摘要 |
The system includes a constraint-based registry server and a plurality of devices. The constraint-based registry server is coupled to the plurality of devices for publishing or registering spots, managing places and authenticating membership and places. The constraint-based registry server includes a data store for constraint metadata, an authentication module, a spot manager module, a place manager module and a query response module. The devices are adapted to collect field values, create spots, access places, and interact and share information with other spots. In one embodiment, the devices include a constraint collection module, a spot creation module, a query module, a challenge creation module, a presentation module, a challenge response module, a spot action module and a spot communication module. The present invention also includes a number of methods for creating a spot, for generating and approving a challenge, for direct communication or sharing of documents, for performing an action based upon information space membership and for searching for available places.
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