A study was conducted to develop a procedure for linking occupational attribute preferences (OAPs or "job values") to occupations in DISCOVER, a computer-based career planning system. A 30-attribute Inventory of Work Preferences (IWP) was constructed and field tested with high school students. Procedures for rating occupations on IWP attributes were developed and implemented for the 497 occupations in DISCOVER. Analyses of occupational attribute differences across the 497 occupations were conducted in order to identify a small set of 16 IWP items that differentiate (in a reasonably appropriate manner) job clusters similar to Holland's (1985) occupational types and that differentiate American College Testing (ACT) Program job families. Principles guiding the development of a procedure for linking counselee attribute preferences to occupations via ACT's World of Work Map are described. The study concluded with four families that can be suggested for counselees on the basis of World-of-Work Map are described. The study concluded with four World-of-Work Map, the Inventory of Work Preferences, and 64 references.) (Author/KC)