Security: The Virtual Quest

ABSTRACT

Security and related contingency recovery plans ensure a business' survival when it is faced with potential information systems breakdowns. Its primary objective is to prevent a calamity from occurring and to limit the impact of destructive events related to computer-based information systems. Most disaster recovery plans, when put into effect, fail to serve the intended purpose. The value of a properly implemented security is to prevent external intrusions before they start, and have an internal recovery plan to restore service so that assets are not adversely affected.

This paper provides some insight regarding security as well as identifying some of the pitfalls or weakness in this part of an organization's communication network. Emerging technologies such as the use of biometrics, authentications, steganography, and data encryption used for security will be the focus of the paper.     

Public managers’ perception of performance information: the evidence from Polish local governments

ABSTRACT

Performance management requires wise utilization of performance information to generate expected results. The framework of Performance Information Utilization (PIU) explains why and how performance information is used in the public sector, although it does so without recognizing the role of the information user’s perception. This article adapts the information system theories to conceptualize perception of performance information (PPI). Statistical analysis confirmed the validity of the construct and showed a significant relationship between quality and usefulness of performance information, and usefulness of multiple performance information systems. Tested model offers new insights in explaining the use of performance information in local governments.     

The performance of performance appraisal systems: understanding the linkage between appraisal structure and appraisal discrimination complaints

Abstract

Employee perceptions of the fairness of performance evaluations are critical to the success of any appraisal system. Research on performance management includes extensive studies on how bias emerges in the appraisal process. Despite this, there is no empirical evidence linking formal discrimination complaint filings – a key measure of bias - and performance appraisals. To close this gap, we conduct an empirical analysis using information on appraisal systems and discrimination complaints from the US federal government. Our findings suggest that agencies with better-designed appraisal systems will experience higher appraisal-related discrimination complaints, contrary to expectations. In particular, an expansion of training and voice opportunities are associated with an increase in appraisal discrimination complaints, while increased differentiation between performers is not consistently associated with complaints. For managers struggling with performance management, it may be better to spend time on improving performance-focused interpersonal communication rather than redesigning appraisal systems.     

现场总线技术在汽车生产物流管理中的应用

简要介绍了现场总线技术在汽车生产物流系统中的应用情况，同时分析了INTERBUS和CANBUS的特性。在此基础上阐述了INTERBUS在汽车生产物流系统中的应用，并通过OPC服务器实现远程总线控制器与上位机通讯，利用工业组态软件组态王构建友好的人机界面。     

Automobile insurance ratemaking in the presence of asymmetrical information

Automobile insurance is an example of a market where multi-period contracts are observed. This form of contract can be justified by asymmetrical information between the insurer and the insured. Insurers use risk classification together with bonus-malus systems. In this paper we show that the actual methodology for the integration of these two approaches can lead to inconsistencies. We develop a statistical model that adequately integrates risk classification and experience rating. For this purpose we present Poisson and negative binomial models with regression component in order to use all available information in the estimation of accident distribution. A bonus-malus system which integrates a priori and a posteriori information on an individual basis is proposed, and insurance premium tables are derived as a function of time, past accidents and the significant variables in the regression. Statistical results were obtained from a sample of 19,013 drivers.     

A semi-automated system for interoperability assessment: an ontology-based approach

ABSTRACT

A plethora of approaches to assess the ability of companies to interoperate can be found in the literature. Nevertheless, most of the current assessment approaches are following manual-conducted processes, which can be laborious, time-consuming and costly. Therefore, this paper aims at developing a knowledge-based system for supporting an interoperability assessment process using an ontology as its knowledge model. The resulting system allows identifying potential interoperability problems and related solutions based on the knowledge model including information of the assessed enterprise(s). A real business case is presented for evaluating the proposed approach.     

Uncertainty,the Lemon Problem,Asymmetric Information and Countertrade

Abstract

A review of the International Trade literature suggests that uncertainty caused by the lack of perfect information and/or asymmetric information provides a motivation for countertrade (Hennart, 1990; Mirus & Yeung, 1986; Yavas & Vardiabasis, 1988). After presenting the most prevalent forms and examples of countertrade, this study shows how uncertainty can lead to some of the most common forms of countertrade; counterpurchase, buyback and offset. The paper compares and contrasts two strategies facing the management team of a profit-maximizing firm. The standard neoclassical mathematical model developed and presented shows that countertrade strategy may be superior to standard money-mediated trade strategy when there is uncertainty. Therefore, countertrade (particularly, buyback, counterpurchase and offset) may be a rational response to conditions that restrict standard trade. As such, countertrade can supplement standard money-mediated trade and contribute to the growth of international business.     

A strategic analysis of network reliability

Abstract. We consider a non-cooperative model of information networks where communication is costly and not fully reliable. We examine the nature of Nash networks and efficient networks. We find that if the society is large, and link formation costs are moderate, Nash networks as well as efficient networks will be ‘super-connected’ i.e. every link is redundant in the sense that the network remains connected even after the link is deleted. This contrasts with the properties of a deterministic model of information decay, where Nash networks typically involve unique paths between agents. We also find that if costs are very low or very high, or if links are highly reliable then there is virtually no conflict between efficiency and stability. However, for intermediate values of costs and link reliability, Nash networks may be underconnected relative to the social optimum.     

