The theory of economic information systems

The characteristic components of economic information B system (EIS) - computer systems, databases, software obespeche¬niya; The stages of their life cycle - design, implementation, operation and development. Modeling for information in the EIS pred¬polagaet skntaksicheehih use data models (relational, hierarchical and network) and semantic models (semantic networks, frames, etc.). Modelling of processes based on Petri nets. The theoretical design methods are illustrated by practical tasks. To illustrate the data processing methods used in Pascal, SQL, dBASE, and Prolog.