Configurable e-negotiation systems for large scale and transparent decision making

Participatory democracy is one of several conceptions of democracy which strives to create opportunities for all members of a group to contribute to the decision making process. Recent developments in information technologies in general and Internet technologies in particular are affecting the existing democratic mechanisms, hence enabling citizens and organizations to participate widely, efficiently and transparently in the decision making process and, most importantly, to arrive at better decisions faster, through negotiation. E-negotiation systems rely on such technologies to implement protocols ranging from motion raising and voting to auctions, and to make them available on the web for general use. E-negotiation systems can be used for political and societal decision making as well as business dealings within e-government and B2B settings. In order for these systems to fulfill their promise of bringing decision making opportunities to all, we need a structured approach and a configurable framework for designing, implementing and deploying them. The resulting systems should be web-based, easy to use, affordable, traceable, reliable, secure, flexible, efficient, and open for integration with other systems. This paper starts by examining leading research initiatives to devise such a framework and discussing the motivations behind them. We then introduce several design requirements derived from the expectations of e-negotiation systems providers and users. We argue that meeting these requirements fosters a more democratic and efficient decision making process. We also present our approach and vision of a configurable framework for designing, implementing and deploying e-negotiation systems.     

E-negotiation System Development: Using Negotiation Protocols to Manage Software Components

A major challenge in developing an e-negotiation system (ENS) is that the system should fit into the context which varies with negotiation cases. To mitigate context dependency, we propose to separate e-negotiation protocols from ENS and adopt a component-oriented approach. In this paper, we present a framework for e-negotiation protocols that implements this approach. The framework has been tested by developing several ENSs of which two had been tested in laboratory negotiation experiments with more than 100 participants.     

Evaluations of Tactics for Automated Negotiations

Automated negotiation under the infrastructure of e-commerce is becoming an important issue. However, although the communication protocols and frameworks of automated negotiation have been extensively investigated, the corresponding tactics and strategies are still underdeveloped and need to be evaluated further. Based on the negotiation model proposed by Faratin et al., this paper examines the performance of automated negotiation tactics and intends to provide concise suggestions for the users of automated negotiation. First, theoretical analysis is used to evaluate the behavior-dependent tactics. Constructive conclusions are obtained when single-issue negotiations are considered. Next, a new framework for applying single-issue tactics to multi-issue negotiation is proposed. Based on this framework, theoretical analysis is then extended to multi-issue cases. Finally, different from the previous work, exhaustive simulations based on two-issue negotiations are performed to evaluate the effectiveness of behavior-dependent and time-dependent tactics. The experimental results provide several important insights into negotiation tactics.     

Web Services for Negotiation and Bargaining in Electronic Markets: Design Requirements, Proof-of-Concepts, and Potential Applications to e-Procurement

Information Systems researchers continue to develop Web services hoping that, in a near future, these services will be widely offered in the e-marketplace, using a Web-based protocol that is universally adopted for posting, locating and invoking available services. Posting services does not, however, necessarily lead to market transactions, and a number of brokering activities are needed to facilitate trade. These include, but are not limited to, service discovery and ranking, price negotiation and contract preparation. We propose a set of Web services that support the process of negotiation and bargaining to facilitate the matching of supply and demand of Web services. As a market broker, these web services would help (a) discover the supply/demand of web services in e-marketplaces; (b) find the most appropriate available service for a specific request; (c) facilitate services be modified if needed to satisfy user's needs; (d) arbitrate the pricing mechanism with the recourse to bargaining whenever necessary; and (e) generate a contract. As a proof of concept, we illustrate the potential use of Web services for negotiation and bargaining in e-procurement.     

Negotiation Support and E-negotiation Systems: An Overview

With negotiation being an often difficult process involving complex problems, computer-based support has been employed in its various phases and tasks. This article provides a historical overview of software used to support negotiations, aid negotiators, and automate one or more negotiation activities. First, it presents several system classifications, including implemented models, system architectures, and configurations of various systems interacting with human negotiators. Then, it focuses on NSSs (negotiation support systems) and related systems introduced in the early 1980s and on ENSs (e-negotiation systems), which are deployed on the web. These broad categories are discussed from four perspectives: real-life applications, systems used in research and training, research results, and research frameworks.     

