Developing a Production Structure Model Using Service-Dominant Logic—A Hypergraph-Based Modeling Approach

Financial markets are primarily driven by three key drivers, technologies, competition and globalization. These drivers are accompanied with challenging risks. Market authorities monitor activities in order to reduce to the barest minimum the adverse impacts some products and services have on the whole financial system. This indicates the need for a high quality monitoring and surveillance system. This paper examines financial markets as service systems that jointly create value to stakeholders. It proposes a framework for the design of financial market monitoring system based on the concept of service dominant logic, service science and systems thinking. Finally, it identifies a number of properties that need to be examined in financial markets service systems.

Moving towards a Non-Dyadic View on Service Systems and its Operationalization – Applying the Hypergraph-based Service System Model

Customer-oriented management of manufacturing systems is crucial in service-oriented production and product service systems. This paper develops the selection of dispatching rules in combination with alternative process flow designs and demand mix, for a maintenance, repair and overhaul center (MRO) of turbo shaft engines, both for complete engines and engine modules. After an initial systematic screening of priority dispatching rules, the design of experiments and discrete-event simulation allows a quantitative analysis of the better rules for the alternative process flows with internal and service metrics. Next, the design of experiments with analysis of variance and the Taguchi approach enables a search for the optimal combination of process flow and dispatching rules. The consideration of extra costs for overdue work orders into the costing breakdown provides a quantitative evaluation of the optimum range of load for the facility. This facilitates the discussion of the significant trade-offs of cost, service, and flexibility in the production system and the operational management alternatives for decision-making.

An Intentional Approach to the Engineering of Knowledge-intensive Service Systems

The civil aviation industry is undergoing rapid development. However, the on-time rate of airport flights and passenger service quality are not particularly satisfying. The cause of the above problems is the contradiction between the limited operational support capability and the continuous growth of passenger traffic volume. Therefore, the key to solving these problems is achieving situation awareness of airport operation. Many situation awareness algorithms, typically categorized into modeling and machine learning, have been proposed in the past years. However, existing models lack flexibility and their prediction accuracy is unstable. Machine learning’s results cannot be timely and effective when external conditions are suddenly changed although some related algorithms have higher accuracy because of the retraining of artificial neural network (ANN). This paper proposes a situation awareness method based on Petri nets (PNs). This method introduces the queuing theory and perceptual parameters into the existing PN and constructs the perceptual PNs’ model for general service systems so that it can quickly model different scene service systems. In combination with the ANN, this paper proposes a complete situation awareness algorithm to realize a sustained and accurate situation awareness prediction of the service system by solving point estimations of the macroscopic and microscopic situation in this model, which helps to address some challenges faced by current civil aviation airports. By experimenting on-ground support in civil aviation airports and the access of website as well as comparing the situation separately with Airport Collaborative Decision Making and stochastic PNs, the validity and accuracy of the algorithm proposed in this paper are well verified.

In this paper, we investigate dynamic quality and pricing decisions for customer-intensive service systems with online reviews. We construct a dynamic programming model to determine the optimal quality and pricing strategies. We find that with online reviews, the supplier is forced to provide a higher quality at a higher price for fewer customers, especially when the customer intensity is high. Interestingly, although online reviews deliver quality information for later consumers, the provided quality may decrease over time. Next, we compare the optimal strategies with those of models of either quality flexibility or pricing flexibility, respectively, to examine the merits of our developed model of both quality and pricing flexibilities. The comparison results demonstrate that our model can achieve higher profits, and the advantages of our model increase with the number of periods. In addition, quality (pricing) flexibility is more valuable when consumers are more sensitive to service price (quality). Furthermore, we compare our formulated model with the model for a regular service system, and we illustrate that the optimal quality and pricing strategies in our system are quite different from those of the regular service system.

This research deals with the study of Product – Service System (PSS) and inventory control for Malaysian palm oil plantation company. PSS is a managing system that combining product and service in one system. PSS is essential to provide better environmental impart, improve competitiveness and to help the company satisfy the demand from customer. However, PSS could not be running smoothly when the inventory of product and service are managed in separate interface systems, which is by using manual inventory control like Microsoft Excel and handwriting documentation. In order to make PSS inventory control easier and systematic, an inventory application system is developed. This research is focusing on developing a PSS inventory control tool which could help in decision and calculation making for product and service of palm oil plantation.

A study related to product service systems (PSS), SERVQUAL and knowledge management system (KMS) – A review

As the development of Service-oriented architecture and service engineering, they have been generally adopted as the architecture and engineering method of software. More and more service applications and systems are constituted by distributed resources and web services which means more challenges in dynamic, varied and complex network environment. At the same time, the dependence and interactivity between the elements of networked service systems result in faults and difficulties in understanding and upgrading system and making the systems much more weakness. In this paper, according to the dynamic characteristics of the networked service system, we propose a network characteristics measure method and metrics for service system (MSS). Service system is defined by the descriptions of six important parameters at system level, which include service complexity, service cooperation relationship factor, service node factor, service cooperation factor, and service composition factor. Then the corresponding simulation is introduced by using the characteristics measure method and the analysis of the simulation results is also given. At last, a dynamic on-demand service composition algorithm based on MSS is designed and its feasibility and effectiveness are verified.

