This presentation demonstrates the utility of an analytic framework that can be used to support open collaboration for needs assessments. Open collaborations systems are technologically mediated environment that supports collective knowledge production via online platforms, e.g. Wikipedia and the open-source software development. It has untapped potential for participants to collectively collate, analyse, produce and disseminate knowledge about client needs and service gaps, but would require a way to manage and coordinate the complex knowledge work involved. The analytic framework developed was originally used to facilitate face-to-face collaboration between researchers, governmental agencies and practitioners in various needs assessment projects (e.g. ex-offenders, people with disabilities and the elderly) in the context of the social service sector in Singapore. However, this can be potentially extended to an online platform to allow crowdsourcing for more meaningful participation from multiple stakeholders so that the knowledge base can grow coherently and systematically.#opencollaboration