Personal navigation services Standards and interfaces
VTT Information Technology
service protocol: HTTP, WSP, SMS
markup: XML, HTML, XHTML, WML
transfer protocol: TCP/IP, SS7
presentation: XSSL, UAPROF, ...
vector format: SVG, GML, NVML, POIX ...
image format: GIF, JPG, PNG,...
metadata: RDF, DSML, GeoTAG, ...