(m,k)-Gur game: Exploiting message discards in order to increase the lifetime and spatial diversity in autonomic wireless sensor networks

The main concern in Wireless Sensor Networks (WSN) algorithms and protocols are the energy consumption. Thus, the WSN lifetime is one of the most important metric used to measure the performance of the WSN approaches. Another important metric is the WSN spatial coverage, where the main goal is to obtain sensed data in a uniform way. This paper has proposed an approach called (m,k)-Gur Game that aims a trade-off between quality of service and the increasement of spatial coverage diversity. Simulation results have shown the effectiveness of this approach. © 2012 IEEE.

Éxitos y desafíos en política de transporte público : análisis comparativo de las innovaciones en la prestación del servicio de transporte público de pasajeros en las ciudades de Curitiba, Brasil; Santiago de Chile, Chile y Rosario, Argentina

En esta artículo realizamos un análisis comparativo de los sistemas de servicio de transporte público de pasajeros en las ciudades de Curitiba, Brasil; Santiago de Chile, Chile y Rosario, Argentina para poder comparar las similitudes, diferencias y dificultades que presentan estos sistemas en la etapa de implementación de las políticas públicas; como así también presentar una sistematización de las políticas, instrumentos y acciones que permitieron gestionar con éxito las reestructuraciones de los sistemas de transporte y sus aportes para el desarrollo de una Política pública de transporte en el Gran Mendoza.

Public and private psychiatry: Can they work together and is it worth the effort?

Objective: Partnerships in mental health care, particularly between public and private psychiatric services, are being increasingly recognized as important for optimizing patient management and the efficient organization of services. However, public sector mental health services and private psychiatrists do not always work well together and there seem to be a number of barriers to effective collaboration. This study set out to investigate the extent of collaborative 'shared care' arrangements between a public mental health service and private psychiatrists practising nearby. It also examined possible barriers to collaboration and some possible solutions to the identified problems. Method: A questionnaire examining the above factors was sent to all public sector mental health clinicians and all private psychiatrists in the area. Results: One hundred and five of the 154 (68.2%) public sector clinicians and 103 of the 194 (53.1%) private psychiatrists returned surveys. The main barriers to successful collaboration identified by members of both sectors were: 'Difficulty communicating' endorsed by 71.4% of public clinicians and 72% of private psychiatrists, 'Confusion of roles and responsibilities' endorsed by 62.9% and 66%, respectively, and 'Different treatment approach' by 47.6% and 45.6%, respectively. Over 60% of private psychiatrists identified problems with access to the public system as a barrier to successful shared care arrangements. It also emerged, as hypothesized, that the public and private systems tend to manage different patient populations and that public clinicians in particular are not fully aware of the private psychiatrists' range of expertise. This would result in fewer referrals for shared care across the sectors. Conclusions: A number of barriers to public sector clinicians and private psychiatrists collaborating in shared care arrangements were identified. The two groups surveyed identified similar barriers. Some of these can potentially be addressed by changes to service systems. Others require cultural shifts in both sectors. Improved communications including more opportunities for formal and informal meetings between people working in the two sectors would be likely to improve the understanding of the complementary sector's perspective and practice. Further changes would be expected to require careful work between the sectors on training, employment and practice protocols and initiatives, to allow better use of the existing services and resources.

Servitization of manufacturing

The servicisation agenda is arguably one of the most important facing western manufacturers. In a world of severe international competition, it can be the basis of distinct competitive advantage, and a means to differentiate a company's products from goods produced in low cost economies. The concept of Product Service Systems (PSS) is, in particular, a special case of servicisation. With PSS, the market proposition is designed as a system that exploits synergies between products and services while, at the same time, seeks to reduce the economic and environmental costs of delivery. Although key to sustaining western manufacturing operations, major issues arise with design and management of engineering, manufacturing and supply chain activities for successful implementation of such a service-led competitive strategy. This session includes presentations which examine the opportunities and challenges associated with servicisation in more detail.

The practical challenges of servitized manufacture

Servitization is now widely recognised as the process of creating value by adding services to products. Since this term was first coined in the late 1980s it has been studied by a range of authors who have specifically sought to understand the methods and mechanisms of service-led competitive strategies for manufacturers. This paper reports on the experiences of a large company as they have moved towards servitized manufacture. This has been based on an extensive series of interviews with key personnel. The results of the study and implications for research are all reported.