Beyond "Yes or No" - Extending Access Control in Groupware with Awareness and Negotiation

We present three scenarios concerning access to documents in three real world fields of application, which have in common that they are very difficult to support with classical anticipative access control systems. We show, how - based on a highly configurable notification and negotiation service, which is tightly integrated with a classical access control system - the common permission and denial options can be extended with awareness and negotiation and how this approach supports the three initial access scenarios. We also introduce our implementation of the notification and negotiation service in the PoliTeam project.     

Negotiation protocol based on ordered weighted averaging and Fuzzy metrics

ABSTRACT

Negotiation Support Systems are used to exchange offers and to improve the negotiation process. Some methods are based on perspectives like heuristics in order to bring the negotiation protocol gradually closer to reality. These approaches can be important in real negotiation as they can help to improve skillsespecially in distributive bargaining. This paper proposes a Negotiation Support framework to provide the negotiator with recommendations on making decisions in a negotiation process. To input this idea into negotiation protocols, this paper suggests that some concepts based on OWA (Ordered Weighted Averaging) and some of its metrics (Orness, Dispersion) be included in the heuristics of a structured negotiation schedule. It is expected that the support provided will aid the negotiator to make decisions during the negotiation process, to learn from the elicitation and his own behavior the results obtained can help the negotiator improving his skills in the negotiation process.     

Assessing the e-Service Quality of Sellers in an Industrial e-Marketplace

Existing studies of electronic service quality (e-SQ) mainly deal with online shopping mall operators in business-to-consumer (B2C) markets, whereas research into the e-SQ of sellers in industrial electronic marketplaces (e-marketplaces), characterized by multiple sellers and multiple customers, is lacking. Therefore, this study intends to determine if existing theories developed and tested in the B2C online shopping mall context are directly applicable to measure e-SQ of industrial e-marketplace sellers. By qualitatively analyzing customer feedback obtained in an e-marketplace, this study offers an in-depth exploration of e-SQ dimensions, discovers a tentative causal model of the e-SQ specific to industrial e-marketplace sellers, and compares the tentative model grounded in the qualitative data with existing research tested with quantitative data. This study shows that existing e-SQ scales may not apply, without revision, to measures of the e-SQ of industrial e-marketplace sellers.     

A Recursive Protocol for Negotiating Contracts Under Non-monotonic Preference Structures

Negotiating contracts with multiple interdependent issues may yield non-monotonic preference spaces for the participating agents. These negotiations are specially challenging because of the complexity and dimension of the search space. Automated negotiation mechanisms designed and proven useful for monotonic utility spaces may fail in these negotiation scenarios. This paper presents a novel solution to the problem of automated multi-issue negotiations in the context of complex utility spaces. We seek to address the challenge of intractably large contract spaces and utility functions with multiple local optima in automated negotiation scenarios. A protocol for automated bilateral multi-attribute negotiation processes is proposed, in which the individual agents??preferences can be non-monotonic and discontinuous. The protocol is based on a recursive non-mediated bargaining mechanism, which involves two agents who simultaneously exchange proposals defined as regions within the negotiation space. An agreement on a region implies a new bargaining which is restricted to that region. This recursive process is governed by a set of rules which modulate the joint exploration of the negotiation space until an agreement is found or a deadline expires. The protocol is experimentally evaluated under monotonic and non-monotonic preference scenarios, confirming that the protocol is able to produce outcomes close to the Pareto frontier in acceptable negotiation time, outperforming previous approaches.     

Multi-bilateral Multi-issue E-negotiation in E-commerce with a Tit-for-Tat Computer Agent

We discuss multi-bilateral multi-issue electronic negotiation (e-negotiation) in the context of an e-commerce marketplace system in which multiple players – buyers and sellers – conduct bilateral (pair-wise) multi-attribute negotiations followed optionally by an auction. Negotiators both make and request specific concessions. The concept of a tit-for-tat concession strategy is developed and implemented by a computer agent. The work is related to the Evolutionary Systems Design (ESD) framework for formal modeling/design of Purposeful Complex Adaptive Systems (PCAS).     

