This document demonstrates the impact of systems analysis on functional job analysis for occupations in human services. The first section discusses the goals and components, and data analysis techniques of the systems approach. In the next section, systems analysis is applied to the tasks performed in a variety of human services occupations. These task descriptions are then regrouped into a career ladders model of social service occupations. The last section provides an evaluation of the usefulness of the systems approach to job analysis. Appendixes present sample job descriptions and core curricula for human services education. A related document is EA 003 979. (RA)