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Both Mosaic and OpenComponents are web component oriented MFE frameworks that do not depend on any JS framework. Mosaic is a newer framework with a smaller community. Documentation is not as robust and the project lacks the maturity to be a realistic candidate for the open edX platform at this stage. OpenComponents originated at OpenTable in 2014 and has been in active development since. While the platform is stable, the component based approach is very different from open edX’s current development and deployment models and the anticipated conversion cost is a greater. The solution also requires a live Registry/CDN service to host components, and applications are composed at runtime by querying the registry API. The requirement to deploy additional infrastructure to support the front end is not desirable.

Given the considerations listed above, this discovery process will focus on Piral and single-spa (as well as the Qiankun derivative) as candidate solutions.