Use Of Service-oriented Architecture Research Articles

Finding a conceptual approach to developing an architecture of general-purpose services for economic researches

The object of research is the architecture of general-purpose services for economic researches. The excessive popularity of service-oriented architecture implementations has led to consideration of the application of this approach in the production of organizations engaged in processing statistical and economic information for analytical research. This is due to the possibility of reusing services, each of which is designed to perform specific statistical functions, and the availability of design solutions for compiling these functions into a program for implementing a statistical task solution, using orchestration as a basis for dynamic service calls. The paper proposes an approach to the development of external statistical services as a set of software products for solving analytical tasks by groups of independent researchers. Since such researchers do not have sufficient financial support, the use of external statistical services will allow them to conduct an in-depth analysis of their research results. The proposed approach assumes that such a service should have its typical data storage structure with fixed types and attributes, to which the researcher imports their own data, selects a calculation execution scheme, initializes their execution, and receives results. Taking into account this storage scheme, the authors have identified the main groups of metadata necessary to describe the implementation of the statistical process. A statistical business process typically consists of a set of procedures that implement certain statistical operations and data transformations, and the provided set of metadata allows for the realization of the process goal and activity. Issues that require further in-depth research for the practical implementation of the proposed idea have been identified. The use of service-oriented architecture for building statistical processes allows for standardizing the approach by unifying the functions of individual services. The availability of possibilities for practical implementation of software products in a service-oriented architecture using a cloud environment in modern IT industry serves as a guide for further research direction.

ПЕРСПЕКТИВИ СТВОРЕННЯ СТАТИСТИЧНИХ СЕРВІСІВ ЗАГАЛЬНОГО КОРИСТУВАННЯ ДЛЯ ЕКОНОМІЧНИХ ДОСЛІДЖЕНЬ

The excessive popularity of service-oriented architecture implementations has led to considera-tion of the application of this approach in the production of organizations engaged in processing statis-tical and economic information for analytical research. This is due to the possibility of reusing services, each of which is designed to perform specific statistical functions, and the availability of design solu-tions for compiling these functions into a program for implementing a statistical task solution, using orchestration as a basis for dynamic service calls.The article proposes an approach to developing external statistical services as a set of software products for solving analytical tasks by groups of independent researchers who do not have sufficient financial support and for whom the use of externalstatistical services will provide the opportunity to conduct in-depth analysis of their research results. The proposed approach assumes that such a service should have its typical data storage structure with fixed types and attributes, to which the researcher imports their own data, selects a calculation execution scheme, initializes their execution, and receives results. Taking into account this storage scheme, the authors have identified the main groups of metadata necessary to describe the implementation of the statistical process. A statistical business process typi-cally consists of a set of procedures that implement certain statistical operations and data transfor-mations, and the provided set of metadata allows for the realization of the process goal and activity.Issues that require further in-depth research for the practical implementation of the proposed idea have been identified. The use of service-oriented architecture for building statistical processes allows for standardizing the approach by unifying the functions of individual services. The availability of pos-sibilities for practical implementation of software products in a service-oriented architecture using a cloud environment in modern IT industry serves as a guide for further research direction.

Use of Process Modelling for Optimization of Molecular Tumor Boards

In Molecular Tumor Boards, a team of experts discuss the individual therapy options of a cancer patient based on their individual molecular profile. The process—from recommendation request, through molecular diagnosis, to a personalized therapy recommendation—is complex and time-consuming. Therefore, process optimization is needed to decrease the workload of physicians and to standardize the process. For this purpose, we modeled the current workflow of the Molecular Tumor Board at the University Hospital Hamburg-Eppendorf on Service-Oriented Architecture using Business Process Modeling and Notation to highlight areas for improvement. This identified many manual tasks and an extensive workload for the physician. We then created a novel, simplified, more efficient workflow in which the physician is supported by additional software. In summary, we show that the use of Service-Oriented Architecture using Business Process Modeling and Notation for Molecular Tumor Board processes promotes rapid adaptability, standardization, interoperability, quality assurance, and facilitates collaboration.

