A metadata model for semantic search of rule-based workflow implementations

Development of workflows and accumulation of open methods by scientific communities assumes their specification in open environment and their search to use them for problem solving. In this work, the Rule Interchange Format (RIF) dialects are used for workflow specification. Workflow elements are annotated with metadata to make their search in a subject domain possible. The metadata model required for semantic search includes description of workflow skeleton structure, binding of workflow elements with concepts of the domain, quality and provenance requirements to data and methods. Metadata are defined in terms of corresponding ontologies. Search for workflow implementations in a collection of methods for construction of a workflow on the basis of existing relevant components is demonstrated by an example.