# Course resources (ERD)

The UCDM includes a number of entities to represent Course resources. These entities are typically administrative in nature and designed to enable high-level aggregation and institution-wide reporting of learning outcomes, activities, and other data.

## Entities <a href="#courseresources-erd-entities" id="courseresources-erd-entities"></a>

The Course resource entities in the Unizin Common Data Model are as follows:

<table data-full-width="true"><thead><tr><th width="149.33333333333337">Entity</th><th>Definition</th><th>Data dictionary documentation</th></tr></thead><tbody><tr><td>File</td><td>An object that contains information in a self-contained manner. Files may be documents, images, recordings, and so on.</td><td><a href="https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#file">https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#file</a></td></tr><tr><td>Wiki</td><td>A site that allows collaborative editing of its content and structure by its users.</td><td><a href="https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#wiki">https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#wiki</a></td></tr><tr><td>Wiki page</td><td>A particular page in a Wiki.</td><td><a href="https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#wiki_page">https://docs.udp.unizin.org/ucdm/data-dictionary-2.0.html#wiki_page</a></td></tr></tbody></table>

## Entity Relationship Diagram (ERD) <a href="#courseresources-erd-entityrelationshipdiagram-erd" id="courseresources-erd-entityrelationshipdiagram-erd"></a>

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

<figure><img src="https://3709019308-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FKYwtHNGgdPXS3PWAlZUr%2Fuploads%2Fgit-blob-404ef72ce9af2b4d5b75749b4b693240a86b09c2%2F20448120.png?alt=media" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
**Academic structures ERD only**

This diagram only represents entities in the Course resources section of the Unizin Common Data Model. Any relationships with entities outside of the Course resources section of the UCDM are not shown here.
{% endhint %}


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