digital reference service

[mad.mad]

Give a brief description about concept and development of digital reference service

[factor-fiction]

Sounds like a homework question.
There are many helpful members of Answerbank who like to help but I suggest most of us are more inclined to help when the questioner goes to the trouble of posing a specific question and gives an idea of the context in which it is being asked. For example are you referring to the use in a library , in legal profession, in hospitals, in an office.... or is it just a general question? Is it a degree level question or a BTEC level question?
If you give us more of a steer on what you want someone will probably help.

[Jugglering]

Not knowing what a *digital reference service* actually meant, I simply googled that phrase and came up with these:-

http://www.ifla.org/VII/s36/pubs/drg03.htm

http://www.michaellorenzen.com/eric/digital-re ference.html