The servitization of manufacturing:a systematic literature review of interdependent trends

Purpose: The servitization of manufacturing is a diverse and complex field of research interest. The purpose of this paper is to provide an integrative and organising lens for viewing the various contributions to knowledge production from those research communities addressing servitization. To achieve this, the paper aims to set out to address two principal questions, namely where are the knowledge stocks and flows amongst the research communities? And what are generic research concerns being addressed by these communities? Design/methodology/approach: Using an evidenced-based approach, the authors have performed a systematic review of the research literature associated with the servitization of manufacturing. This investigation incorporates a descriptive and thematic analysis of 148 academic and scholarly papers from 103 different lead authors in 68 international peer-reviewed journals. Findings: The work proposes support for the existence of distinct researcher communities, namely services marketing, service management, operations management, product-service systems and service science management and engineering, which are contributing to knowledge production in the servitization of manufacturing. Knowledge stocks within all communities associated with research in the servitization of manufacturing have dramatically increased since the mid-1990s. The trends clearly reveal that the operations community is in receipt of the majority of citations relating to the servitization of manufacturing. In terms of knowledge flows, it is apparent that the more mature communities are drawing on more locally produced knowledge stocks, whereas the emergent communities are drawing on a knowledge base more evenly distributed across all the communities. The results are indicative of varying degrees of interdependency amongst the communities. The generic research concerns being addressed within the communities are associated with the concepts of product-service differentiation, competitive strategy, customer value, customer relationships and product-service configuration. Originality/value: This research has further developed and articulated the identities of distinct researcher communities actively contributing to knowledge production in the servitization of manufacturing, and to what extent they are pursuing common research agendas. This study provides an improved descriptive and thematic awareness of the resulting body of knowledge, allowing the field of servitization to progress in a more informed and multidisciplinary fashion. © Emerald Group Publishing Limited.

Leadership in high-value services for manufacturers:advanced services and their impact on vertical integration

The debate about services-led competitive strategies continues to grow with much interest emerging around the differing practices between production and servitised operations. This paper contributes to this discussion byinvestigating the vertical integration practice (in particular the micro-vertical integration otherwise known as the supply chain position)of manufacturers who are successful in their adoption of servitization.Although these are preliminary findings from a longer-term research programme, through this technical note we seek to simultaneously contribute to the debate in the research community and offer guidance to practitioners exploring the consequences of servitization. Keyword: Servitization, Product-Service Systems, Through-life Services.

Managing enterprise resource planning and multi-organisational enterprise governance:a new contingency framework for the enterprisation of operations

This research has been undertaken to determine how successful multi-organisational enterprise strategy is reliant on the correct type of Enterprise Resource Planning (ERP) information systems being used. However there appears to be a dearth of research as regards strategic alignment between ERP systems development and multi-organisational enterprise governance as guidelines and frameworks to assist practitioners in making decision for multi-organisational collaboration supported by different types of ERP systems are still missing from theoretical and empirical perspectives. This calls for this research which investigates ERP systems development and emerging practices in the management of multi-organisational enterprises (i.e. parts of companies working with parts of other companies to deliver complex product-service systems) and identify how different ERP systems fit into different multi-organisational enterprise structures, in order to achieve sustainable competitive success. An empirical inductive study was conducted using the Grounded Theory-based methodological approach based on successful manufacturing and service companies in the UK and China. This involved an initial pre-study literature review, data collection via 48 semi-structured interviews with 8 companies delivering complex products and services across organisational boundaries whilst adopting ERP systems to support their collaborative business strategies – 4 cases cover printing, semiconductor manufacturing, and parcel distribution industries in the UK and 4 cases cover crane manufacturing, concrete production, and banking industries in China in order to form a set of 29 tentative propositions that have been validated via a questionnaire receiving 116 responses from 16 companies. The research has resulted in the consolidation of the validated propositions into a novel concept referred to as the ‘Dynamic Enterprise Reference Grid for ERP’ (DERG-ERP) which draws from multiple theoretical perspectives. The core of the DERG-ERP concept is a contingency management framework which indicates that different multi-organisational enterprise paradigms and the supporting ERP information systems are not the result of different strategies, but are best considered part of a strategic continuum with the same overall business purpose of multi-organisational cooperation. At different times and circumstances in a partnership lifecycle firms may prefer particular multi-organisational enterprise structures and the use of different types of ERP systems to satisfy business requirements. Thus the DERG-ERP concept helps decision makers in selecting, managing and co-developing the most appropriate multi-organistional enterprise strategy and its corresponding ERP systems by drawing on core competence, expected competitiveness, and information systems strategic capabilities as the main contingency factors. Specifically, this research suggests that traditional ERP(I) systems are associated with Vertically Integrated Enterprise (VIE); whilst ERPIIsystems can be correlated to Extended Enterprise (EE) requirements and ERPIII systems can best support the operations of Virtual Enterprise (VE). The contribution of this thesis is threefold. Firstly, this work contributes to a gap in the extant literature about the best fit between ERP system types and multi-organisational enterprise structure types; and proposes a new contingency framework – the DERG-ERP, which can be used to explain how and why enterprise managers need to change and adapt their ERP information systems in response to changing business and operational requirements. Secondly, with respect to a priori theoretical models, the new DERG-ERP has furthered multi-organisational enterprise management thinking by incorporating information system strategy, rather than purely focusing on strategy, structural, and operational aspects of enterprise design and management. Simultaneously, the DERG-ERP makes theoretical contributions to the current IS Strategy Formulation Model which does not explicitly address multi-organisational enterprise governance. Thirdly, this research clarifies and emphasises the new concept and ideas of future ERP systems (referred to as ERPIII) that are inadequately covered in the extant literature. The novel DERG-ERP concept and its elements have also been applied to 8 empirical cases to serve as a practical guide for ERP vendors, information systems management, and operations managers hoping to grow and sustain their competitive advantage with respect to effective enterprise strategy, enterprise structures, and ERP systems use; referred to in this thesis as the “enterprisation of operations”.

