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Re: [ontology-summit] [BigSystemsandSystemsEngineering]Systemofsystems

To: ontology-summit@xxxxxxxxxxxxxxxx
From: David Price <dprice@xxxxxxxxxxxxxxx>
Date: Tue, 07 Feb 2012 19:05:34 +0000
Message-id: <4F3175FE.4040800@xxxxxxxxxxxxxxx>
Hi Jack,

The investigation for NIST has one aspect looking at how SKOS might be used to link strong ontologies and other related artifacts to technical dictionaries. The point of the investigation is about the technology, so the INCOSE handbook could be replaced by another dictionary. I don't propose to do anything about POSIWID or the decades of other papers, approaches and books through which we'll have to wade. My purpose is to show how the results of those efforts can be shared, and related, using a 'Semantic Web Lite', concept-based technology rather than as PDFs, HTML or wiki pages. So, good questions but out-of-scope for my little experiment.

The handbook version I have is INCOSE‐TP‐2003‐002‐03.2.1, January 2011.

Cheers,
David

On 2/7/2012 6:31 PM, Jack Ring wrote:
Well, good luck, David. Wish you well.

Be aware that INCOSE's view of system reflects 1970 reductionist thinking regarding state-deterrmined systems. What shall you do about Stafford Beer's POSIWID, the purpose of a system is what it does, regardless of what the designers and users intended?

Does an air transportation system include air terminals, that little red truck that we left behind on take-off but is already there when we land, pilots and copilots each in various phases of their bio-rythms, aircraft manufactuers, airline operators, weather, cost of fuel?

In the supposed system of systems are the components and relationships dedicated to the purpose of the supposed SOS are may one or more also respond to other contexts and is the 1:n participation disjoint or simultaneous?

Is there a distinction between system and configuration? Note that even the INCOSE view uses "that accomplish a defined objective" so what shall you call it when it is not responding to a stimulus?

Anxiously await your interpretation of the INCOSE SE Handbook. I hope you are using the latest one.

Jack Ring


On Feb 7, 2012, at 10:54 AM, David Price wrote:

INCOSE says  the 'system' in 'systems engineering' means:

- an integrated set of elements, subsystems, or assemblies that accomplish
a defined objective. These elements include products (hardware, software,
firmware), processes, people, information, techniques, facilities, services,
and other support elements. (INCOSE) An example would be an air
transportation system.

System of system is then:

System‐of‐systems applies to a system‐of‐interest whose system
elements are themselves systems; typically these entail large
scale inter‐disciplinary problems with multiple, heterogeneous,
distributed systems.

and system of interest is:

System‐of‐interest the system whose life cycle is under consideration

ISO/IEC 15288:2008 Systems engineering – System life‐cycle processes says:

- a combination of interacting elements organized to achieve one or more
stated purposes

FWIW I happen to be in the middle of making a SKOS instantiation of the INCOSE SE Handbook terms and definitions for a NIST investigation.

Cheers,
David

On 2/7/2012 5:42 PM, Mike Bennett wrote:
Surely a system is something for which there are things which have part-hood relationships to that thing. Having parts would be what distinguishes a system (at this most general level) from a bunch of stuff.

Just a suggestion.

Mike

On 07/02/2012 17:25, joseph simpson wrote:
The first step in this process is defining a system.

If you can not define a system then you can not define a complex system or a system of systems.

So, I still wonder if we have developed distinction criteria for a system.

(A "system of systems" is by definition a system.)

Have fun,

Joe

On Tue, Feb 7, 2012 at 9:07 AM, AzamatAbdoullaev <abdoul@xxxxxxxxxxxxxx> wrote:
"We've learned that our companies, our cities and our world are complex systems-indeed, systems of systems": http://www.ibm.com/smarterplanet/us/en/overview/ideas/index.html?lnk=ussph2.12 
 
I still wonder if we have developed the distinction criteria for the complex systems and the systems of systems.
----- Original Message -----
Sent: Friday, February 03, 2012 9:56 PM
Subject: Re: [ontology-summit][BigSystemsandSystemsEngineering]Systemofsystems

Yuriy:

Because the name of this track is Big Systems and Systems Engineering this topic fits under the topic of mathematics (a very big system).

However, engineering in general is a bit different and systems engineering is even more different.

Engineering is the act of applying mathematics and scientific principles to the solution of practical problems.

So, math is a tool used by engineers to solve problems.

Then there are systems science and metasystems methodology that set the context for the application of systems engineering.

There is little or no magic involved in these well defined approaches and processes for designing, developing, deploying and operating large-scale systems.

However, as Arthur C. Clarke detailed in his three laws, "Any sufficiently advanced technology is indistinguishable from magic."

In my mind we are discussing a very advanced technology that integrates large stores of data, information and technology.

It is not magic.

Take care and have fun,

Joe

2012/2/3 Yuriy Milov <qdone@xxxxxxxxxx>
Hi Joe,
 
If a () system of () systems exists then a (very (simple)) system is still a system of (very (very (simple))) system. 
 
It's amaizing to know a very simple system which demonstrates very complex behavior. This is a fantastic gift. We do not deserv it - but we have it! :)
 
We could think that the natural numbers (1,2,3,4,5,6,7.. so on) is simple. Are we sure?
 
Let's choose a natural number  n1 (free, spontaneously, without any reasons - just any of natural numbers) and  then let's choose again any natural number n2  (free, spontaneously, without any reasons - just any of natural numbers).
 
The more freedom of choice we have - the more chances that n2>n1
 
Absolute freedom of choice makes n2>n1 guaranteed
 
The reason of this is that there is no a biggest natural number (that is also an amazing fact, by the way)
 
We (people) are finite (in space and time) pretty simple entities. How can we understand infinity?
 
The answer is - because ae are able to play with a freedom of choice - thanks for the great gift - the natural numbers :) 
 
The  logistic equations and cellular automata are magic wands whaich transform complex system of systems in a simple set 1,2,3 and so on :)
 
Yuri
 
 
----- Original Message -----
Sent: Friday, February 03, 2012 3:29 AM
Subject: Re: [ontology-summit] [BigSystemsandSystemsEngineering]Systemofsystems

The logistic equation is a math model of the behavior of a living system.

A very simple system can demonstrate very complex behavior.

In my view this is another example of general systems theory (GST) where a specific branch of science was generalized into mathematics and applied in many places.

However, this is behavior of a simple system, not a system of systems or an industrial system.

Have fun,

Joe

On Thu, Feb 2, 2012 at 1:49 PM, Yuriy Milov <qdone@xxxxxxxxxx> wrote:
Hi Jack,

I think the metod is to follow the cascade of bifurcation which has the
universal mesure (a sort of the delta number which can be got from
experiment/experience)

The magics here is our ability to distinguish the related and unrelated
events -  where the bifurcated branchs (splitted paths) belongs one tree
(one way)

Sorry if it is too vague methafora - I do some urgent job right now

Yuri

 


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