Integration of digital library server with Service Oriented Architecture (SOA) based on cloud computing using proxmox server

With the advancement of computer virtualization technology, the use of cloud computing technology began to be scrutinized by researchers. With the existence of cloud computing technology can make computer virtualization on a server that is running. This can save the cost of providing information technology and operational infrastructure independently for each service that will be served. With this technology one physical machine is made into a shared resource that can be shared and used by several services at once. In this study made 4 servers using SLIMS7, digital libraries are virtual machines implemented in cloud computing servers with Proxmox servers. Database server digital library integration uses Service Oriented Architecture (SOA), by connecting to 4 virtual machine servers. Integration is carried out on the book data search system by entering keywords as book data searches that exist in each digital library server, with the results of displaying all book data on each digital library server according to the keywords. The conclusions of this study obtained after testing the system include the acquisition of a new model in the use of Service Oriented Architecture (SOA) to integrate the search for data books that exist in 4 digital library servers.

Efficient Device-to-Device Service Invocation Using Arrowhead Orchestration

The Internet of Things (IoT) enables interaction from real-world physical objects using sensors to the virtual world of computers and the Internet. The use of service-oriented architecture (SOA) is one step in the creation of basic and complex interactions between several sensors and actuators. However, the use of SOA-enabled technologies alone does not meet all requirements of how sensor and actuator systems could be integrated to create distributed monitoring and control applications. The centralized, traditional method of communication in wireless sensor networks via a gateway presents drawbacks that have to be addressed; device-to-cloud communication adds higher latency and higher power consumption and is less robust than the device-to-device (D2D) communication approach. Moreover, all these characteristics reduce the scalability of the network, thus limiting the use of IoT in the industry. In this article, the proposed method utilizes the arrowhead framework orchestration system to generate service composition within a (wireless) network formed by IoT devices. The aim is to achieve efficient D2D service invocation to reduce the drawbacks of today’s widely used device-to-cloud approach. The method in this article performs efficient service composition for industrial IoT, including mapping SOA service composition in very small resource-constrained devices using the arrowhead orchestration. The results presented in this article at the service level can increase performance and robustness in fog computing on resource-constrained devices.

Service-Oriented Architecture for E-Marketplace Model Based on Multi-Platform Distributed System

E-Commerce has become a solution in online transactions. Based on data from the Central Bureau of Statistics of Indonesia, in 2016, there were 26.2 million users and continued to grow by 17% from 2006 to 2016. On the other hand, the development of e-marketplace has also grown significantly in Indonesia. There are 100 trillion transaction value in 2018. Currently, e-commerce actors are still unable to compete with existing e-marketplace. This is due to limited stock and types of products sold by e-commerce. One of the challenges faced by e-commerce managers is increasing the number of customers and transactions. The purpose of this study produced an architecture for data integration between e-commerce to the e-marketplace. The multi-platform e-marketplace model was developed that was integrated and could distribute products from several e-commerce. Service oriented architecture was used as a method in integrating and distributing products from e-commerce to e-marketplace. Based on the results of testing with 90 request can be concluded that the process of data distribution from e-commerce to e-marketplace can be done in a fast time with average loaded time of 0,72 seconds and the size of data accessed is relatively small with packed average size of 5,68 KB. The conclusion of this study remains the use of service-oriented architecture can be applied for e-marketplace that integrated with several e-commerce for supporting some feature like online payment and courier.

CONTEXT-AWARE ONTOLOGY AND WEB SERVICES DISCOVERY FOR DISTRIBUTED EMBEDDED REAL-TIME SYSTEMS

Distributed Embedded Real-Time Systems (DERTS) consists of hundreds of interconnected devices, typically small and wirelessly-connected, which are designed to work for a long period of time. The massive interconnection of devices and the usage of heterogeneous languages, operating platforms and data standards make DERTS a competitive and complex system. In addition, the DERTS program is setting a trend of moving away from centralized, high-cost products towards lower cost and high volume products. In this regard, there is nothing more natural than considering the use of Service Oriented Architecture (SOA) to assist in the development of DERTS. This is because SOA enables different devices to exchange data regardless of issues of complexity. Moreover, context-awareness, which is widely studied for DERTS, also plays an important role for effective communication among devices. Thus, to build service-based DERTS while managing the complexity, context-aware ontologies are the best solution. In this paper, we developed a context-aware ontology for DERTS which is known as ConOntDERTS. To evaluate ConOntDERTS, we used two methods. In the first method, a criteria-based ontology evaluation was used; while in the second method, a survey was conducted to show that the results produced by ConOntDERTS were almost the same as human perception. Results of the evaluation show the consistency and feasibility of our ontology and the statistical test results show that ConOntDERTS ontology can produce consistent results with human perception.

