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Transforming Data Models: From IEPDs to Micro-Services

Learn how to shift from exchange-based IEPDs to service-based architecture for improved data model sharing and reusability. Discover the advantages, limitations, and steps to adapt to functional decompositions, creating new business processes. Contact Tom Carlson for more information.

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Transforming Data Models: From IEPDs to Micro-Services

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  1. Components and Reuse Tom Carlson National Center for State Courts

  2. The Problem • The problem • IEPDs were being developed from scratch, often in isolation • Model gives loads of flexibility • Similar concepts implemented in dissimilar ways • Short example: PersonFullName versus PersonGivenName combined with PersonSurName • Makes interoperability hard

  3. What We Did • Developed a bunch of court IEPDs • Looked for commonalities • For example, most included: • People of some sort • A court of some sort • Built court components using those commonalities

  4. What It Looks Like • Data Modeler Domain Model Thingie

  5. What It Looks Like • Data Modeler Domain Model Thingie

  6. Limitations • Locked in a proprietary tool • It’s a nice tool, but it’s proprietary • No mechanism for sharing these components, outside of the proprietary tool • No mechanism for using components built by others in other ways

  7. Why It Doesn’t Matter • Moving to a Service Oriented Architecture resolves the problem • Exchange-based IEPDs will become Service-based IEPDs • Those services will be composed of micro-services • Composability is a principle of SOA • Think fractals • Those micro-services become the components • The process of defining these services creates the components too! Sweet!

  8. What We All NeedTo Do Instead • Stop defining IEPDs in terms of exchanges • Services based on “as is” exchanges result in services that codify “as is” processes • Need to be able to create “to be” processes from the services • Think of a code library • If based on legacy code… • …then will only be good for coding legacy apps

  9. What We All NeedTo Do Instead • Start doing Functional Decompositions of the Business • What is it that we really do • From that decomposition, we can determine the services available • Then we can create new business processes from these services • This could be done with JIEM, with some significant changes • We will need the Justice Reference Architecture (JRA) in order for this to happen

  10. For More Information • Contact Me: • Tom Carlson • tcarlson@ncsc.dni.us • For Service Oriented Architecture (SOA) • Scott Fairholm • sfairholm@ncsc.dni.us • For Justice Reference Architecture (JRA) • Tom Clarke • tclarke@ncsc.dni.us

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