# Course structures (ERD) The UCDM includes a number of entities to represent Course structures. These entities represent the organizing pedagogical structures of courses in digital learning environments. ## Entities The Course structure entities in the Unizin Common Data Model are as follows:

Entity	Definition	Data dictionary documentation
Course offering	An institutional offering of organized subject matter and learner activities chosen by learners in an academic term.	https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#course_offering
Course section	An administrative and instructional sub-organization of a Course offering. Instructors may be assigned to one or more sections of a particular Course offering.	https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#course_section
Role	The function assumed by a Person in a particular situation.	https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#role
Module	A means of organizing content to help control the flow of a course.	https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#module
Module item	A specific piece of course content in a Module.	https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#module_item
Module item completion	An indication that a Person has completed a particular Module item.	https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#module_item_completion
Module progression	The progress that a Person has made towards completing a specific Module.	https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#module_progression
Learner group	A pedagogically-oriented group of learners in a course. This concept is distinct from Course section, which is an administrative grouping of learners.	https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#learner_group
Learning outcome	Measurable statements that express student knowledge or a student skill.	https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#learning_outcome
Learning outcome item response	The result of a learner responding to a Learning outcome question.	https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#learning_outcome_item_response
Learning outcome rubric criteria	The criteria by which a learner will be assessed on a given Learning outcome.	https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#learning_outcome_rubric_criteria
Learning outcome result	The result of a learner being assessed on a Learner outcome.	https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#learning_outcome_result
Learning outcome group	A grouping of related Learning outcomes.	https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#learning_outcome_group
Annotation	A web resource with a body, which is a comment or other descriptive resource, and a single target that the body is somehow about.	https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#annotation

## Entity Relationship Diagram (ERD) The following Entity Relationship Diagram (ERD) represents the UCDM's Course structure entities and their relationships.

{% hint style="info" %} **Academic structures ERD only** This diagram only represents entities in the Course structures section of the Unizin Common Data Model. Any relationships with entities outside of the Course structures section of the UCDM are not shown here {% endhint %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://resources.unizin.org/products/data-and-analytics/unizin-data-platform/unizin-common-data-model/course-structures-erd.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.