[Modeling] Re: [Modeling] Agent-oriented: why is it necessary?
Ricardo Sanz
Ricardo.Sanz@etsii.upm.es
Wed, 19 Nov 2003 10:21:28 +0100
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Hi,
> That's to say, agent is an extention of object. So,
> the importance of agent is in modeling but not in
> implementation, is it?
In some sense, the answer is "Yes". An agent is an extension of an object.
But the type of extension makes a big deal. I like to think
about them as objects with own threads (active objects). That sets the
focus
not only on modeling but also on implementation.
We think about them as "living" objects.
Best,
Ricardo
Yanqi wrote:
>Hi, Ricardo and all,
>
>Jennings wrote in "An agent-based approach for building
>complex software systems" that no quantitative data is
>available to demonstrate the efficacy of agent-oriented
>techniques. He had to use a qualitative justification
>to argure why agent-oriented approaches are well suited
>to engineering complex, distributed software system.
>
>James Odell wrote "Objects and agents: how do they
>differ". In the paper, he argues that "agent-based way
> of thinking brings a useful and important perspective
>for system development."
>
>Is agent just useful in "thinking"? Existing agent-
>based applications used to model with agents but imple-
>ment with objects. A common sense of my colleague think:
>
> agent = object + mental attitudes
>
>That's to say, agent is an extention of object. So,
>the importance of agent is in modeling but not in
>implementation, is it?
>
>I believe the answer is "No". But I can not make it
>so clear to my colleagues. :(
>
>with regards,
>qi
>
>Quoting Ricardo Sanz <Ricardo.Sanz@etsii.upm.es>:
>
>
>
>>Hi All,
>>
>>It is known that discussions about necessity are
>>
>>
>always difficult :-)
>
>
>>The case for agent-based construction is stronger
>>
>>
>where there is a need of
>
>
>>strong ecapsulation of semiautonomous behavior. The
>>
>>
>best example I know
>
>
>>is a distributed control system (DCS).
>>
>>A control loop is a paradigmatical task for an agent
>>(sense-perceive-act) and
>>being part of a large structure like a DCS forces -by
>>
>>
>nature, so to say- an
>
>
>>agent-based approach.
>>
>>In fact these people were building these type of
>>
>>
>systems much before the
>
>
>>term "agent" was common in mainstream software.
>>
>>Best,
>>
>>Ricardo
>>
>>
>>yan qi wrote:
>>
>>
>>
>>>Dear all,
>>>
>>>After reading lots of papers on agent technology, I
>>>have to ask myself this question: is agent-oriented
>>>a necessary technology, or as AgentLink says, an
>>>enabling technology for next generation software?
>>>
>>>To answer this question, both academic and practical
>>>reasons should be put forward. Yes, we can say agent
>>>is autonomous and proactive. But can we show a
>>>working example that is can not be well developed
>>>by existing software development methodologies?
>>>
>>>I believe this question is hard to answer in a simple
>>>way. Do you think so?
>>>
>>>I like to listen whatever you say.
>>>
>>>Best regards,
>>>qi
>>>
>>>=====
>>>
>>>
>>>__________________________________________________
>>>Do You Yahoo!?
>>>Tired of spam? Yahoo! Mail has the best spam
>>>
>>>
>protection around
>
>
>>>http://mail.yahoo.com
>>>_______________________________________________
>>>Modeling mailing list
>>>Modeling@www.fipa.org
>>>http://fipa.org/mailman/listinfo/modeling
>>>
>>>
>>>
>>>
>>>
>>--
>>
>>
>>
>>========================< Cut Here
>>=====================
>>
>>Ricardo.Sanz@ETSII.UPM.es
>>Ricardo.Sanz@ASLab.org
>>Ricardo.Sanz@IEEE.org
>>
>>http://aslab.disam.etsii.upm.es/~sanz
>>
>>
>>
>>The AUTONOMOUS SYSTEMS LABORATORY
>>
>>Universidad Polit¨¦cnica de Madrid
>>Madrid, Spain
>>
>>http://www.aslab.org
>>========================< Cut Here
>>=====================
>>
>>
>>
>>_______________________________________________
>>Modeling mailing list
>>Modeling@www.fipa.org
>>http://fipa.org/mailman/listinfo/modeling
>>
>>
>>
>
>
>
>Department of Computer Science and Techonology,
>National University of Defense Techonology,
>Changsha, 410073 China
>+86 731 4533854
>http://yanqi.topcities.com
>_______________________________________________
>Modeling mailing list
>Modeling@www.fipa.org
>http://fipa.org/mailman/listinfo/modeling
>
>
>
--
========================< Cut Here >=====================
Ricardo.Sanz@ETSII.UPM.es
Ricardo.Sanz@ASLab.org
Ricardo.Sanz@IEEE.org
http://aslab.disam.etsii.upm.es/~sanz
The AUTONOMOUS SYSTEMS LABORATORY
Universidad Politécnica de Madrid
Madrid, Spain
http://www.aslab.org
========================< Cut Here >=====================
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<pre wrap="">Hi,
> That's to say, agent is an extention of object. So,
> the importance of agent is in modeling but not in
> implementation, is it?
</pre>
<br>
In some sense, the answer is "Yes". An agent is an extension of an
object. <br>
<br>
But the type of extension makes a big deal. I like to think<br>
about them as objects with own threads (active objects). That sets the
focus <br>
not only on modeling but also on implementation. <br>
<br>
We think about them as "living" objects.<br>
<br>
Best,<br>
<br>
Ricardo<br>
<br>
<br>
<br>
Yanqi wrote:<br>
<blockquote type="cite"
cite="mid20031115120421.013695A30D@ds20.nudt.edu.cn">
<pre wrap="">Hi, Ricardo and all,
Jennings wrote in "An agent-based approach for building
complex software systems" that no quantitative data is
available to demonstrate the efficacy of agent-oriented
techniques. He had to use a qualitative justification
to argure why agent-oriented approaches are well suited
to engineering complex, distributed software system.
