> For the complete documentation index, see [llms.txt](https://kasebook.wisd.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kasebook.wisd.com/users-guide/relational-examples/basic-relationship.md).

# Basic Relationship

{% hint style="warning" %}
The updated documentation is now at [https://www.wisd.com/kase/docs](https://www.wisd.com/kase/docs/)
{% endhint %}

To track companies and their products:

* [ ] Make two Decks: **Companies**, and **Product Lines**.
* [ ] In Product Lines, add a Link field called "**make**" and select Companies as the **link to deck**.

That's it.

{% tabs %}
{% tab title=""Companies" deck" %}
![](https://370813096-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LRoyma-fFe6jCuOepJv%2F-LtY4c1eXFhyDAo7-FAe%2F-LtYE6T1k6UbY577k5SN%2FSimulator%20Screen%20Shot%20-%20iPhone%2011%20Pro%20-%202019-11-12%20at%2021.12.50.png?alt=media\&token=e643efe9-8d82-43cb-8725-cafbf004333b)
{% endtab %}

{% tab title=""Product Lines" deck" %}
![](https://370813096-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LRoyma-fFe6jCuOepJv%2F-LtY4c1eXFhyDAo7-FAe%2F-LtYEN7NGS4ZfKfUmXe6%2FSimulator%20Screen%20Shot%20-%20iPhone%2011%20Pro%20-%202019-11-12%20at%2021.15.09.png?alt=media\&token=f2d654d3-f976-424b-83ee-0dfd5e01598c)

{% endtab %}

{% tab title=""make" field" %}
![](https://370813096-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LRoyma-fFe6jCuOepJv%2F-LtY4c1eXFhyDAo7-FAe%2F-LtYEX3ahAaPAYi81gDi%2FSimulator%20Screen%20Shot%20-%20iPhone%2011%20Pro%20-%202019-11-12%20at%2021.14.13.png?alt=media\&token=a88107cc-ad3c-41ee-952c-4149847d0ce0)
{% endtab %}
{% endtabs %}

Now that a relation is defined, any Card in Product Lines can link to a Companies card, establishing a two-way relationship:

{% tabs %}
{% tab title="1" %}
![](https://370813096-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LRoyma-fFe6jCuOepJv%2F-LtY4c1eXFhyDAo7-FAe%2F-LtYFepNdOj4xPnhCQ9z%2FSimulator%20Screen%20Shot%20-%20iPhone%2011%20Pro%20-%202019-11-12%20at%2021.35.38.png?alt=media\&token=2fefa935-58f8-4363-8155-52549e20b18c)
{% endtab %}

{% tab title="2" %}
![](https://370813096-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LRoyma-fFe6jCuOepJv%2F-LtY4c1eXFhyDAo7-FAe%2F-LtYG4VEqL2XJURPy_43%2FSimulator%20Screen%20Shot%20-%20iPhone%2011%20Pro%20-%202019-11-12%20at%2021.17.50.png?alt=media\&token=e029778b-808f-4ebb-94d1-d8755e25018c)
{% endtab %}
{% endtabs %}

From the other direction, any Companies card can easily browse to all Product Lines that belong to the company:

{% tabs %}
{% tab title="1" %}
![](https://370813096-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LRoyma-fFe6jCuOepJv%2F-LtYbAUYPAb6apC5Y9bS%2F-LtYbRB6pnRdxRfOAv2k%2FSimulator%20Screen%20Shot%20-%20iPhone%2011%20Pro%20-%202019-11-12%20at%2021.20.29.png?alt=media\&token=3f79baec-8b5d-4072-810f-05dc1ac0ab00)
{% endtab %}

{% tab title="2" %}
![](https://370813096-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LRoyma-fFe6jCuOepJv%2F-LtY4c1eXFhyDAo7-FAe%2F-LtYGVehltEwFw9ZYWD9%2FSimulator%20Screen%20Shot%20-%20iPhone%2011%20Pro%20-%202019-11-12%20at%2021.26.00.png?alt=media\&token=2cdad16e-5128-4774-b173-4dcfb9bf47e6)
{% endtab %}
{% endtabs %}