Developing a serious game for PSS

Purpose: This paper presents the system architecture of a serious game, which is going to be run in parallel to Rolls Royce tra ining on product-service systems (PSS). Design/methodology/approach: The original game is outlined, requirements for an onl ine version are defined, and the architecture is proposed. Findings: The games approach has proven its value in design for service tra ining but an online version is needed to improve the opportunit ies to deliver the game. Originality/value: Such a system presents opportunities for the acquisition and development of specific professional knowledge, skills, and competencies

A lean elvek alkalmazása az egészségügyi folyamatok fejlesztésében = Applying lean principles in healthcare process development

A fejlett társadalmak egészségügyi szolgáltató rendszerei napjainkban kettős kihívással néznek szembe: miközben a társadalom a szolgáltatási színvonal emelkedését, a hibák számának a csökkenését várja el, addig a költségvetési terhek miatt a költségcsökkentés is feltétlenül szükséges. Ez a kihívás nagyságában összevethető azzal, amellyel az USA autóipara nézett szembe az 1970-es évektől. A megoldást az autóipar esetében a konkurens „lean” menedzsment elvek és eszközök megértése és alkalmazása jelentette. A tanulmány arra keresi a választ, hogy vajon lehetséges-e ennek a megoldásnak az alkalmazása az egészségügy esetében is. A cikk az egészségügy problémájának bemutatása után tárgyalja a lean menedzsment kialakulását és hogy milyen módon került köztudatba. A tanulmány második felében a szakirodalomban fellelhető, a témával kapcsolatos tapasztalatokat foglalja össze, majd levonja a következtetéseket. = In developed societies healthcare service systems are facing double challenge; society expects service level to rise and the number of mistakes to drop, but at the same time, because of the overloaded budgets, cutting cost is also absolutely necessary. This challenge compares to the one the US automotive industry was facing in the 1970-s. In case of the automotive industry the solution was the comprehension and application of the principles and the tools of lean management. This study aims to answer the question whether it is possible to apply this solution also in the case of the healthcare system. The article first introduces the problems in the healthcare system, than describes the formation of lean management concept and its wide spread. The second half of the study summarizes the available knowledge in the literature and drives conclusions.