The Spatial Durbin Model and the Common Factor Tests

Abstract

The spatial Durbin model occupies an interesting position in the field of spatial econometrics. It is the reduced form of a model with cross-sectional dependence in the errors and it may be used as the nesting equation in a more general approach of model selection. Specifically, in this equation we obtain the common factor tests (of which the likelihood ratio is the best known) whose objective is to discriminate between substantive and residual dependence in an apparently misspecified equation. Our paper tries to delve deeper into the role of the spatial Durbin model in the problem of specifying a spatial econometric model. We include a Monte Carlo study related to the performance of the common factor tests presented in the paper in small sample sizes.     

A context-based service matching approach towards functional reliability for industrial systems

ABSTRACT

As service-oriented computing is commonly used in industrial systems to deal with the continually changing business environment, matching processes with existing services becomes one of the most important phases in constructing, integrating and optimizing information systems. The precision of semantic service matching becomes a critical factor in ensuring the correctness of functionalities in system processes. However, the dependability of semantic service matching cannot be warranted in complex contexts. To improve semantic service matching for industrial systems, a context-based semantic service matching approach named ‘Process-Based service MatchMaker’(PBMM) is proposed in this paper. It selects the suitable services for the process from candidate services through taking the dependencies of related services process into consideration.     

Innovation attributes and pedagogical quality: a concretization of joint theories on course management systems acceptance

The utilization of information and communication technologies in support of teaching and learning is still on its way to expand its potentials in higher education. Facing different venues of course delivery, computer-mediated communication technologies seem to be the most efficient and cost-effective. Since the mid-1990s, course management systems (CMSs) have gradually evolved, and taken an irreplaceable important role in higher education. From the perspectives of pedagogical impact and instructional resource consumption, Morgan (2003) considered that CMSs form the academic system equivalent of enterprise resource planning systems. Based on an extensive review on the Technology Acceptance Model (TAM) and Innovation Diffusion Theory (IDT) at the outset, this study bridges the TAM and IDT, and proposes a conceptual model of the acceptance of CMSs to acknowledge antecedents (i.e., innovation attributes, self-efficacy (SE), pedagogical quality (PQ) and perceived evaluation of function (EF)). Theoretically, the perceived innovation attributes of CMSs impact users’ perceived usefulness (PU) and actual use (AU). The antecedents, such as SE, PQ, and EFs, are also anticipated to have impacts on the AU and use of perception. PU is influenced by perceived ease of use (PEOU), while behavioral intention (BI) is concurrently influenced by PEOU and PU. Moreover, AU is influenced by BI. Finally, discussion and suggestions for future research of the proposed model are also provided.     

A Motivation-Experience-Performance Model to Understand Global Consumer Behavior on the Internet

Abstract

This study determines that the consumer motivations to the Internet uses are almost universal across cultures, and consumers' needs in Internet uses are a set of hierarchical needs beginning with the most importance: e-mail, information search, chatting, professional works, and e-commerce. The three basic elements in Internet consumer behavioral process are motivations, experience, and performance. Therefore, the ways to motivate consumers are the same for different cultures—to facilitate consumer experience through communication and community, and to increase consumer performance through web transaction experiences. By developing such a framework, this research suggests an aggregate process model of consumer behavior on the Internet and discusses its potential usages and limitations.     

Labour inclusion of people with disabilities in Spain: the effect of policies and human resource management systems

Abstract

This research answered the question of which elements, linked to HR management, facilitate the labour inclusion of people with disabilities. We analysed the existence of policies in different organizations, and the interaction between these policies and the adaptation of the human resource management systems in order to archive effective labour inclusion. Spanish Human Resource managers answered a questionnaire theoretically based on the Human System Audit model. Results showed that the existence of a strategic plan for the normalization of disability in the work environment effectively leads to high levels of inclusion. This is especially relevant for those organizations that have not adapted the systems of training, professional development and internal communication to people with disabilities. The added value and newness of this research lies in bringing empirical evidence on the role of a strategic plan to normalize disability in the work environment, a policy with an internal- and external-focus, as a diversity strategy roadmap in the framework of an inclusive culture.     

Advanced manufacturing systems: supply–demand matching of manufacturing resource based on complex networks and Internet of Things

ABSTRACT

After investigation on the existing advanced manufacturing systems (AMSs), it is found that supply–demand matching of manufacturing resource is one of the common issues to be addressed in all AMSs, and methods for addressing this issue have evolved from P2P (peer-to-peer)-based, to information centre-based, and to platform (or system)-based matching, and are moving towards socialisation and service-based solutions. In order to adapt to this trend, a new method for manufacturing resource supply–demand matching based on complex networks and Internet of Things (IoT) is proposed, and a four-layered architecture for implementing this method is designed. In this method, IoT technology is employed to realise the intelligent perception and accessing of various manufacturing resources and capabilities (MR&C), which enables logical aggregation of various distributed MR&C in the form of services. Then complex networks model and theory are used to realise the efficient manufacturing service management, optimal-allocation, and supply–demand matching. In this article, the specific key technologies for implementing the method are presented, including key technologies for manufacturing service generation and aggregation, manufacturing demand/task management, supply–demand matching of MR&C in the form of services, and value/utility adding based on manufacturing service network (MSN), manufacturing task network (MTN) and manufacturing enterprises collaborative network (ECN).     

