> For the complete documentation index, see [llms.txt](https://docs.natsec.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.natsec.io/about/elements/data/tags.md).

# Tags

{% hint style="warning" %}
The idea of **`Tags`** is one we feel is important, but right now they are sort-of all over the place and we need to find a good balance between the [Google Sheets](/learning/tools/google-sheets.md) approach and something much more robust. We think [Kumu](/learning/tools/kumu.md) offers some options with JSON blueprints, but need to explore further.
{% endhint %}

`Tags` allow for the easy filtering of [Entities](/about/elements/data/entities.md) based on a single field with multiple keywords (e.g. `Kessel Run` is an `Entity` that might have the `Tags` `Military` `Air Force` `Software`, and so on. 

By clicking on or filtering by a `Tag` one can easily see all the `Entities` associated with it in the [Data](/about/elements/data.md), [Graph](/about/elements/graph.md), [Map](/about/elements/map.md), and [Timeline](/about/elements/timeline.md).

### Problems with Tags

Unfortunately, executing this in [Google Sheets](/learning/tools/google-sheets.md) using [Kumu](/learning/tools/kumu.md) is sort-of a challenge because:

1. [Kumu](/learning/tools/kumu.md) uses `|` connectors in a single field to separate `Tags` (which means you cannot run a simple `Data Validation` rule against a list of keywords like we do with `Labels`, `Categories`, and `Connections`.
2. The whole idea of `Tags` depends on a common set of terms... but how do you know whether to use `Software` or `DevSecOps` or `Technology` or something else? Who makes these decisions and how do the uninitiated learn? (NOTE: We will keep this page updated with our hypotheses and approaches).

### Future Plans for Tags

We are very open to ideas and existing best practices here, so please [Contact Us](/about/contact-us.md) if you have ideas or examples to share! We think our [Partners](/about/support/partners.md) may be able to help with this as well.