  Nowadays, lots of open source communities adopt forum to acquire scattered
stakeholders' requirements. But the requirements collection process always
suffers from the unformatted description and unfocused discussions. In this
paper, we establish a framework ReqForum to define the metamodel of the
requirement elicitation forum. Based on it, we propose a lightweight
forum-based requirements elicitation process which includes six steps:
template-based requirements creation, opinions collection, requirements
collection, requirements management, capability identification and the
incentive mechanism. According to the proposed process, the prototype
SKLSEForum is established by composing the Discuz and its existed pulg-ins. The
implementation indicates that the process is feasible and the cost is economic.