Autonomous Production Workstation Operation, Reconfiguration and Synchronization

The decoupling of production line’s workstations and its equipment from the higher layers in an automation architecture has the potential to provide the following benefits: 1. Dynamic workstation reconfiguration; 2. Autonomous synchronization of workstation equipment; 3. Autonomous workstation operation.Each of these benefits will improve the automation flexibility at each workstation and for the whole production line.Introducing IoT equipment into workstations and making use of Service Oriented Architecture (SOA) fundamentals such as lookup, late binding and loose coupling are shown here to provide the above benefits. In addition, the cost of such an implementation and deployment seems to be significantly less than the comparable cost for legacy technology.An implementation, using the SOA approach on a workstation, at the Volvo Trucks production facility in Gothenburg was made possible thanks to the Arrowhead framework, which has been shown to provide all three listed improvements.The analysis of the above-mentioned demonstration clearly shows how the workstation reconfiguration is made simple using the arrowhead ServiceRegistry system. Autonomous synchronization is achieved through the look-up and late binding capabilities provided by the arrowhead Orchestration system in cooperation with the ServiceRegistry system. Finally, autonomous workstation operation is provided through the support of the arrowhead Workflow Manager and Workflow Executor systems.All these benefits were achieved at a significantly reduced cost compared to comparable legacy implementation.

Infrastructural approach and geospatial data processing services in the tasks of territorial development management

The technology for creating an information and analytical environment (IAE) for spatial data processing based on the use of spatial data infrastructure (SDI) components and a service-oriented paradigm was proposed for the management of territorial development. The environment is characterized by its spatial nature and distribution of territorial information resources. At the same time, emphasis is placed on the transition from a standard SDI, as an access medium for the exchange of spatial data, to an SDI of an integration type, as an environment for access, exchange, creation, storage of new sets of spatial and thematic data and processing services. The use of Service-oriented Architecture (SOA), open standards by OGC (Open Geospatial Consortium), Web technologies, standardization of the browser’s interface and Web services, allowed to move from local to distributed and “cloud” computing in which information and computing resources are provided as Web services. The technology for creating an information and analytical environment involves the use of sets (combinations) of thematic Web services with standardized interfaces integrated with standard protocols (SOAP, WSDL, etc.).

The Basic Study on the Platform of Language-Communication Assessment Protocol Application for Tablet PC by the Focus Group Interview (FGI) Method

As for degraded cognitive ability observed in the elderly population, early detection and efficient care are feasible through language-communication assessment protocol in the use of tablet device. Language- communication assessment in the use of tablet device has made objectivity and consistency of the suggestion of test items, convenience of preservation and record of the performance ability, and suggestion of norm on the language ability possible. This study has identified elements, to be considered to suggest the language-communication assessment protocol development platform in the use of service-oriented architecture (SOA) through the group interview with speech pathologists and engineering specialists. The necessity of language-communication assessment protocol development for tablet device has been identified in three domains including the assessment method, mobility, and efficiency & accuracy. However, it was revealed that uniqueness of sub-category of language-communication assessment and environment and expenses of using devices shall be considered at the same time to realize them. Since SOA provides the custom applied programs by considering the role of user, circumstances of wireless communication and remaining electricity of tablet device in connection with previous services, it is expected to make efficient languagecommunication assessment feasible on the elderly for a long time.