Differentiation opportunities for providers of traditional products and services are declining due to increasing global competition. As a result, companies are transforming into solution providers offering integrated bundles of products and services, so called Product Service Systems (PSS). The development of PSS requires intense collaboration of different disciplines (e.g. mechanical, software or service engineering) to produce a solution that fits the customers' needs. However, each discipline relies on specific engineering models, produces heterogeneous artifacts and uses different languages to describe them. For successful integration of the different PSS components, developers need a joint system model that allows understanding interdependencies and tracing the evolution of artifacts. In this context traceability is of utmost importance since requirements are specified solutions independent across different disciplines. Our research addresses this challenge by proposing a corresponding reference model. Based on a literature analysis, modeling workshops with experts in various engineering disciplines have been conducted. Integrating the insights from literature and workshops, a reference model has been iteratively developed and evaluated. This model contributes to research on cross-domain traceability of requirements and other artifacts. From a practical perspective, the reference model can be used to develop tools supporting collaborative PSS engineering and improving cross-disciplinary understanding.

The objective of the information system (IS) development project is to develop and modify systems that satisfy customers' and users' needs on schedule and within a budget. The early activities in information systems development, i.e. the front end of innovation in information systems, are recognized as critical and important steps; poor execution of these activities is an almost certain guarantee for a failure of the final IS product. However, there are many problems related to the early phases of IS development, and therefore this research paper presents a conceptual model for categorizing the problems in the front end of innovation in IS. Based on this conceptual model, we suggest that the activities in the early phases of information system development currently used in organizations do no work in large scale. In the directions for future research we discuss the need for new approaches in the front end of innovation in information systems.

The objects of the study were different systems of service and financial cover for the diagnostics, prophylactic activities and expertise of occupational diseases (ODs) in Bulgaria as well as in some Central European countries. The Aim of the study was to investigate different systems of a service and a financial cover for the medical activities on ODs in Bulgaria and in some Central European countries, and to find a decision for the existing problems in Bulgaria. Materials: The information from the existing legislative acts on ODs in Bulgaria, as well as the information from the Central European countries acts in Internet Web pages of the WHO collaborating centers on occupational, centers of public health as well as clinics on ODS was studied. Discussion: There is well organized and structured system on ODs in Bulgaria, but there are some problems as well. With regard to this it is necessary to ensure a different financial cover for medical activity concern diagnostics and treatment on ODs. It is compulsory to be improved the qualification on occupational diseases of specialists on "ODs", specialists on "occupational medicine", as well as general practitioners and other clinicians in our country. Scripta Scientifica Medica 2009; 41(1): 57-60.

In this paper, a unified definition of the service system is proposed. The motivation of this research effort is based on our observation that there are diverse definitions or descriptions of the service system in the literature and they have not provided an identity of the service system. Our goal to define the service system is thus to establish its identity. The most salient feature in our definition is the introduction of three subsystems in a service system: infrastructure, substance, and management. The substance flows over the infrastructure under the constraints of management. A service is established at the moment when the substance interacts with the human to cause a change in the human's status or state under a protocol, which further meets the human's request and need. With this new definition, a service system can be distinguished from other systems, such as manufacturing system, agricultural system, and product system. The new definition will be useful to classification of various service systems and various theories for service systems, which is the key to knowledge management for service systems and to optimization of design and management of service systems.

The importance of technologies for services has been remarkably emphasized recently with the terms “digitalization” and “smart service systems.” Technologies, especially information and communications technologies, have been regarded as an important driver of innovating services, and various researchers of services and service systems have investigated the development of technology-assisted service systems and their methods. However, few studies report how to generalize and disseminate developed service systems and technologies for other service systems. This type of study is essential to expand the impact of the study on technology-assisted service systems on the industrial and societal levels. As our research question, we examined the necessary processes and deliverables to develop and disseminate technology-assisted service systems. We analyzed five cases of a service engineering research project in Japan that aimed at improving service industry productivity through disseminating developed technologies. We conducted semistructured interviews with the researchers responsible in each case. As a result, we clarified the generalization process through continuous codevelopment with stakeholders in the same or different service systems. We also specified a set of research outputs: technology, activity guideline, and application process, designated as a technological support model for a service system. The features of these outputs can be emphasized by categorizing them into three types: knowledge-worker support model, organization management support model, and association management support model. These processes and outputs provide a practical guideline for developing and disseminating technology-assisted service systems effectively.

Service systems are essential to the execution of business services. When designing a service system, it is important to consider its global architecture to enable optimisation of high-level decision-making. In this paper, based on the analysis of the similarities between software and service systems, a new concept, service architecture, is presented. Service architecture (SA) defines the high-level structure of a service system, including service elements and their co-production relationships. The design quality of SA has a strong effect on the quality of service. Based on the summarisation of various service systems, we present several typical service architectural styles that can be directly reused to facilitate the development of high quality and efficient service systems. These styles are classified into three types, creational, structural and behavioural, based on a set of distinct dimensions. Features, application scenarios, graphical topology and typical cases for each style are then briefly discussed. In addition, comparisons between these styles, especially regarding their non-functional features, are shown. The results of this paper will aid in the study of methodologies for service system development.