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Workflow Metadata

Workflow Metadata. John Koisch, Guidewire Architecture. Overloaded Workflow. Workflow has at least four connotations that could be in play: Clinical Workflow – what a care giver does at the point of care

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Workflow Metadata

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  1. Workflow Metadata John Koisch, Guidewire Architecture

  2. Overloaded Workflow • Workflow has at least four connotations that could be in play: • Clinical Workflow – what a care giver does at the point of care • UI Workflow – the way User Interfaces support users managing and moving between sets of information • Business Process Workflow – usually captured in BPMN or Activity diagrams, with underlying process semantics captured • Automated Managed Workflow – configurations on software components that handle long running transactions and their state semantics

  3. Behavioral Framework • Provides facilities for decomposing systems in a distributed environment • Separates based on Accountability • How to describe what a system does? • What system does what when? • How can systems be bound to various business processes?

  4. BF and Workflow • The BF can describe both Business Process Workflow and Automated Managed Workflow • Interoperability Specifications, when complete, tie ODP Enterprise Viewpoint with • Computational + Informational Correspondence view • Computational + Informational + Engineering Correspondence view • This allows Community Obligations to be bound to systems • Contract Driven view • Assumption: that most discussions are about Automated Managed Workflow • Choreographies or Orchestrations

  5. Interoperability Specifications • Interoperability Specifications are described in the BF as Solution Specifications • The BF provides a framework for discussing these in an technology / platform / environmentally neutral way • But to really get to usability, you have to see how Interoperability Specifications look within a given architecture • They look very different in a SOA than in a P2P environment • Responsibility is apportioned differently

  6. Interoperability Specifications and Contracted Obligations

  7. Interoperability Specifications assemble expected behaviors

  8. Interoperability Specs in caCIS • Relies on Emerging Ontologies for • Behavior • Information • These appear in the deployed architecture very often as patterns • QRL

  9. QRL • Query, Retrieve, Locate applies common behavioral semantics to Various Information types • This means the contract, and the context, is the same, regardless of information exposed • Common Error Handling • Common expectations of service • Information Model Resolution, e.g. • Common operations • Not tied to persistence • Not tied at specification time to information expression • Semantic Signifiers are used to express what is supported by a given QRL instance • Services are Self Describing

  10. One QRL Functional Profile • This Profile is QueryByParameter • Assumes infrastructure (knowledge by the client of the model) • However, contains operations to describe these things • Very similar to Data Services, but not tied to object models or persistence

  11. QRL is Useful • We use QRL in many places • It is not a generic CRUD solution • It is heavily contextualized

  12. QRL in the NCI • QRL would provide the underpinnings for distributed queries • Can be bound early or late to underlying information ontologies • Can categorize information endlessly in an extensible, reproducible way

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