Modeling e-Negotiation Processes for a Service Oriented Architecture

Most of today's e-marketplaces support a single negotiation protocol. The protocol is usually built into the e-marketplace infrastructure, therefore if a new one is introduced then a time consuming and complex process of implementing it takes place. Moreover, participants in the e-marketplace need to adapt their interfaces to the new protocol, especially if they use automated tools to interact with the e-marketplace. This paper reports on a model-driven approach and a framework for rapid and user-friendly development of configurable service oriented e-negotiation systems. We believe that a formal specification of negotiation protocols and their separation from the market infrastructure that implements them is a step towards configurable e-negotiation systems. The protocols are graphically designed for the e-marketplace then mapped into web service orchestrations. Participants use automated negotiation systems to interact with the e-marketplace. These systems are generated based on the negotiation protocol implemented on the e-marketplace. A declarative language is used to specify negotiation strategies and tactics. We propose an algorithm to map Statechart models of negotiation protocols into web service orchestrations and we report on the current implementation of our framework.     

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).     

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.     

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.     

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.     

Trajectories for Driving the Diffusion of e-Negotiation Service Providers in Supply Chains: An Action Research Approach

ABSTRACT

The recent proliferation of online-based trade makes negotiations with service providers for global supply networks evermore challenging. The Internet is believed to be a viable means for enabling and facilitating these supply chain interactions. As such, commercial web-based services that support negotiation processes have emerged (i.e., e-negotiation services). Even though these services have promising benefits for supply chain participants, they have not been accepted by most business users. Current e-negotiation studies fail to capture the substantive reasons of this low acceptance as they typically ignore real-world aspects of commercial negotiations. As such, this study argues that an action research approach is a plausible means to study this issue, and to drive changes in the e-negotiations services market. Accordingly, a research plan is outlined with guidelines and recommendations for future action research projects.     

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.     

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.     

E-Alliance: A Negotiation Infrastructure for Virtual Alliances

In this paper we provide an overview of E-Alliance, a software infrastructure we are developing to support negotiation activities in concurrent inter-organisational alliances. Our baseline is to offer a collaboration framework which fully preserves the autonomy of organisations grouped in an alliance, while enabling concurrency of their activities, flexibility of their negotiations and dynamic evolution of their environment. We propose to support negotiation between the partners within such alliances by combining different technologies, such as software engineering techniques, middleware-level coordination facilities and multiagent systems support. We present our approach in the context of a sample scenario of an alliance where partners are printshops capable of (out/in) sourcing print jobs among them to better accomplish their customers' requests.     

Hot Versus Cool Behavioural Styles in Electronic Negotiations: The Impact of Communication Mode

In this paper, we study the effects of synchronous and asynchronous communication mode on electronic negotiations. By applying content analysis, we compare the negotiation processes of two e-negotiation simulations conducted in a synchronous and an asynchronous setting. Our results show significant differences in communication behaviour of subjects. Synchronous negotiation mode leads to less friendly, more affective, and more competitive negotiation behaviour. In the asynchronous communication mode, negotiators exchange more private and task-oriented information and are friendlier. These results suggest that negotiators in the asynchronous mode, who have more time to reflect, cool down and control emotions better while negotiators, who communicate synchronously engage more in emotional and competitive “hot” debates. In addition, negotiators in the asynchronous mode are more satisfied with the process and outcome of the negotiation. We conclude that de-individuation and escalating effects might be caused by communication mode rather than by the ability of the media to transmit social cues.     

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.     

Resolving Impasses in e-Negotiation: Does e-Mediation Work?

In this article we evaluate the performance of an e-mediation system, referred to as VienNA, in an e-negotiation environment. A set of hypotheses drawn from the mediation and e-mediation literatures are explored. Bargaining processes, outcomes, and perceptions are compared for bargainers that have access to the VienNA system with those that do not have access during negotiation. Supporting several of the hypotheses, bargainers with access to the system were more flexible during the process, showed more concession reciprocation, sent more messages dealing with relationships and related sources of conflict, and were more satisfied with both the process and outcome. Early use of the system produced more flexible bargaining and better outcomes than later use, a finding that supports research on mediation in international conflicts. More balanced agreements occurred when bargainers consulted a form of advice known as fairness norms. Implications of these results for theory and practice are discussed along with suggestions for further research.     

