Using a factorial vignette survey and modeling methodology, we developed
clinical and information models -incorporating evidence base, key concepts,
relevant terms, decision-making and workflow needed to practice safely and
effectively -to guide the development of an
integrated rule-based knowledge
module
to support prescribing decisions in asthma. We identified workflows,
decision-making factors, factor use, and clinician information requirements. The
Unified Modeling Language (UML) and public domain software and knowledge
engineering tools (e.g. Protégé) were used, with the
Australian GP Data Model as the starting point for expressing information needs.
A Web Services service-oriented architecture approach was adopted within which
to express functional needs, and clinical processes and workflows were expressed
in the Business Process Execution Language (BPEL). This formal analysis and
modeling methodology to define and capture the process and logic of prescribing
best practice in a reference implementation is fundamental to tackling
deficiencies in prescribing decision support software.