James Odell wrote "Objects and agents: how do they
differ". In the paper, he argues that "agent-based way
of thinking brings a useful and important perspective
for system development."
Is agent just useful in "thinking"? Existing agent-
based applications used to model with agents but imple-
ment with objects. A common sense of my colleague think:
agent = object + mental attitudes
That's to say, agent is an extention of object. So,
the importance of agent is in modeling but not in
implementation, is it?
I believe the answer is "No". But I can not make it
so clear to my colleagues. :(
with regards,
qi
Quoting Ricardo Sanz <a class="moz-txt-link-rfc2396E" href="mailto:Ricardo.Sanz@etsii.upm.es"><Ricardo.Sanz@etsii.upm.es></a>:
</pre>
<blockquote type="cite">
<pre wrap="">Hi All,
It is known that discussions about necessity are
</pre>
</blockquote>
<pre wrap=""><!---->always difficult :-)
</pre>
<blockquote type="cite">
<pre wrap="">The case for agent-based construction is stronger
</pre>
</blockquote>
<pre wrap=""><!---->where there is a need of
</pre>
<blockquote type="cite">
<pre wrap="">strong ecapsulation of semiautonomous behavior. The
</pre>
</blockquote>
<pre wrap=""><!---->best example I know
</pre>
<blockquote type="cite">
<pre wrap="">is a distributed control system (DCS).
A control loop is a paradigmatical task for an agent
(sense-perceive-act) and
being part of a large structure like a DCS forces -by
</pre>
</blockquote>
<pre wrap=""><!---->nature, so to say- an
</pre>
<blockquote type="cite">
<pre wrap="">agent-based approach.
In fact these people were building these type of
</pre>
</blockquote>
<pre wrap=""><!---->systems much before the
</pre>
<blockquote type="cite">
<pre wrap="">term "agent" was common in mainstream software.
Best,
Ricardo
yan qi wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Dear all,
After reading lots of papers on agent technology, I
have to ask myself this question: is agent-oriented
a necessary technology, or as AgentLink says, an
enabling technology for next generation software?
To answer this question, both academic and practical
reasons should be put forward. Yes, we can say agent
is autonomous and proactive. But can we show a
working example that is can not be well developed
by existing software development methodologies?
I believe this question is hard to answer in a simple
way. Do you think so?
I like to listen whatever you say.
Best regards,
qi
=====
__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam
</pre>
</blockquote>
</blockquote>
<pre wrap=""><!---->protection around
</pre>
<blockquote type="cite">
<blockquote type="cite">
<pre wrap=""><a class="moz-txt-link-freetext" href="http://mail.yahoo.com">http://mail.yahoo.com</a>
_______________________________________________
Modeling mailing list
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</pre>
</blockquote>
<pre wrap="">--
========================< Cut Here
=====================
<a class="moz-txt-link-abbreviated" href="mailto:Ricardo.Sanz@ETSII.UPM.es">Ricardo.Sanz@ETSII.UPM.es</a>
<a class="moz-txt-link-abbreviated" href="mailto:Ricardo.Sanz@ASLab.org">Ricardo.Sanz@ASLab.org</a>
<a class="moz-txt-link-abbreviated" href="mailto:Ricardo.Sanz@IEEE.org">Ricardo.Sanz@IEEE.org</a>
<a class="moz-txt-link-freetext" href="http://aslab.disam.etsii.upm.es/~sanz">http://aslab.disam.etsii.upm.es/~sanz</a>
The AUTONOMOUS SYSTEMS LABORATORY
Universidad Polit¨¦cnica de Madrid
Madrid, Spain
<a class="moz-txt-link-freetext" href="http://www.aslab.org">http://www.aslab.org</a>
========================< Cut Here
=====================
_______________________________________________
Modeling mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Modeling@www.fipa.org">Modeling@www.fipa.org</a>
<a class="moz-txt-link-freetext" href="http://fipa.org/mailman/listinfo/modeling">http://fipa.org/mailman/listinfo/modeling</a>
</pre>
</blockquote>
<pre wrap=""><!---->
Department of Computer Science and Techonology,
National University of Defense Techonology,
Changsha, 410073 China
+86 731 4533854
<a class="moz-txt-link-freetext" href="http://yanqi.topcities.com">http://yanqi.topcities.com</a>
_______________________________________________
Modeling mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Modeling@www.fipa.org">Modeling@www.fipa.org</a>
<a class="moz-txt-link-freetext" href="http://fipa.org/mailman/listinfo/modeling">http://fipa.org/mailman/listinfo/modeling</a>
</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
========================< Cut Here >=====================
<a class="moz-txt-link-abbreviated" href="mailto:Ricardo.Sanz@ETSII.UPM.es">Ricardo.Sanz@ETSII.UPM.es</a>
<a class="moz-txt-link-abbreviated" href="mailto:Ricardo.Sanz@ASLab.org">Ricardo.Sanz@ASLab.org</a>
<a class="moz-txt-link-abbreviated" href="mailto:Ricardo.Sanz@IEEE.org">Ricardo.Sanz@IEEE.org</a>
<a class="moz-txt-link-freetext" href="http://aslab.disam.etsii.upm.es/~sanz">http://aslab.disam.etsii.upm.es/~sanz</a>
The AUTONOMOUS SYSTEMS LABORATORY
Universidad Politécnica de Madrid
Madrid, Spain
<a class="moz-txt-link-freetext" href="http://www.aslab.org">http://www.aslab.org</a>
========================< Cut Here >=====================
</pre>
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