Composition and verification of student-oriented courses

In the last few years, the popularity of online degrees has dramatically increased. In current online degrees, the school specifies the courses required to obtain a degree. For each course, the instructor specifies the course elements including teaching method and assessments. But different students have different capabilities and constraints. Most institutions provide the same courses. A student should be able to select the course that best matches his capabilities and constraints as long as it satisfies the required course outcomes. To achieve this goal, we propose the use of service-oriented architecture (SOA). We introduce an extended service-oriented architecture and an extended service definition, which will enable the specification and provision of student-oriented courses. We also propose a formal composition approach. To formally verify the result of the composition, we have also introduced a formal verification approach using the model checking tool UPPAAL.

Composition and verification of student-oriented courses

In the last few years, the popularity of online degrees has dramatically increased. In current online degrees, the school specifies the courses required to obtain a degree. For each course, the instructor specifies the course elements including teaching method and assessments. But different students have different capabilities and constraints. Most institutions provide the same courses. A student should be able to select the course that best matches his capabilities and constraints as long as it satisfies the required course outcomes. To achieve this goal, we propose the use of service-oriented architecture (SOA). We introduce an extended service-oriented architecture and an extended service definition, which will enable the specification and provision of student-oriented courses. We also propose a formal composition approach. To formally verify the result of the composition, we have also introduced a formal verification approach using the model checking tool UPPAAL.

Process-oriented design of software systems as a system service

Now, it is time to move to a new programming paradigm, not associated with objects and with business processes and their components-business functions. The main idea is to build an application by discovering and using services, available on the network, to perform a certain task. This approach does not depend on specific programming languages and operating systems, and involves the use of service-oriented architecture (SOA) applications, built on the basis of formalized business processes whose functions are represented in the form of reusable services with transparently described interfaces. The article discusses the development of systems of services for the implementation of business processes via a process-oriented business model and features of ontologies of relevant subject areas.

INTEGRAÇÃO DE SISTEMAS DE INFORMAÇÃO EM SAÚDE COM A UTILIZAÇÃO DE SERVICE ORIENTED ARCHITECTURE (SOA)

The growing pressure to increase the quality of health services, as well as reducing costs, has caused healthcare organizations to increase the use of Information and Communication Technologies (ICT) through the development and adoption of Healthcare Information Systems (HIS). However, the need for exchange of information between HIS and between organizations has also increased, resulting in the problem of interoperability. This problem is considered complex, but the use of Service Oriented Architecture (SOA) appears as a good way to address this issue. This paper presents a systematic review, performed in order to find out how and in which contexts SOA is being used to ensure the interoperability of HIS.

Understanding Services: Understanding Stakeholders

AbstractThere are many different services in general use today. New ones are being developed driven by the move from customers owning equipment to it being provided by suppliers as a service. We all know what services are, we use them every day. All the systems we develop and deliver end up providing or supporting some sort of service. The aim of the INCOSE UK Service Systems Engineering Working Group is to identify areas of the engineering lifecycle, the methods, and the techniques that need to be different for engineering services as opposed to ‘traditional systems engineering’ for the engineering of products.When INCOSE was formed there were various definitions of ‘What is a System?’ it took time to sort out but now is not normally an issue. Today established standards; SEBOK, DoDAF, MoDAF, Open Group, ITIL, CMMI; have different definitions of a Service. These differences are not just differences in wording driven by stakeholder views that can lead to significant differences of what is expected in delivering services. To understand and successfully deliver services, we need to understand and relate such definitions, and then use them within our engineering of services.In this work we have used Case Studies for Services that cover various areas of interest for businesses in INCOSE UK and used them to establish the scope of our work. The use of the term ‘Service’ has been extracted from literature together with definitions. The definitions have been grouped, related and where necessary re‐worded to provide a map of terms and the various definitions extracted from literature understood using this map.The use of Service Oriented Architecture (SOA) outside the IT Sector has been considered, along with previous work in this area, as the architecture for understanding Services. We have illustrated this through simple application to one of the case studies. This is a different but complementary approach to understanding services and work with further case studies is needed to understand how it can best be applied.

