Authors:
Hanna Kozankiewicz
1
;
Krzysztof Stencel
2
and
Kazimierz Subieta
3
Affiliations:
1
Institute of Computer Science, Polish Academy of Sciences, Poland
;
2
Institute of Informatics, Warsaw University, Poland
;
3
Polish-Japanese Institute of Information Technology, Poland
Keyword(s):
Workflow, query language, object-oriented, distributed system, pre-condition, post-condition, SBA, SBQL.
Related
Ontology
Subjects/Areas/Topics:
Applications
;
Artificial Intelligence
;
e-Business
;
Enterprise Information Systems
;
Government
;
Knowledge Management and Information Sharing
;
Knowledge-Based Systems
;
Social Information Systems
;
Social Networks and Organizational Culture
;
Society, e-Business and e-Government
;
Symbolic Systems
;
Web Information Systems and Technologies
Abstract:
We describe a new paradigm of declarative workflow, where an activity is modelled as an object which can
have other activities as subobjects. All activities act in parallel and have pre- and post-conditions
determining when they are to be started and when they are to be terminated. The proposal is based on the
Stack-Based Approach (SBA) to object-oriented query languages, query language SBQL and updatable
SBQL views. The idea is currently implemented within the European project eGov Bus.