Stratégiai paradigmaváltás szervezeti verseny(képesség) és az Operations management központi szerepe (Central role of strategic paradigm change, corporate competitiveness and operations management)

Az elmúlt két évtized folyamán a menedzserek megtanultak a megújult szabályok szerint játszani. Tudatosították, hogy a vállalatuk eredményes navigálásához folyamatosan figyelniük és adaptálniuk kell a legújabb módszereket, elméleteket. Jelen tanulmányával a szerző ezt a folyamatot kívánja segíteni, valamint arra az alapvető kérdésre keresi a választ, hogy érdemes-e a rendkívül gyorsan változó világban hosszabb távú célok meghatározásával foglalkozni, és ha igen, akkor mire összpontosítsák a vállalatok erőfeszítéseiket. Milyen részletezettséggel, milyen módon határozzák meg az elképzeléseiket úgy, hogy közben megőrizzék a vállalat flexibilitását, a változások idején nélkülözhetetlen agilitást. A szerző arra vállalkozik, hogy feltárja a stratégiai paradigmaváltás fejlődését, a termelési stratégia, az operations management központi meghatározó szereppé válását, valamint áttekintse a termelési és szolgáltatási rendszervezetés (OM) elveinek, eszközeinek, módszereinek fejlődését, kölcsönhatását, összefüggéseit. _______ Change of paradigm has taken place in strategic planning. Fight for position turned into a fight of movement. Companies strive to achieve individual, not copyable organizational performance, as well as to realize their business strategies by means of value generating, proactive approach. Operative management now placed in the focus of production strategy is becoming the compass, the driving force of leadership. The management of production and service systems has grown into independent scientific disciplines. It yielded such principles, tools and methods which are present as world-renowned blueprints (scientific tools) in the field of maintaining and developing corporate performance. In the present study the author specifies and discusses the tools of operative management as criteria of value generation aiming at quality and cost efficiency. He analyses the backto- back character, interrelationship of quality, TQM (Total Quality Management), TPS (Toyota Production System) and JIT (Just in Time). He examines the effects thereof on corporate performance where significant and strong relationship can be demonstrated in case there is an ability to plan and develop new products. The current new OM (Operations Management) techniques increasingly rely upon the quality of human resources, the permanent improvement of procedures as well as focusing on tight cooperation with suppliers/customers. Supply chain management, core competence management, service management now represent a “new generation” of the OM methods, processes, serving at the same time as basis and starting point for expectable future techniques as well.

Methods of modelling people using discrete-event simulation

Discrete-event simulation (DES) is a developed technology used to model manufacturing and service systems. However, although the importance of modelling people in a DES has been recognised, there is little guidance on how this can be achieved in practice. The results from a literature review were used in order to identify examples of the use of DES to model people. Each article was examined in order to determine the method used to model people within the simulation study. It was found that there are no common methods but a diverse range of approaches used to model human behaviour in DES. This paper provides an outline of the approaches used to model people in terms of their decision making, availability for work, task performance and arrival rate. The outcome brings together the current knowledge in this area and will be of interest to researchers considering developing a methodology for modelling people in DES and to practitioners engaged with a simulation project involving the model ling of people’s behaviour.

Responsibility and Well-Being: Resource Integration Under Responsibilization in Expert Services

Responsibilization, or the shift of functions and risks from providers and producers to consumers, has become an increasingly common policy in service systems and marketplaces (e.g., financial, health, governmental). As responsibilization is often considered synonymous with consumer agency and well-being, the authors take a transformative service research perspective and draw on resource integration literature to investigate whether responsibilization is truly associated with well-being. The authors focus on expert services, for which responsibilization concerns are particularly salient, and question whether this expanding policy is in the public interest. In the process, they develop a conceptualization of resource integration under responsibilization that includes three levels of actors (consumer, provider, and service system), the identification of structural tensions to resource integration, and three categories of resource integration practices (access, appropriation, and management) necessary to negotiate responsibilization. The findings have important implications for health care providers, public and institutional policy makers, and other service systems, all of which must pay more active attention to the challenges consumers face in negotiating responsibilization and the resulting well-being outcomes.

Responsibility and Well-being: Resource Integration under Responsibilization in Expert Services

Responsibilization, or the shift in functions and risks from providers and producers to the consumer, has become an increasingly common policy in service systems and marketplaces (e.g., financial, health, governmental). Responsibilization is often presented as synonymous with consumer agency and well-being. We take a transformative service research perspective and utilize the resource integration framework to investigate whether responsibilization is truly associated with well-being. We focus on expert services, where responsibilization concerns are particularly salient, and question whether this expanding policy is in the public interest. In the process, we develop a conceptualization of resource integration under responsibilization that includes three levels of actors (consumer, provider and service system), the identification of structural tensions to resource integration and three categories of resource integration practices (access, appropriation and management) necessary to negotiate responsibilization. Our findings have important implications for health care providers, public policy makers, and other service systems, all of which must pay more active attention to the challenges consumers face in negotiating responsibilization and the resulting well-being outcomes.