Adoption Of Service-oriented Architecture Research Articles

QoS‐aware web service recommendation via exploring the users' personalized diversity preferences

AbstractWith the popularity and wide adoption of SOA (service‐oriented architecture), a massive amount of Web services emerge on the Internet. It is difficult for users to find the desired services from a large number of services. Thus, service recommendation becomes an effective means to improve the efficiency of using service. Considering that the users' QoS (quality of service) preferences are often unknown or uncertain, the recent QoS‐aware service recommendation methods recommend QoS‐diversified services for users to increase the probability of fulfillment of the service list with a limited number of services on users' potential QoS preferences. However, the existing QoS‐diversified service recommendation methods recommend services with a uniform diversity degree for different users, while the diversified preference requirements are not considered. To this end, this article proposes a service diversity adjustment algorithm, which selects more diversified services outside of the original service recommendation list to replace the services in the present recommendation list to approximate the QoS diversity preference of the active user. In this way, the probability of meeting the user's potential QoS preference requirements is improved. Comprehensive experimental results show that the proposed approach can not only provide personalized and diversified services but also ensure the overall accuracy of the recommendation results.

Neural and Attentional Factorization Machine-Based Web API Recommendation for Mashup Development

The wide adoption of Service Oriented Architecture (SOA) has driven the creation of a massive amount of applications on the Internet, which includes the popular Mashups composed from multiple existing Web APIs. The availability of a large number of Web APIs with diverse functionalities on the Web makes it difficult for users to find APIs meeting their needs for Mashup development. To relieve this difficulty, recommending Web APIs for Mashup development has become an effective solution. A dozen of service recommendation approaches were proposed based on multi-dimensional features extracted from the service repository over the last couple of years, e.g., similarity based matching methods, matrix factorization based models, and factorization machine based models. Among these existing works, Factorization Machine (FM) based models, in particular the deep learning based FM models, have shown better performance compared with other conventional collaborative filtering techniques. Despite their superiority, the deep learning based FMs still have some strong model assumptions that can harm the recommendation accuracy. For example, it models factorized interactions with the same weight and ignores the non-linear and complex inherent structure in data. In a real-world service recommendation scenario, different predictor variables usually have different predictive power and not all features are predictable for estimating the target. Also, higher-order feature interactions are usually underlain in complex user-service environments. To address these deficiencies, this paper proposes a hybrid factorization machine model with a novel neural network architecture, named NAFM, which integrates a deep neural network to capture the non-linear and complex feature interactions and uses an attention mechanism to capture the varying importance of feature interactions. Comprehensive experiments are conducted on a real-world dataset from ProgrammableWeb. The experimental results show that the proposed approach outperforms the existing state-of-the-art models for service recommendation.

Anatomy of one service-oriented architecture implementation and reasons behind low service reuse

This paper evaluates the promises of service reusability through an analysis of services implemented in a manufacturing enterprise. A total of 103 services implemented in the case enterprise are analyzed to understand the enablers and obstacles that have led to the reuse ratio of 13 %. The main identified enabler for reusable services was the capability to define the services as a part of reusable business concepts, which is aligned with some of the earlier studies on the adoption of service-oriented architecture in enterprises. The main reason for having overlapping services in the case enterprise was lagging migration of legacy services to use newer, reusable services. The results can be used to develop service engineering methodologies for better reusability, and the paper provides practical guidelines to help in the application of integration development efforts toward reusable services.

Bridging Service-Oriented Architecture and IEC 61499 for Flexibility and Interoperability

In recent years, requirements for interoperability, flexibility, and reconfigurability of complex automation industry applications have increased dramatically. The adoption of service-oriented architectures (SOAs) could be a feasible solution to meet these challenges. The IEC 61499 standard defines a set of management commands, which provides the capability of dynamic reconfiguration without affecting normal operation. In this paper, a formal model is proposed for the application of SOAs in the distributed automation domain in order to achieve flexible automation systems. Practical scenarios of applying SOA in industrial automation are discussed. In order to support the SOA IEC 61499 model, a service-based execution environment architecture is proposed. One main characteristic of flexibility-dynamic reconfiguration-is also demonstrated using a case study example.

Survey of SOA and cloud-based B2B e-commerce and supply chain applications

The IT for building a static and centralised infrastructure and applications does not provide companies flexibility to make rapid changes for the needs of evolving business. The changes in a traditional architecture could be complex, inefficient, and costly. Service-oriented architecture (SOA) provides a flexible and standards-based approach to IT architecture that uses a modular approach to delivering IT services. The ability of SOA to integrate with new services quickly and easily has attracted many companies to adopt SOA today. Cloud computing is now persuasive. It has unique capabilities in enabling efficient and cost effective business processes. A company may consider moving their IT architecture to a cloud computing infrastructure. Since SOA and cloud computing share many common characteristics of service orientation for interoperability, this paper discusses the adoption of SOA for the future preparation of the cloud. This paper further illustrates the utility and capabilities of SOA/cloud strategy by discussing its applicability in the domains of e-commerce and inter-enterprise collaboration. Commercially available solutions are surveyed to show the current status and trends in this arena.

