What is the nature and use limitations of the access protocol.
Access to a resource may be limited by the specified communication protocol. In particular, we are worried about access to technical specifications and any costs associated with implementing the protocol. Protocols that are closed source or that have royalties associated with them could prevent users from being able to obtain the resource.
i) A URL to the description of the protocol
ii) true/false as to whether the protocol is open source
iii) true/false as to whether the protocol is (royalty) free