Hi Gregg, George, I don’t know what you’ve discussed already so hopefully I’m not just adding to the confusion. And I’m certainly not the official answer on these identifiers (neither is in the Security Specification). That said, my understanding is this:
Platform ID is the OCF-specific ID that is unique to the Platform. So, multiple OCF Devices on a single OCF Platform will have the same Platform ID. PIID is the Protocol-agnostic ID that can be used by a Client to correlate multiple Platforms (OCF and non-OCF). So, multiple Platforms – one appearing as OCF and one appearing as AllSeen, for example – can be understood by a cross-protocol Client to be the same Platform. This helps the Client (for example) display just one set of Devices instead of both to the User. Thanks, Nathan From: [email protected] [mailto:[email protected]] On Behalf Of Nash, George Sent: Friday, March 23, 2018 4:35 PM To: Gregg Reynolds <[email protected]> Cc: iotivity-dev <[email protected]> Subject: Re: [dev] difference between "Platform ID" and "PIID" ? No not at all. I was just letting you know that I don’t really have much more I can do to help reduce your confusion. You are also hitting the areas that I am confused about as well. George From: Gregg Reynolds [mailto:[email protected]] Sent: Friday, March 23, 2018 4:32 PM To: Nash, George <[email protected]<mailto:[email protected]>> Cc: Joo-Chul Kevin Lee <[email protected]<mailto:[email protected]>>; iotivity-dev <[email protected]<mailto:[email protected]>> Subject: Re: [dev] difference between "Platform ID" and "PIID" ? On Fri, Mar 23, 2018, 6:23 PM Nash, George <[email protected]<mailto:[email protected]>> wrote: I was attempting to do my best to describe the difference based on the documentation. There are definitely some holes in my knowledge. I was hoping that someone else would add onto my description and add clarification since I was really limited by what was provided from the documentation. Hope you did not take my response as a bitch about you - not at all! Just trying to understand. G
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