How to know what to do An overview of system planning for GIS implemetation is here . Creates specification for the system. Get Initial Products 4. Operate and maintain GIS Some implementation strategies are described here Another interesting text on dependency of GIS success on implementation strategies 7. Participants in the system are custodians of geographic information.
Information sharing is critical.
Look at the experience of Wisconsin in sharing geographic infromation and the land information integration plan , here is experience of European community in information integration. Another text describes GIS implementation in developing countries , from the UN perspective.