Project FOLLOW-UP was conducted to develop, test, and validate a statewide management information system for follow-up of Texas public junior and community college students. The result of this project was a student information system (TEX-SIS) consisting of seven subsystems: (1) Student's Educational Intent, (2) Nonreturning Student Follow-up, (3) Withdrawal Follow-up, (4) Graduate Follow-up, (5) Employer Follow-up, (6) Adult and Continuing Education Follow-up, and (7) State Follow-up Reporting. This Data Processing Manual documents the rationale, organization and operation associated with the Student Follow-up Management Information System from a data processing perspective. The documentation, organized into five sub-manuals on specific areas of TEX-SIS data processing, is presented on two fundamental technical levels, one for the administrator having limited expertise in data processing, and another for technical practitioners having responsibility for actual data processing tasks. The five sub-manuals are: Data Processing--General Information, Computer-Generated Analysis Reports, Data Encoding/Translation, Computer Processor Flowcharts, and Computer Processor/Program Listings. Numerous samples of computer-generated analysis reports are included. This manual is intended for use in conjunction with the TEX-SIS FOLLOW-UP Activities Manual (JC 760 474) and Procedures Manual (JC 760 475). (JDS)