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FIGURE 9.2
Objective view of workl ows.
The processes that create the objects are expressed using the links
between them. Both transactional view of workl ows and objective view
of workl ows can be transformed to classical WFMSs that are deployed
under most of current applications such as commerce and research types.
Whatever view is adopted, a DBMS itself can be treated as a WFMS, offer-
ing much of the needed functionality with respect to process manage-
ment without external software support [6]. Furthermore, almost all of the
critical functionalities missing in the conventional DBMS can be easily
provided with minimal, natural extensions that remain faithful to the
philosophy of database technology.
The main benei ts of this DBMS-based technique can be summarized as
follows:
•
Reduced implementation effort: In terms of many of the required
functionalities, it does not require any external workl ow tools.
Real-time information availability: All the aspects of the work-
•
l ow are treated using database queries expression directly.
Consistency in workl ow management: In any DBMS, the access
•
to the database systems depends on a unii ed access language
that is used throughout the dei nition, execution, and monitoring.
The same applies to the DBMS-based system.
Increased optimization opportunity: The whole control and
•
manipulation are managed by a DBMS like WFMS, the optimizer
will have a global view of the entire system.
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