The actual task in the field of instrument making--automation of technological preparation of production of perspective thin-film electroluminescent (TFEL) indicators is considered. The main problems in the field is high labor-intensive characteristic of calculations, tardiness of process of calculations, and also the large volume of the processed data connected by that today the large number of methods and means of a thin-film sputtering are developed. For the purpose of the solution of the problems the automated system of technological preparation of production of thin-film electroluminescent indicator devices--TFEL DDS--was developed. The main features of this system are the automated design of a configuration and a choice of materials of layers of an electroluminescent indicator element taking into account results of the analysis of indicators of TFEL structure, and also drawing up a package of design-technology documentation on the designed TFEL indicator.