FOUNDATION FOR INTELLIGENT PHYSICAL AGENTS

FIPA Reject Proposal Communicative Act Specification

Document title	FIPA Reject Proposal Communicative Act Specification
Document number	DC00056A	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

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.

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Contents

1 Scope. 1

2 Reject Proposal 2

3 References. 3

1 Scope

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

2 Reject Proposal

Summary	The action of rejecting a proposal to perform some action during a negotiation.
Content	A tuple consisting of an action description and a proposition which formed the original proposal being rejected, and a further proposition which denotes the reason for the rejection.
Description	Reject-proposal is a general-purpose rejection to a previously submitted proposal. The agent sending the rejection informs the receiver that it has no intention that the recipient performs the given action under the given preconditions. The additional proposition represents a reason that the proposal was rejected. Since it is in general hard to relate cause to effect, the formal model below only notes that the reason proposition was believed true by the sender at the time of the rejection. Syntactically the reason on the left-hand side should be treated as a causal explanation for the rejection, even though this is not established by the formal semantics.
Formal Model	<i, reject-proposal(j, <j, act>, f, y)>º <i, inform(j, ØIi Done(<j, act>, f) Ù y)> FP : B_i a Ù ØB_i (Bif_j a Ú Uif_j a) RE : B_j a Where: a = ØIi Done(<j, act>, f) Ù y Agent i informs j that, because of proposition y, i does not have the intention for j to perform action act with precondition f.
Example	Agent i informs j that it rejects an offer from j to sell. (reject-proposal :sender i :receiver j :content ((action j (sell plum 50)) (price-too-high 50)) :in-reply-to proposal13)

3 References

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

[FIPA00044] FIPA Disconfirm Communicative Act Specification. Foundation for Intelligent Physical Agents, 2000. http://www.fipa.org/specs/fipa00044/