[houshuang]

One neat thing about live collaboration is that every single edit is stored. This enables some nice things, like seamless replay of the entire document editing history. We've been working for a while on trying to analyze edit histories, to see if we could predict which stage of editing a document is in, which writing strategy users use, how a small team is collaborating etc. (Main purpose is to support teachers using this with student groups). We have some code here that works with Etherpad and ShareDB (https://github.com/chili-epfl/FROG-analytics), and happy to share preprints with anyone interested.

[rodneyt]

Hi Houshuang - very interested in this area. My company produces a web app for document-based collaboration in Higher Education (working with Universities in Australia and NZ over the last 10 years). We are also research-active and involved in collaborative research projects with a number of Unis. Please contact me via my profile. ~ Rodney

[nateps]

Hey houshuang! Thanks for mentioning this. I do think that replay and the potential to invert operations (including some operations and not others) is a very interesting feature of OT and we use it at Lever quite often. It is incredibly useful when doing enterprise customer support in addition to something that you can build user-facing features around.