This paper describes the development by the Mexican Electric Power Research Institute (Instituto de Investigaciones Electricas or IIE) over a 10-year period of a publications and conferences database (PCDB) of research and development output of the institute. The paper begins by listing the objectives of the database and describing data coverage and specifications for written or verbal works used to disseminate research and development output (Research and Development Dissemination Units or RDDU), as well as for the media used to transmit the works, e.g., journals, books, or conferences. Data sources are then discussed, including the collection of preliminary information via forms, files, and publications from the IIE department and data filtering and validation through questionnaires completed by individual researchers. The main classifications of the database are listed and briefly described, i.e., application areas, economic sectors, media classification, publications content (level of complexity), and research units. The database structure is also described, including the database management system, files and record definition, and software development. Preliminary results of database implementation are briefly described: (1) a compendium of bibliographic information on the RDDU; (2) quality assessment of the RDDU; (3) quality assessment of the media used to transmit the RDDU; (4) statistical reports on the structure and composition of the RDDU and media; and (5) a catalog of the media used to disseminate the RDDU that will be published. Tables showing the subdivisions of the database classifications and sample entries from the compendium are appended. (10 references in English, 4 in Spanish) (MES)