Standards Frameworks
- National Information Exchange Model
- European Interoperability Framework for eGov
- X-Road in Estonia (more info)
- GEMMA - Dutch GEneral Municipal Model Architecture (pdf). GEMMA includes the Standard Uitwisselings Formaat (StUF) which is an XML exchange format using SOAP and WSDL. The main website seems to have moved to KING
- Canadian Municipal Reference Model (early stages of development)