Similar to Web Services, or P2P communication, there are problems with resource discovery. Possible methods include three types:
1. One or more central servers provide a list of resources to record all resource locations. Resource demand from server query activity resource information.
2. In the small-scale community, each body records surrounding resource information, broadcast resource information to all subjects when there is a new resource.
3. In the small-scale community, inquiry request, that is, the resource demand body is queried to the adjacent body, and if the main body accepts the query, if the resource returns to resource information, it will forward the query information to its neighbor.
In a network structure of some specific needs, resource query / discovery methods can be customized.
