# Citations and references - Care Plan example

**URL:** https://discourse.openehr.org/t/citations-and-references-care-plan-example/3122
**Category:** Clinical
**Created:** [1 November 2022 14:54 UTC](https://discourse.openehr.org/t/citations-and-references-care-plan-example/3122 "2022-11-01T14:54:05Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![thomas.beale](https://discourse.openehr.org/user_avatar/discourse.openehr.org/thomas.beale/32/35_2.png) [@thomas.beale](https://discourse.openehr.org/u/thomas.beale)
#### Post date: [1 November 2022 14:54 UTC](https://discourse.openehr.org/t/citations-and-references-care-plan-example/3122/1 "2022-11-01T14:54:06Z")

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In a similar vein to the [post on citations in BMI](https://discourse.openehr.org/t/citations-and-references-bmi-example/3117), here is another example - Care Plan. Please refer to the BMI post for the general question. Here I will just post a graphic showing what I take to be the kind of thing @joostholslag and other clinical modellers want to do to represent a Care Plan. (Don’t worry too much about whether my Care Plan design is right or not, just meant to be illustrative).

 ![care_plan](https://discourse.openehr.org/uploads/default/original/2X/8/8dc071d175c8d20ab6d3af059eb53d0a7fe559b2.png)

In this diagram, the hollow boxes are ‘virtual’ Entries (using @ian.mcnicoll 's terminology), either EVALUATION (green) or INSTRUCTION (red), that point to ‘real’ Entries elsewhere in the same EHR.

Most likely, the reference in each case needs to indicate:

- the direct target, which is a whole EVALUATION or INSTRUCTION, and
- the parent.

Someone archetyping this reference would probably therefore want to constrain:

- the reference to be a certain archetype/RM type, e.g. `EVALUATION.problem_diagnosis`
- a parent object to be a certain archetype/RM type e.g. `COMPOSITION.problem_list`.

The meaning of such a constraint would be: this link at run time can only point to a problem/diagnosis EVALUATION, within a problem list COMPOSITION.