This paper aims to propose PMWF model, a new workflow model to automate ubiquitous policy making processes and facilitate citizen participation. While workflow technology has been widely adopted in public sector, the use of technology is mostly limited to supporting back-end administrative business processes. PMWF model targets front-end policy making processes that require active participation of large number of citizens. Automatic delivery of relevant policy issues into citizen’s life is expected to enhance their participation in policy formulation and implementation processes. PMWF model provides modelling constructs to link back-end admin tasks by policy makers to front-end opinion tasks whose main actors are citizens. The core constructs for linkage is opinion-tag which contains policy issues and is attached to geographical objects so that citizens can identify relevant policy issues in the middle of their every-day life patterns. The proposed model is applied to real world policy making processes in the UK and Turkey to show its generality.