Testing the Efficacy of Replacing the Incurred Credit Loss Model with the Expected Credit Loss Model

Abstract

We use a controlled laboratory environment to provide evidence on the potential efficacy of the replacement of the Incurred Credit Loss (ICL) Model of International Accounting Standard (IAS 39) by the Expected Credit Loss (ECL) model of IFRS 9 to account for credit impairment losses. We focus on the simplified version of the ECL model using an uncertain production environment as the context. We induce incentives consistent with the existing rigid rule-based ICL model and the proposed forward-looking principle-based ECL model. Our primary finding is that the combined effects of eliminating the minimum ‘probable’ threshold condition together with allowing managers to incorporate forward-looking information increase both the amount and adequacy of periodic reserve decisions. In addition, we analyze the effects of increased flexibility under the new credit-loss model on earnings management using three different compensation schemes. We find that while the replacement of the ICL model with the ECL model facilitates higher reserves, the resulting increased earnings management varies across compensation schemes, is less than predicted, and does not offset the potential of the ECL model’s positive effects. The results provide ex ante evidence on the likely intended and unintended consequences of implementing the ECL model.     

Interim Realities

Abstract

This paper presents findings from a study of information technology implementation practices in National Health Service hospitals in England. The results suggest that there is a general direction of travel, which involves the progressive linking together of individual systems, so that they are interoperable. We argue that the findings are consistent with meta-governance arguments, but that it is necessary to complement this perspective with an understanding of the nature of information technologies in order to understand them properly. We suggest that ‘interim systems’ will be the reality on the ground for many health care organizations for the foreseeable future.     

Network formation models with costs for establishing links

Abstract. In this paper we study endogenous formation of communication networks in situations where the economic possibilities of groups of players can be described by a cooperative game. We concentrate on the influence that the existence of costs for establishing communication links has on the communication networks that are formed. The starting points in this paper are two game-theoretic models of the formation of communication links that were studied in the literature fairly recently, the extensive-form model by Aumann and Myerson (1988) and the strategic-form model that was studied by Dutta et al. (1998). We follow their analyses as closely as possible and use an extension of the Myerson value to determine the payoffs to the players in communication situations when forming links is not costless. We find that it is possible that as the costs of establishing links increase, more links are formed.     

Enforcement of Optimal Disclosure Rules in the Presence of Moral Hazard

Abstract

This paper analyzes the role of disclosure enforcement mechanisms (such as SEC enforcement teams and corporate governance systems) in directing the disclosure practices of managers when the information is used by shareholders to monitor the manager. The paper establishes a role for a disclosure enforcement system by showing that in its absence it is impossible to simultaneously induce a manager to adopt the desirable disclosure strategy and use the disclosure efficiently to monitor him. The paper shows how the effectiveness of the disclosure enforcement system and the cost of disclosure influence (i) the economic viability of the disclosure enforcement system, (ii) the disclosure policy of the manager, and (iii) the value of including stock options in the manager's compensation package.     

Institutions and human resource practices in European countries

Abstract

Stemming from differences between approaches to new institutionalism, this paper analyses the impact of institutions on the adoption of human resource practices (HRP) in organizations. With this aim in mind, two opposing hypotheses are presented: should configurations of national institutions be related to the actual implementation of HRP by organizations or not? This empirical analysis uses a sample of 29,959 employees who work in organizations established in 27 European countries and takes into account the employees’ perception about the HRP used in their organizations and which affect them. The results support the approach to new institutionalism that emphasizes legitimacy and isomorphism, since these results show empirical regularities when countries are compared. Specifically, a country’s configurations of regulative, normative and cognitive institutions are related to the actual implementation of HRP, such as internal promotion, job participation, job design, work-life balance, job training, assessment and teamwork. These results suggest relevant practical implications for human resource managers and policy-makers.     

A service governance mechanism based on process mining for cloud-based applications

ABSTRACT

With the widely use of cloud computing in enterprise information systems, service governance becomes critical for an enterprise to adapt to a changing business environment. In order to provide a dynamic strategy for continuous service governance, in this paper a comprehensive service analysis solution is proposed to address both design time and run-time requirements for cloud applications. First, a process-centric Semantic Scene Model is composed to combines static business requirements with dynamic execution information. Then service analysis is conducted referring both to the business process mining results from event logs and the Semantic Scene Model given by business model designers. Service governance strategies are generated from the service analysis results and are performed to qualitatively classify the Quality of Service (QoS) of the services. Finally the approach is verified with a transportation logistics service application in a cloud platform. The result shows that our method can get continuous service governance through combining business processes with run-time service analysis.