Collection Development is defined as the planned purchase of materials in various formats to match the instructional and research needs of the campus within the current fiscal environment and resource sharing opportunities. The heart of a library is its collections: The building houses them; the library personnel acquire and manage them and teach users how best to access and use them. adapted from http://ucblibraries.colorado.edu/collectiondevelopment/I_definition.htm
Library collection development is the process of meeting the information needs of the people (a service population) in a timely and economical manner using information resources locally held, as well as from other organizations.
Collections are developed by librarians and library staff by buying or otherwise acquiring materials over a period, based on assessment of the information needs of the library's users. In addition to ongoing materials acquisition, library collection development includes:
Faculty recommendations and requests play an essential role in the collection development process. However, faculty cannot be expected to do all of the selection. The librarian liaison must take responsibility for:
from Liaison Duties, Library document, 5/2013