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:

 

Salvatore D'Agostino

IDmachines LLC

1264 Beacon Street, #5

Brookline, MA  02446

USA

http://www.idmachines.com

http://idmachines.blogspot.com

@idmachines

+1 617.201.4809 ph

+1 617.812.6495 fax

 

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