> For the complete documentation index, see [llms.txt](https://w3c.openactive.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://w3c.openactive.io/meetings/2021-04-07-updates-to-the-opportunity-specification.md).

# 2021-04-07 - Updates to the Opportunity specification

## Summary

Discussion focused on three proposed changes to the Opportunity specification:

* Describing difficulty and intensity
* Describing the surface of pitches and other sporting facilities
* Adding a `lastModified` or similar attribute to data items

A summary of the discussion can be found in the [Call Notes](https://docs.google.com/document/d/1do7wcPLRiFtLGxncAq5nXSo5HaibQ4HkoK1ZFkv3CNs/edit?usp=sharing).

## Slides

{% embed url="<https://docs.google.com/presentation/d/1mo-A8-ztPKz7sivkfAaC81Kt6cW88R97D7tq0-0iYeA/edit?usp=sharing>" %}

## Video

{% embed url="<https://youtu.be/fiZ7UJV56vU>" %}