Nine models developed principally for use at the central level of the Bureau of Indian Affairs in evaluating the costs and cost-effectiveness of alternative policies and programs are described in this document. The 9 models are: (1) Population Projection Model, (2) Enrollment Projection Model, (3) Facilities Planning Model, (4) Economic Projection Model, (5) Facilities Location Model, (6) Personnel Projection Model, (7) Equipment Projection Model, (8) Finance Management Information System Model, and (9) School Investment Model. The function of the models is to assemble data in formats useful to planners. They are designed to be programmed on computers, and their descriptions are an aid for computer programmers. For each model descriptions include a discussion of model objectives, inputs, process, and output. Flow charts for the various models are also included. Related documents are RC 003 749, RC 003 751, and RC 003 752. [Not available in hard copy due to marginal legibility of original document.] (SW)