Embedding Decision Support in E-Sourcing Tools: Quotes, A Case Study

In the everyday business world, the sourcing process of multiple goods and services usually involves complex negotiations that include discussion of product and service features. Currently, this is a high-cost process due to the scarce use of tools that streamline negotiations and assist purchasing managers' and providers' decision-making. With the advent of Internet-based technologies, it became feasible the idea of tools enabling low-cost, assisted, fluid, on-line dialogs between buyer enterprises and their providers located anywhere. This article presents Quotes, an iSOCO's commercial application that, in addition to cover the whole sequence of sourcing tasks, incorporates decision support facilities based on Artificial Intelligence (AI) techniques that successfully address highly challenging issues in automated negotiation within a single and coherent framework.     

Arguing over Goals for Negotiation: Adopting an Assumption-Based Argumentation Decision Support System

Computational models of argumentation has been put forward as a promising approach to support decision making. In this context several recent works have proposed argumentation-based frameworks for decision making. In this paper we describe an application based on an argumentation-based mechanism for decision-making to concede. Adopting the assumption-based approach of argumentation, we propose an argumentation framework in which preferences are attached to goals. Arguments are defined as tree-like structures. Our framework is equipped with a computational counterpart for solving a decision problem, modeling the intuition that high-ranked goals are preferred to low-ranked goals which can be withdrawn. In this way, our framework suggests some decisions and provides an interactive and intelligible explanation of this choice. Our implementation, called MARGO, has been used for service selection within the ArguGRID project. We illustrate our approach with an industrial application, and illustrate the operation of the system with a running example.     

A Negotiation Model for Inducing Higher Service in a Distribution Channel

This paper analyzes, in the context of negotiation, the problem of coordination and conflict resolution between the manufacturer (Seller) and the retailers (Buyers) for a two-tier inventory system. The retailers capture demand (from customers) and therefore are responsible for the level of service offered by the system. The larger the inventory that a retailer has of a particular product, the lower the probability of running out of stock and therefore, avoid the possibility of a lost sale for the manufacturer. A conflict arises (and therefore the negotiation process starts) when the manufacturer wants the retailer to increase the level of service while retailers are satisfied with the status quo. Using the Nash bargaining solution, we develop a theoretical framework that incorporates behavioral dimensions and predicts the outcome of “sharing” the profit. The results indicate the advantage of developing long term relationships among the members of the distribution channel to minimize the uncertainty and therefore the source of conflict.     

Data-based negotiator allocation management

Negotiation abilities are difficult to assess, and negotiation outcomes are difficult to predict. This leads to possible deficiencies in resource allocation for negotiation tasks. In this article, we discuss the merits of a data-based approach for the allocation of negotiators to negotiation tasks. We provide a framework for negotiation allocation management that includes a method for assessing negotiator strength. The negotiator strength measure compares observable negotiation outcomes relative to similar outcomes in similar situations. We provide examples for using our framework and show evidence for its appeal when using industry data. We discuss implications for managers and provide key takeaways.     

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.     

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.      

User Acceptance of Web-Based Negotiation Support Systems: The Role of Perceived Intention of the Negotiating Partner to Negotiate Online

With the rapid growth of web-based services and global trade, there is some commercial potential for web-based Negotiation Support Services (WNSS). This market potential, however, is somewhat untapped. While previous studies had examined WNSS adoption by individual decision makers, this situation is not fully realistic, as the conformity of all negotiating partners is required for web-based negotiation to happen. Therefore, this study extends the technology acceptance model for the context of e-negotiation through the inclusion of perceptions regarding the intention of the negotiating partner to use WNSS (i.e., perceived intentions). An empirical investigation, based on phone interviews with potential users, supports the research model. The perceived intention of the negotiating partner to agree to use WNSS was found to have significant positive effect on individuals’ acceptance of WNSS and its antecedents. Adding this construct into WNSS acceptance theory advances our understanding of WNSS adoption and provides important insights for scholars and practitioners.