SFL Algorithm for QoS-based Cloud Service Composition

With the advent of cloud service-based applications and Software as a Service (SaaS), new applications have recently known an increasing use of service-oriented architecture (SOA). This model has allowed computer science and associated industries to build new customized applications, by using the available and the existing cloud services bridged together dynamically to form a complex workflow process with more functionalities. However cloud services with similar and compatible functionalities may be offered by multiple providers but may also be offered at different QoS levels. Hence, to build a composite service with a high QoS, a decision should be made based on end-to-end QoS. This work proposes a new approach, for QoS-aware cloud service composition, which addresses a universal model, with end-toend QoS. It also proposes an effective evolutionary method based on Shuffled Frog Leaping Algorithm (SFLA), which is satisfying global and local constraints. Therefore, in order to evaluate the robustness of the proposed approach, we have evaluated the impact of several parameters that are highly significant in evolutionary methods, such as the impact of the population size, number of candidate services per task and number of criteria. The experimental results show that the chosen algorithm performs better than the ones based on Genetic Algorithm (GA).

Applying gravitational search algorithm in the QoS-based Web service selection problem

With the growing use of service-oriented architecture for designing next generation software systems, the service composition problem and its execution complexity have become even more important in responding to different user requests. The gravitational search algorithm is one of the latest heuristic algorithms. It has a number of distinguishing features, such as rapid convergence, lower memory usage, and the use of particular parameters, for instance, the distance between the solutions. In this paper, we propose a model for the optimization of the Web service composition problem based on qualitative measures and the gravitational search algorithm. To determine the efficacy of this proposed model we solve the problem with the particle swarm optimization algorithm for comparison. Simulation results show that the gravitational search algorithm has a high potential and substantial efficiency in finding the best combination of Web services.

Field Robot Supporting the Activities of a Household Appliances Laboratory

The development of a field robot for diagnosis and testing in the production line and laboratories (e.g., life test labs) of household appliances is considered. The proposed system targets the repetitive task of taking numerous measurements on products in order to guarantee a standardized and repeatable quality control. In this solution the diagnosis and testing station is not a fixed system but a flexible one, based on mobile robot with sensory and diagnostic skills. Such system achieves high flexibility own to its mobile nature and cost reduction due to the reduction in the number of measurement devices. The system can be interconnected with surrounding production and test systems to provide relevant feedback information for an integrated production and measurement process. This paper focuses on the aspects related with autonomous mobile platform development. A navigation module has been developed to guarantee the reliable performance in an indoor highly structured environment with position uncertainties of devices to be tested. A localization procedure has been integrated in the navigation module making use of Service Oriented Architecture (SOA). Preliminary tests show the feasibility of the proposed solution for the considered field application.

The Impact of SOA for Achieving Healthcare Interoperability

The evaluation of a service-oriented prototype implementation for healthcare interoperability. A prototype framework was developed, aiming to exploit the use of service-oriented architecture (SOA) concepts for achieving healthcare interoperability and to move towards a virtual patient record (VPR) paradigm. The prototype implementation was evaluated for its hypothetical adoption. The evaluation strategy was based on the initial proposition of the DeLone and McLean model of information systems (IS) success [1], as modeled by Iivari [2]. A set of SOA and VPR characteristics were empirically encapsulated within the dimensions of IS success model, combined with measures from previous research works. The data gathered was analyzed using partial least squares (PLS). The results highlighted that system quality is a partial predictor of system use but not of user satisfaction. On the contrary, information quality proved to be a significant predictor of user satisfaction and partially a strong significant predictor of system use. Moreover, system use did not prove to be a significant predictor of individual impact whereas the bi-directional relation between use and user satisfaction did not confirm. Additionally, user satisfaction was found to be a strong significant predictor of individual impact. Finally, individual impact proved to be a strong significant predictor of organizational impact. The empirical study attempted to obtain hypothetical, but still useful beliefs and perceptions regarding the SOA prototype implementation. The deduced observations can form the basis for further investigation regarding the adaptability of SOA implementations with VPR characteristics in the healthcare domain.

IBM business transformation enabled by service-oriented architecture

This paper discusses the use of service-oriented architecture (SOA) as one of the key elements supporting business transformation at IBM. It describes the internal SOA strategy, SOA governance, organizational impacts, and several IBM internal SOA case studies. The top-down and bottom-up approaches to promoting SOA within the enterprise are also illustrated, along with a set of SOA business and information technology lessons learned.