With regard to the significance of scientific data and scientists demands to access to them, different methods of data transference have been produced. In the “information explosion age”, these methods have been changed and upgraded. Today, research arena has
enormously developed. On the other hand, specialized research fields and the availability of large number of sources have made plenty of difficulties for scientists to access to their own field references.
For this reason, information offering via systematic procedures such as bibliography preparations organizes collections in ways that provide users with convenient and logical access to materials.
Bibliographies, bibliologies and indexes introduce books and available references in particular subjects expressing physical and analytical properties of information sources.
For more than one century, some countries have had various types of bibliologies and indexes. In today world, these references ectronically supply the necessary data to the scientists and all those interested in form of CDs and Internet.
Since Iran is a vast country, therefore, data collection is a difficult matter for researchers.
In this regard, one of the researchers has said," It is impossible to carry out a research in Iran without shedding tears.” To solve this problem, each organization has prepared an appropriate systematic procedure for data offering to its own personnel.