FOUNDATION FOR INTELLIGENT PHYSICAL AGENTS

 

 

FIPA Failure Communicative Act Specification

 

Document title

FIPA Failure Communicative Act Specification

Document number

DC00045A

Document source

FIPA TC C

Document status

Deprecated

Date of this status

2000/10/16

Supersedes

None

Contact

fab@fipa.org

Change history

2000/10/16

Deprecated by FIPA00037

 

 

 

 

 

 

 

 

 

 

 

2000 Foundation for Intelligent Physical Agents - http://www.fipa.org/

Geneva, Switzerland

Notice

Use of the technologies described in this specification may infringe patents, copyrights or other intellectual property rights of FIPA Members and non-members. Nothing in this specification should be construed as granting permission to use any of the technologies described. Anyone planning to make use of technology covered by the intellectual property rights of others should first obtain permission from the holder(s) of the rights. FIPA strongly encourages anyone implementing any part of this specification to determine first whether part(s) sought to be implemented are covered by the intellectual property of others, and, if so, to obtain appropriate licenses or other permission from the holder(s) of such intellectual property prior to implementation. This specification is subject to change without notice. Neither FIPA nor any of its Members accept any responsibility whatsoever for damages or liability, direct or consequential, which may result from the use of this specification.

Foreword

The Foundation for Intelligent Physical Agents (FIPA) is an international organization that is dedicated to promoting the industry of intelligent agents by openly developing specifications supporting interoperability among agents and agent-based applications. This occurs through open collaboration among its member organizations, which are companies and universities that are active in the field of agents. FIPA makes the results of its activities available to all interested parties and intends to contribute its results to the appropriate formal standards bodies.

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The FIPA specifications are developed through direct involvement of the FIPA membership. The status of a specification can be either Preliminary, Experimental, Standard, Deprecated or Obsolete. More detail about the process of specification may be found in the FIPA Procedures for Technical Work. A complete overview of the FIPA specifications and their current status may be found in the FIPA List of Specifications. A list of terms and abbreviations used in the FIPA specifications may be found in the FIPA Glossary.

FIPA is a non-profit association registered in Geneva, Switzerland. As of January 2000, the 56 members of FIPA represented 17 countries worldwide. Further information about FIPA as an organization, membership information, FIPA specifications and upcoming meetings may be found at http://www.fipa.org/.

Contents

1 Scope. 1

2 Failure. 2

3 References. 3


1         Scope

This document specifies the Failure communicative act which is compliant to [FIPA00037] requirements.

 

 


2         Failure

Summary

The action of telling another agent that an action was attempted but the attempt failed.

Content

A tuple, consisting of an action expression and a proposition giving the reason for the failure.

Description

The failure act is an abbreviation for informing that an act was considered feasible by the sender, but was not completed for some given reason.

 

The agent receiving a failure act is entitled to believe that:

 

         the action has not been done, and,

 

         the action is (or, at the time the agent attempted to perform the action, was) feasible

 

The (causal) reason for the refusal is represented by the proposition, which is the third term of the tuple. It may be the constant true. Often it is the case that there is little either agent can do to further the attempt to perform the action.

Formal Model

<i, failure(j, a, f)>
<i, inform(j, (
$e) Single(e) Done(e, Feasible(a) Ii Done(a)) f
Done(a) Ii Done(a))>

FP: Bi a Bi (Bifj a Uifj a)
RE: B
j a

 

Where:

 

a = ($e) Single(e) Done(e, Feasible(a) Ii Done(a))
f Done(a) Ii Done(a)

 

Agent i informs agent j that, in the past, i had the intention to do action a and a was feasible. i performed the action of attempting to do a, that is, the action/event e is the attempt to do a, but now a has not been done and i no longer has the intention to do a, and f is true.

 

The informal implication is that f is the reason that the action failed, though this causality is not expressed formally in the semantic model.

Example

Agent j informs i that it has failed to open a file.

 

(failure

:sender j

:receiver i

:content
((action j "open( \"foo.txt\ )")
(error-message "No such file: foo.txt"))
:language FIPA-SL)


3         References

[FIPA00037] FIPA Communicative Act Library Specification. Foundation for Intelligent Physical Agents, 2000. http://www.fipa.org/specs/fipa00037/