A working group is a group of experts working together to achieve specified goals. Such groups are domain-specific and focus on discussion or activity around a specific subject area. The term can sometimes refer to an interdisciplinary collaboration of researchers, often from more than one organization, working on new activities that would be difficult to sustain under traditional funding mechanisms (e.g., federal agencies). Working groups are variously also called task groups, workgroups, technical advisory groups, working parties, or task forces.
The lifespan of a working group can last anywhere between a few months and several years. Such groups have the tendency to develop a quasi-permanent existence when the assigned task is accomplished; hence the need to disband (or phase out) the working group when it has achieved its goal(s).