On-line/Off-line: Joint Negotiation Teaching in Montreal and Vienna

E-business systems, the most recent generation of information systems, can be effectively used in teaching. One such system was developed and used in a collaborative project that involved teaching of negotiation theory and practice to students from Austria and Canada. The system provides customized course materials and a platform to conduct various e-negotiation activities. The design allows combining e-learning technologies designed to support students in their independent and individual learning with conventional face-to-face training. Our experience indicates that professional negotiation training accompanied by e-learning, and tools to support decision-making and negotiation can foster students' appreciation of the technology as well as demonstrate its limitations. The combination of technology-intensive and conventional resources contributed to students' awareness of social influences on negotiations, importance of communication, and focussed their attention on the problem and its solution. Deeper customization of the course content and delivery may further contribute to effective learning and acquiring of both communication and analytical skills.     

A Multi-Attribute Negotiation Support System with Market Signaling for Electronic Markets

Despite the rapid growth of technology and Internet-based markets, many of the current systems limit themselves to price as the single dimension variable and offer, if at all, only minimal negotiation support to the consumer. In the real world, commercial transactions take into account many other parameters both quantitative and qualitative such as product quality, speed, reputation, after sales service, etc. This paper discusses how these multiple attributes can be captured to augment standard negotiation processes in order to support electronic market transactions. Using a combination of utility theory and multicriteria decision-making, we propose heuristic algorithms to discover potential trades. In addition, the approach is included within a larger framework that incorporates market-signaling mechanisms. This not only allows for the systematic evolution of negotiation positions among buyers and sellers but can ultimately lead towards improving both market transparency and efficiency. To illustrate the multiple criteria model coupled with the dynamic market signaling framework, we report in this paper the implementation of a Web-based clearinghouse that serves the real estate market.     

A Classification Scheme for Negotiation in Electronic Commerce

In the last few years we have witnessed a surge of business-to-consumer and business-to-business commerce operated on the Internet. However, most current electronic commerce systems are little more than electronic catalogues that allow a user to purchase a product under predetermined and inflexible terms and conditions. We believe that in the next few years we will see a new generation of electronic commerce systems emerge, based on automated negotiation. In this paper, we identify the main parameters on which any automated negotiation depends. To show the applicability of our classification framework, we use it to categorise a representative sample of some of the most prominent negotiation models that exist in the literature.     

On automated e‐business negotiations: Goal,policy, strategy,and plans of decision and action

In recent years, there has been increasing interest in automated e‐business negotiations. The automation of negotiation requires a decision model to capture the negotiation knowledge of policymakers and negotiation experts so that the decision‐making process can be carried out automatically. Current research on automated e‐business negotiations has focused on defining low‐level tactics (or negotiation rules) so that automated negotiation systems can carry out automated negotiation processes. These low‐level tactics are usually defined from a technical perspective, not from a business perspective. There is a gap between high‐level business negotiation goals and low‐level tactics. In this article, we distinguish the concepts of negotiation context, negotiation goals, negotiation strategy, and negotiation tactics and introduce a formal decision model to show the relations among these concepts. We show how high‐level negotiation goals can be formally mapped to low‐level tactics that can be used to affect the behavior of a negotiation system during the negotiation process. In business, a business organization faces different negotiation situations (or contexts) and determines different sets of goals for different negotiation contexts. In our decision model, a business policymaker sets negotiation goals from different perspectives, which are called goal dimensions. A negotiation policy is a functional mapping from a negotiation context to some quantitative measures (or goal values) for the goal dimensions to express how competitive the policymaker wants to reach that set of goals. A negotiation expert who has the experience and expertise to conduct negotiations would define the negotiation strategies needed for reaching the negotiation goals. Formally, a negotiation strategy is a functional mapping from a set of goal values to a set of decision‐action rules that implement negotiation tactics. The selected decision‐action rules can then be used to control the execution of an automated negotiation system, which conducts a negotiation on behalf of a business organization.     

