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Evaluation of Reference Sources and Web Resources
Introduction
         Authority
         Purpose, Price
         Physical format, Picture
         Arrangement
         Recency, Revision
         Accuracy
         Treatment / Reliable
         Use
         Scope
Web Resources Preservation 

                                                                                                                                                                       

             Evaluation of Reference Sources and Web Resources           

  Introduction                                                                                        

 Reference sources are the backbone of a library. It helps the libraries and librarian in maintaining the question banks from which answer to queries of the users and material required by users  are available. It may be added that the border line of demarcation between a reference book and others is not always sharp. The decisions as to whether on not to regard a given book as a reference book will sometime different from library to library. 

The checklists for evaluation of reference sources are more or less same for all types of work. They can be applied to all sources, with slight modification. The mnemonic from APPARATUS can be used as a check points for their appraisal. The APPARATUS indicates :  

 A - Authority 

 P - Purpose, Price 

 P - Physical format, Picture 

 A - Arrangement 

 R - Recency, Revision. 

 A - Accuracy 

 T - Treatment / Reliable 

 U - Use 

 S - Scope 


   Authority   

The work should be authoritative. The authoritiveness of a reference book can usually be judge on the basis of qualification, experience and reputation  of the sponsoring body (if any). publisher, distributors, author(s), Editor (s), compiler(s). 


  Purpose, Price  

 What is the purpose of the work as stated by the editor himself? Has this purpose been full field in the main work? what is the total cost of the work and whether the cost can be justified on the basis of its content? 


  Physical Format, Picture  

 It refers to the physical make up of the book. All reference works should be a handy volume easy to withstand wear and tear. Format refers to binding quality of paper, typefaces, page make up. illustration, plates, diagrams, maps etc. Binding is of special consideration for bulky works likely to be used heavily. Type face should be clear and legible with suitable heading and subheading in hold types for the guidance of the readers. 


  Arrangement  

 A reference Source demand easy and quick location of recorded entries. Goods arrangement adds to the value of a reference sources. The information must be systematically arranged. It is essential to have a detailed index which should provide for various kinds of approaches. The arrangement of the main text can be classified or chronological or geographic or alphabetical or some other. The kind of arrangement used should have a sound basis. Index to the main text is extremely important. The index should be detailed one providing reasonable number of approaches complemented by cross references. The index can be alphabetical or classified or some other. 


  Recency, Revision  

 Information is always developing, some old become obsolete and some new are added. So in the evaluation process, the evaluator should keep it in mind to check whether the work is current and update or not. A continuous revision policy must be followed. Some works may issue supplements containing new information. what devices it uses to keep the bibliographies up to date. Though some reference sources may contain some retrospective information, every year, it should be thoroughly revised and updated. The time lag is important for current sources. 


  Accuracy  

The work should be judged by the accuracy of the facts mentioned in the work. 

  Treatment  

 It is to be ascertained whether the information is reliable and accurate or not, whether the treatment is biased or unbiased. It includes how through reliable and complete is the information. e.g. Facts, statistics, Place, names, names of persons, names of organization bibliography whichever applicable. Treatment should also include questions. like does it show any bias on controversial topics. Has the space allocated for a topic related to the degree of importance attached to a topic? Has the work written for scholars or layman, adults or children? How readable is the writing etc. 

   Use   

 If the work will be purchased then who will be the user, who will benefit from the world. Does the library have such kind of user base or not? 

   Scope   

 The kind of information included would depend upon the scope of the work. Some worth may cover a particular country or the whole world or all subjects while others may be restricted to some specific or minute topic only. The date or period covered is an important criterion. Some times it may relate to a particular subject Organization also. The content page, preface and introduction may give an idea of the information contained in the  work. What are the limitations of the reference work with regard to subject class of reader, up to datunes of material, what is the overall coverage? Does it follow a definite plan consistently ? what is the extent of supervision provided by the editor(s)? Some works have a long history. It would be useful to add history as additional check point. 

   Web Resources Preservation   

According to a report by the US library of congress, 44% of the site available on the internet in 1998 had vanished one year later. Web archiving is the process of collecting portions of the world wild web and ensuring that the collection is preserved in an archive, such as an archive site, for future researchers, historians and public. The internet archive is a non-profit digital library with the stated mission of universal access to all knowledge. It offers permanent storage and access to collections of digitized material including websites, music, moving images, and books. The internet archive was founded by Brewster Kable in 1996.










                                                                     Notes                                                                









                                                                     Question                                                           

1. Assertion (A): Evaluation of information is necessary. Reason (R ): Anybody can write on internet. Codes : 
A. Both (A) and (R) are false 
B. Both (A) and (R) are true 
C. (A) is true but (R) is false 
D. (A) is false but (R) is true
Ans: 

2.