
Our system uses the **CarePlan** and **PlanDefinition** resources to model care flows, based on the FHIR standard:
- **PlanDefinition**: A care flow that you design in Awell Studio. See [Awell Studio](/awell-studio/docs/getting-started/studio-introduction) for more information on how to design care flows.
- **CarePlan**: A care flow that has been started for a specific patient using the Awell Orchestration platform. See [Awell Orchestration](/awell-orchestration/docs/getting-started/orchestration-introduction) for more information on how to orchestrate care flows.


The diagram below shows how these resources relates to one another.

<figure className="flex flex-col justify-center text-center">
  <a
    href="/images/care-flow-data-diagram.png"
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    <img
      src="/images/care-flow-data-diagram.png"
      alt="Care flow data diagram"
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  <figcaption className="dark:text-slate-400 pt-1">Care flow data diagram</figcaption>
</figure>

How is a care flow modeled in the Awell Ontology ?