MGA: Rule-based specification of active object-oriented database applications

Runtime verification of programs using rule-based active system

Extended Aggregation Relationships for Process Specification and Enactment in Active Databases

Process specification in a variety of domains, such as experiment modeling, work-flow modeling, and processflows in semiconductor manufacturing, is typically characterized by recursive specification in terms of sequences and alternatives. A variety of models have been proposed for the specification of such processes. In particular, object-oriented techniques have been used for achieving various...

TriGSflow Active Object-Oriented Workflow Management

We present the multi-paradigm architecture TriGSflow for a workflow management system. TriGSflow is based on an active extension of the commercial object-oriented database system GemStoneTM. TriGSflow takes full advantage of the capabilities of the underlying database system such as reliability, recovery, transaction management, and authorization. At the current stage of implementation the nove...

Beyond Coupling Modes: Implementing Active Concepts on Top of a Commercial ooDBMS

Active object-oriented database systems are especially useful in the area of nonstandard applications in order to implement an event-driven and constraint-driven system environment. Several approaches exist in literature integrating active concepts into object-oriented databases. For most systems, their knowledge model is based on Event/Condition/Action rules, and their execution model is based...

Temporal Rule Specification and Management in Object-oriented Knowledge Bases

There have been many recent research efforts on temporal databases for managing current and historical data and on active databases for monitoring real-world events as well as data conditions/constraints by rules and triggers. However, the specification and management of temporal rules in active object-oriented databases has not been investigated. This paper deals with the specification and man...