Overview of the TOOBIS project: from a temporal extension of ODMG to a patterns-based approach extending the OO model
This paper deals with a temporal extension to the ODMG-93 standard, as this has been specified in the TOOBIS project, and an innovative way of extending the OO conceptual model with temporal features. The temporal extension of ODMG is composed of three components: the temporal Object Data Model (TODM), and the Definition & Query Languages (TODL, TOOL). This extension has been implemented within TOOBIS over a commercial OODBMS, reinforcing and validating the effort of standardisation and portability of this extension. We have defined within the TOOBIS project a set of patterns supporting the extension of any OO model with temporal features, and the first illustration was made for the TOOBIS method definition itself based on the O* method(1, 2).
toobis odmg patterns-based approach object-oriented