The TSC Charter defines two Community roles:

So what does a Contributor and a Committer actually do?

See the Community Roles#Project Roles section below for examples of some of the things contributors and committers do in many open source communities.

Release Manager

The Release Manager guides the regular, timely release of the collection of projects that comprise our platform.  

The Release Manager takes the release plan defined and approved by the Technical Steering Committee and guides the  development community through the process and procedures needed to coordinate timely and regular software releases, follow-on stable releases, and manage any ad-hoc releases as required.

Primary Responsibilities:

TSC Subcommittee Roles

You don't have to write code to be a member of the community.  The Acumos TSC has established working subcommittees such as Architecture.

You can view their wiki spaces by accessing the Committees drop-down menu item in the top, gray navigation bar.

A working subcommittee generally has weekly meetings run by a Chair or Co-Chairs. 

Project Roles

The roles of PTL, Committer, and Contributor were approved by the TSC on 14 May 2018.