also places where the information was catalogued and indexed. Definition: According to Harter information retrieval system "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 filterout unwanted items". The concept of information retrieval system is to some extent self explanatory from the terminological point of view. One may simple denote such a system as one that stores and retrieves information. The three major areas that constitute an information retrieval system are: 1. Items of information 2. Users queries and 3. Matching of these queries with the document database. DataBase Management System: A database management system is a collection of programms that enable you to store, modify and extract information from a database. there are different types of DBMS, ranging from small systems that run on personal computers to huge systems that run on mainframes.A database management system is a computer program designed to manage a database and run operations on the data requested by numerous clients. DBMSs have more recently emerged as a fairly standard part of any company back office.DBMSs are found at the heart of most database application sometimes DBMSs are built around on private multitasking kernel with built-in-networking support although nowadays these functions are left to the operating system. A database application is computer software written to manage the data of a particular application or problem.In database management system, data can be retrieved in three levels. 1. Physical level 2. Conceptual level 3. User level Distinguish between IRS and DBMS: 1. One of the most distinguish features of DBMSs is that they offer an advanceDataModellingFacility(DMF) including DataDefinitonLanguage and DataManipulationLanguage for modelling and manipulating data. IRSs do not offer an advance DMF. Usually datamodelling in irs is restricted to classification of objects. 2. A major strength of the DataDefinitonLanguage of DBMS is the capability to define the data integrity constraints. In IRSs such validation mechanisms are less developed. 3. DBMSs provides precise semantics. IRSs most of the time provides imprecise semantics. 4. DBMSs has structured data format. Wereas, IRSs is characterised by unstructured data format. 5. Query specification is complete in DBMS. In IRS query specification is incomplete. 6. Query language is artificial in DBMS. In IRS query language is near to natural language. In DBMS, one normally looks for an exact match. In IR, more generally one is satisfied with the partial match and then select best one among the selected items. Both IRS and DBMSs are equipped with some basis data management facilities and application development facilities. Often DBMSs are the more advancedin this respects.

LAW OF LOCAL VARIATION

Dr.S.R.Ranganathan has identified 6 basic laws.Basic Laws are made up of on the basis of basic process of thinking. The 6 Basic Laws are: 1. Law of Interpretation 2. Law of Impartiality 3. Law of Symmetry 4. Law of Parsimony 5. Law of Osmosis 6. Law of Local Variation DEFINITION FOR LAW OF LOCAL VARIATION: The principle that in any discipline and technique there should be provision for the users of them to secure, for strictly local use, results alternative to those for general use. Although the term ‘local interest’ if interpreted literally, means from national to village. But in accordance to this law, geographical area of any size may be taken into consideration, keeping in view the special interests of the users. Examples: 1. In colon classification the digit 2 is used for mother country and digit 3 for favoured country. This not only shortens the class number, but gives priority to shelf arrangement to the local collection and favoured collection. 2. A language in which the majority of the library are written, may be treated as favoured language of the library, in colon classification for such a language, there is no need to write the number of the language. All books which are written in favoured language of the library would be arranged earlier the group of books written in other languages. REFERENCES: 1. Ranganathan,S.R. 1967. Prolegomena to Library Classification;3rd ed. Bombay:Asia publishing house. 2. Dhyani,Pushpa. 1998. Library Classification: Theory and priniciples. NewDelhi:H.S.Poplai.

Evening

Gud evening all the veiwers.i am very happy this evening bcoz i met my best friends.i told her about the college and about our mullisa competition.that's it i don't have words.

bye........

TODAY

Hi friends! Belated ramzan wishes to all my friends and to all the viewers. Today i am not feeling well so i got up late in the morning.I got my seminar topic so,i have to get ready for it.I came to college in my vehicle so, that i need'nt worry for the bus.

TODAY

Hello

hi friends!

HAPPY DELIGHT DEWALLI TO ALL MY FRIENDS AND BLOGGERS.

I am enjoying my holidays with my friends and my relatives.yesterday i had been to exhibition with my friends we enjoyed a lot and we did shopping.I took a new dress and crackers for dewalli.today i had been to my friends place where i wathched NO ENTRY movie it was very comedy movie i liked very much.I am leraning embroidray from my sister which is a good timepass for me and it is saving my pocket money.I helped my mom while she was preparing sweets for dewalli.
Today evening i am going to temple with my sister.In the night i am bursting crackers which is my favorite .I am praying god not rain in the evening.

cross cultural project

Today we the students of library and information science of mysore university had a meeting with the chairperson Dr.Shalini Urs about cross cultural project. We will be interacting with students of other countries through email and chatting.

smitha

hi