The Collaborative Digital Reference Service, which is an important item of the library information service nowadays, is developing with the evolution of computer technology, database technology, computer supported cooperation work, intelligent agent, and distributed network communication, based on the traditional reference service.
Utilizing database index system of Chinese academic periodical CNKI,this article made investigation,statistic and comments on papers for virtual reference,digital reference and online reference from 2000 to 2004 in the aspects such as annual,periodical,author and theme.
To exemplify urgent applications, radiophysical synthesis of detailed digital reference radar terrain maps and microwave radar images that was proposed earlier is considered and improved with the use of the theory of fractals.
We have so many other digital reference materials that we need to purchase that it hasn't made it to the top of the priority list.
We require some further breadboard development of the digital reference, as discussed above, before we can make the required measurements.
We found that our users were turning to our digital reference services for help with technical problems with library databases and other resources.
VRD also supports research on interoperability standards, metadata and other aspects of digital reference services.