a) Describe eight stages of the information retrieval.
Describe with examples the pattern of regional databases (African Index
Medicus, African on Line ).
What trend are shaping the trend of these
What do you understand by Controlled vocabulary
What is meant by an information retrieval system? Describe the
components by reference
to current operational system
e) What are the basic components of an information retrieval system? Discuss
how these components can be seen in a variety of different types of the