The work of the information officer [should be] regarded as the natural dynamic extension of that of the librarian. - Douglas John Foskett

After six years of war service, I rejoined Ilford Public Library service in 1946, and set about completing my F.L.A., begun in 1940. This service had a good tradition of assistance to readers, and when I joined the Metal Box C. in 1948, I soon realised how the skills required for a scientific and industrial research “information officer” depended on the basic techniques of librarianship, notably classification and cataloguing. The enhancement of these led to the development of higher levels, in literature searching, and, more particularly, in current awareness service and selective dissemination of information.... Meeting with S. R. Ranganathan in 1948 gave me a new view of classification as facet analysis plus traditional generic analysis and I applied this in schemes for Packaging, Occupational Safety and Health, and Education. This experience has suggested to me that facet analysis applied to any subject can reveal hitherto uncoordinated concepts - materials, processes, etc – and thus offer an indication of possible areas of future research. This could be a unique Information Science to the World Wide Web.

The (C.R.G.) in London has been discussing for some years the theory of documentary classification, and several papers have been published which reflect the course of the discussions (1–8). Beginning with an explicit disavowal of allegiance to any one published system, the Group has considered the well-known schemes, both general and special, and the work being published by those in other countries who have also been studying the subject theoretically. It has not, unfortunately, had the opportunity so far of seeing the system developed in the U.S.S.R. on the basis of the philosophy of dialectical materialism. While the Group has not been particularly satisfied with the development of the itself, we have nevertheless come to the conclusion that the method of facet analysis, first used systematically by , though sometimes occurring previously as it were by intuition, should form the basis of all forms of information retrieval.

The purpose of a classification scheme is to arrange information, in documents on shelves or on cards in indexes, in a sequence that will be helpful to the user.