Sal, I did not confuse the messenger with the message. I am grateful to you for passing such things along for our consideration and don't hold you responsible for defending them. Jeff --------------------------------- Jeff Stollman stollman.j@gmail.com 1 202.683.8699 Truth never triumphs — its opponents just die out. Science advances one funeral at a time. Max Planck On Mon, Feb 29, 2016 at 11:01 AM, Salvatore D'Agostino <sal@idmachines.com> wrote:
Hi Jeff,
I appreciate the points, I hope you realize I am just passing along reference material and I don’t think this is some unified 7 layer model. Really just throwing it out and I recognize someone was likely riffing on 7 layers. The points you raise are good ones. IoT is a huge umbrella covering probably too many use cases, many in which there is often nesting, so taking a vehicle for example its sensors provide input to controller but also to performance measurement and maintenance databases which can then bubble up to a next layer (collision sensor, to ABS, to Cruise Control, to Heads Ups Display). So even in a given layer a lot can take place.
Pretty useful for a discussion group though, or at least that was my intention.
Best,
Sal
*From:* j stollman [mailto:stollman.j@gmail.com] *Sent:* Monday, February 29, 2016 10:48 AM *To:* Salvatore D'Agostino *Cc:* dg-idot@kantarainitiative.org *Subject:* Re: [DG-IDoT] IoT 7 layer pic
Sal,
Thank you for forwarding this graphic.
I find this graphic intriguing, and a good straw man starting point. But I am concerned that it is misleading. In the enthusiasm to try to leverage the successful pattern of the OSI model, we are force-fitting IoT into a model that doesn't quite work.
Specifically, I have the following immediate concerns:
1. IoT in this model seems to be limited to "sensors". I don't see how the Big Data layers apply to "actuators." And I don't see how the "processors" conform to any but Layers 5 and 6. Perhaps I am being narrow-minded in clinging to the notion of IoT as representing sensors, processors, and actuators (and applications?). 2. I am uncomfortable with the notion that the Cloud layer is a necessary layer. Many IoT implementations are highly localized and will not require the Cloud or Big Data.
I suspect that other concerns will arise as we look at it longer.
I find that this model represents one view on one part of IoT. It may be a big and important part. But I don't think it is adequate to define all of IoT. And I fear that it will force people into thinking about IoT in only this way and lose sight of effective and efficient solutions that do not conform to this model.
Jeff
---------------------------------
Jeff Stollman stollman.j@gmail.com 1 202.683.8699
Truth never triumphs — its opponents just die out.
Science advances one funeral at a time.
Max Planck
On Mon, Feb 29, 2016 at 8:54 AM, Salvatore D'Agostino <sal@idmachines.com> wrote:
[image: https://image-store.slidesharecdn.com/6eb9890a-3615-4dd8-9cd7-7e56d0be5518-o...]
Salvatore D'Agostino
IDmachines LLC
1264 Beacon Street, #5
Brookline, MA 02446
USA
http://idmachines.blogspot.com
@idmachines
+1 617.201.4809 ph
+1 617.812.6495 fax
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