# Solid Interoperability Panel
April 6th, 2021

## Meeting
* Call: https://meet.jit.si/solid-data-interoperability

## Present

* Justin B
* Eric P
* Elf Pavlik
* Matthieu B
* Hannes
* Dmitri Z

## Agenda

- Announcements
- See links at https://github.com/solid/data-interoperability-panel#solid-application-interoperability
- [Interop Spec Video #1](https://solid-interop-public.s3.amazonaws.com/application-interoperability-walkthrough-part-1.mp4)
- [Interop Spec Video #2](https://solid-interop-public.s3.amazonaws.com/application-interoperability-walkthrough-part-2.mp4)
- Issues
- [consider alternatives for app registration discovery #91](https://github.com/solid/data-interoperability-panel/issues/91)
- Pull requests
- Topic Items
- Shape Trees Update
- Discussion on client library implementation

## Minutes

### Feedback on Interop Videos

HR: Will be interesting to see how the primer and the videos / spec combine together. Currently what is missing is the "Hello World" that helps to pull it all together, and that could be really beneficial.

EP: Could we reconsider the application discovery - do we need the hash url template?

EP: Can we polish the sequence diagram - fix the ambiguity between user and webid document?

HR: What's the pattern for Trusted Agents?

### Shape Trees

JB: Good progress in recent presentation with Timbl / endorsement of shape trees as part of interop / data validation

- Community Server Implementation - server-side shape tree validation using [shapetrees.js](https://github.com/shapetrees/shapetrees.js)
- Corresponding submission to the solid core protocol for performing shape tree validation (including a syntax and method for performing shape validation)
- corresponding primer for the specification

EP: Providing a demo of shape path

https://shexspec.github.io/ShapePath.js/demo/dist/index.html

Action Item: Eric to adjust his demo to use the projects / tasks / releases example that we use in presentations, etc.