Negotiators' Communication, Perception of Their Counterparts, and Performance in Dyadic E-negotiations

The aim of this study was to improve our understanding of negotiation strategies, behaviors, and outcomes, and the relationships between these factors based on data collected from questionnaires, actual behavior during the negotiation process implemented using e-negotiation system, and the negotiation outcomes. This study clustered the negotiators based on either the negotiators' own strategies or their thoughts about those of their partners. This resulted in a division into cooperative and noncooperative clusters. We found that the negotiators whose own strategies are less cooperative tend to submit more offers but fewer messages. However, these people consIDer that they have less control over the negotiation process compared with those who adopt a more cooperative strategy, who make fewer offers but send more messages. Those in the cooperative cluster consistently feel friendlier about the negotiation and more satisfied with the outcome and their performance. Further, there is a correlation not only between self-strategies and the thoughts about partners' strategies, but also between strategies and final agreements. Finally, the proportion of negotiations reaching agreement is larger for the cooperative cluster than for the noncooperative cluster.     

Exploring usage continuance of e-negotiation systems: expectation and disconfirmation approach

Online negotiation is becoming increasingly popular and important due to the rapid growth of global e-business, with the factors determining the continuance of e-negotiation systems (ENSs) usage––rather than the mere acceptance of their use––receiving more attention. This study used the expectation-disconfirmation theory to investigate the factors influencing the intention of ENS usage continuance. Using two Web-based ENSs, data were collected from 170 negotiators who participated in an e-negotiation experiment lasting 17 days. A structural-equation modeling technique was adopted to examine the research model and hypotheses. The obtained research results provide novel insights into ENS usage continuance for ENS researchers, developers, and managers. They indicate that positive disconfirmation (i.e., where the actual experience or perceived performance is better than the expectation) plays a crucial role in shaping the intentions of users to continue using an ENS. Therefore, researchers should consider postusage factors when attempting to elucidate the decision-making processes that underlie the continued use of an ENS. Similarly, the development of a successful ENS requires its developers to consider the expectations of users when designing the system specification. To ensure ENS usage continuance, IS managers should continuously monitor the users’ expectation-disconfirmation status to ensure their satisfaction with the ENS.     

Context-Sensitive Semantic Synchronization Enablement in Electronic Negotiations

When integrating electronic negotiations into real-world business processes, an important problem arising is the magnitude of e-business standards in use. In order to support electronic negotiations when negotiation partners use and need to integrate terms named and formatted according to different document standards, taxonomies or similar standards, references between those standards are needed. In this paper, we present a framework for a negotiation support meta-tool which is designed to maintain and dynamically evolve a collection of such references. To deal with semantic ambiguities in different contexts, it provides users with context-sensitive references. The framework uses technologies from ontological engineering and machine learning, its services can be integrated into existing negotiation applications via web services. Furthermore, it allows parameterzation for the actual domain of use.     

A Generic Framework for Automated Multi-attribute Negotiation

Agents in a negotiation may have to negotiate multiple issues simultaneously. Automated multi-attribute negotiation provides an important mechanism for distributed decision makers to reach agreements on multiple issues. Moreover, it also furnishes the opportunity to reach “win–win” solutions. In this paper, we first provide a survey that synthesizes the research on multi-attribute negotiation. We discuss the limitations of the existing research and conclude that three key issues need further study: incomplete information, Pareto optimality, and tractability. We then present a generic framework for automated multi-attribute negotiation with two new mechanisms that address the above issues. Finally, we discuss the challenges and directions for future work.     

On Combining Partial and Incompatible Information in E-negotiation and E-arbitration

The complexity of the problems to be addressed in an e-democracy framework and the variety of involved stakeholders, with different backgrounds, views and access to information sources, lead us to consider the case in which an e-negotiation should be performed among subjects who have partial, sometimes incompatible, information and can hardly gather to discuss issues together, under the supervision of a facilitator. We propose a statistical method which addresses the issue of partial and incompatible information, merging it and then using it to get a final decision, possibly in an automatic way, through processes of e-negotiation and e-arbitration.