Virtual Meetup: MetaEdit+ and collaborative language engineering

Hi Community,

I am happy to announce that this Thursday (the 8th of April), will hold a discussion Juha-Pekka Tolvanen about MetaEdit+ and collaborative language engineering.

Also, remember that in December, we changed the link to join the Meetup!

Almost all software development activities require collaboration and language engineering is no exception. First, there is a need for collaboration among language engineers as it is not realistic to expect that one can master all. Second, there is a natural need for collaboration among language users like work and version jointly created models. Finally, there is a need for collaboration among language engineers and language users: Not only when languages are originally designed but more importantly when they are maintained along with the work already created with them.

In this talk, we present the MetaEdit+ tool that enables real-time collaboration for both language engineers and language users. These collaborative features are applied in industrial projects, like creating in the automotive domain a large language (with over 20 integrated languages) by several language engineers. Also, we have applied collaborative features in scenarios where 2 engineers modify the language based on the feedback given by 20 developers using the language at the same time. These collaborative features have been working well and lead almost automatically to better quality languages that meet the users’ needs.

Juha-Pekka Tolvanen works for MetaCase and has acted as a consultant on language engineering since the ’90s. For more, see:

And if you are thinking of proposing a talk, it is time to come forward. Just let me know by replying to this message.

How to connect

To avoid other security issues is now necessary to register for the meeting. The registration should be necessary just once and be valid for all the next meetings you will participate in. I understand it is a little extra effort, but it would avoid problems like the ones we encountered:

Registration for the Virtual Meetup

After registering, you will receive a confirmation email containing information about joining the meeting. It will also permit you to add it to your calendar.


It is hosted on Zoom at 6 PM GMT+1/CET (you can use this link to figure out which time is in your timezone: The Time Zone Converter).


P.S. We get a recurring question: “Are presentations recorded?”. The answer is not, and the reasons are explained here On recording Virtual Meetups - #7 by voelter