More background on building collaboration into Sway - Office Blogs

Groovy...

"We’re excited to announce today that Sway is now collaborative and lets you create and edit together with others. Check out this blog post for more detail.

One of the great things about working at Microsoft is that you can build on the work of other teams. Several members of the Sway team formerly worked on Word and OneNote. We’re able to learn from that experience as well as build on some shared pieces of technology in Office. We’ve built the core collaboration infrastructure for Sway based on the co-authoring technology pioneered in OneNote several years ago, which has been lighting up across Office over the last number of years. Building on our shared technology helps us not only get these features into your hands sooner, but also addresses the really hard challenges. For example, while it is not uncommon for online editing tools to support co-authoring these days, especially tools with only basic feature sets, it is much harder to find tools that reliably support this scenario when the authors go offline."

More background on building collaboration into Sway - Office Blogs