International Conference on Management of Dataarchive Proceedings of the 1980 workshop on Data abstraction, databases and conceptual modeling table of contents
USC/Information Sciences Institute, 4676 Admiralty Way, Marina dal Ray, California
Sponsors
NBS :
National Bureau of Standards SIGART:
ACM Special Interest Group on Artificial Intelligence SIGMOD:
ACM Special Interest Group on Management of Data SIGPLAN:
ACM Special Interest Group on Programming Languages
Our group is perhaps unique in that our approach to modeling dynamic systems has a strong heritage from all three fields represented at this workshop. Each of the fields has contributed four major concepts to our modeling approach.From the Data Base field, we have adopted the idea of a single global model (data base) which defines the state of the system. Fully associative relations among typed atomic objects (no internal structure) constitute the entire state description. An information model (query language) is defined for extracting information from the state (such as one or all objects satisfying some description, or the truthfulness of some proposition). Finally, the model is updated via transactions, so that either the entire operation is completed successfully, or the state is unchanged.