Dynamic Service Composition for Telecommunication Services and Its Challenges

As communication networks have evolved towards IP (Internet Protocol) networks, telecommunication operators has expanded its reach to internet multimedia web content services while operating circuit-switch networks in parallel. With the adoption of SOA (Service Oriented Architecture) that enables service capability interfaces to be published and integrated with other service capabilities into new composite service, service composition allows telecommunication providers to accelerate more new services provisioning. From the perspective of telecommunication providers to deliver integrated composite service from different providers and different network protocols, this paper is aimed to present the current service composition based on middleware approaches; discuss the requirements of meeting the challenges; and compare the approaches.

A Framework for Assessing Enterprise-Wide SOA Implementation Readiness

Many vendors have acclaimed Service Oriented Architecture (SOA) as a better way to design and build enterprise-wide information systems (EWIS). While these claims may be true in the private sector, there is scant evidence in the literature for the same success in the public sector. The adoption of Enterprise-wide SOA (ESOA) as the dominant development paradigm within an organization often requires significant organizational changes, which are difficult to achieve in the public sector, with its strict hierarchies and departmental independence. Although many government departments are beginning to adopt this new paradigm, the literature does not provide a suitable ESOA implementation readiness framework for use in the public sector. This research proposes a framework based on Critical Success Factors (CSFs) and a CSF scorecard to evaluate an organisation’s ESOA implementation readiness. The framework and scorecard were tested in a test case in the Malaysian government, and the results validate the accuracy and usefulness of both the CSF Framework and the CSF Scorecard.

Experiences using Tedeso: an extensible and interoperable model-based testing platform

The integration of novel software quality assurance tools into existing development environments must be performed in ways that leverage the benefits of the tools while minimizing their impact on existing software processes. This supports the adoption of new methodologies with minimal interference into core business practices. This paper discusses the design of Tedeso, an extensible and interoperable model-based testing platform developed to facilitate the automatic generation of tests, while supporting the needs of different stakeholders in a diverse and broad organization. We discuss Tedeso key design characteristics, in particular its extensibility and interoperability, provided through the use of a workflow-driven service-oriented architecture, and show how it has enabled and facilitated the adoption of model-based testing techniques in different business units in different sectors within SIEMENS. We also discuss some issues that come from the adoption of service-oriented architectures, showing how they have been managed in our platform.

SOA adoption in higher education: a practical guide to service- oriented virtual learning environment

The adoption of Service-Oriented Architecture (SOA) in higher education helps solve the adaptability problems by reducing the complexity of integration of new systems, by reusing services, and increasing the agility. Even more, using shared services and Cloud Computing solutions helps universities to create a collaborative and open environment, with low costs and efficient service management. This paper proposes a SOA adoption solution for universities with the aim of creating an environment where learners access more easily the digital information in order to support their lifelong education and career goals. Also, the paper analyses the integration of education systems and standards with SOA, as well as the creation of new educational environments. The solution helps understand the way universities can solve the complex and growing demands of the educational system with reduces investments.

SCAG

Service Oriented Architecture (SOA) provides a foundation to achieve software reuse that enables business professionals, who are not necessarily programmers, to exploit the intrinsic properties of software. A component-based programming model is the key factor in the rapid adoption of SOA. SOA exploits the properties of Component Based Software Engineering (CBSE) in the form of services. SOA components help to provide the business users with some flexibility to play around with the components and rewire them to create new business solutions. The complexity of SOA application plays an important role in project planning and determination of timeline and cost estimation and allocation of resources. This paper proposes a metric-based approach for the determination of relative complexity and coupling of Component based SOA application. We have proposed a Service Component Architecture Graph (SCAG) which can be used for graphical representation of the different service module, the service components in the service module and interaction among them. This metrics may be used by developers to assess the complexity of SOA application and if required redesign to create highly cohesive components with minimal coupling. It will also promote a culture of asset (reusable components) based development by considering the factor like usability, complexity, coupling etc. A case study is presented and graph based analysis is done for deriving the complexity, along with the other aspects of the architecture.

A Systematic Method for Performance Analysis of SOA Applications

The successful implementation of Service-Oriented Architecture (SOA) is not confined to Information Technology systems and required changes of the whole enterprise. In order to adapt IT and business, the enterprise requires adequate and measurable methods. The adoption of SOA creates new problem with regard to measuring and analysis the performance. In fact the enterprise should investigate to what extent the development of services will increase the value of business. It is required for every business to measure the extent of SOA adaptation with the goals of enterprise. Moreover, precise performance metrics and their combination with the advanced evaluation methodologies as a solution should be defined. The aim of this paper is to present a systematic methodology for designing a measurement system at the technical and business levels, so that: (1) it will determine measurement metrics precisely (2) the results will be analysed by mapping identified metrics to the measurement tools. Keywords—Service-oriented architecture, metrics, performance, evaluation.

The strategic value of SOA: a comparative case study in the banking sector

Information and Communication Technology (ICT) has helped to drive increasingly intense global competition. In turn, this intensity increases the need for flexibility and rapid changeability in ICT to support strategies that depend on organisational agility. We report a comparative, cross-cultural case study of the implementation of Service-Oriented Architectures (SOA) at a Scandinavian bank and a Swiss bank. The strategic rewards in the adoption of SOA appear to go beyond marketplace issues of ICT capability acquisition, and unexpectedly arise in the creation of an extensible organisational ICT architecture. The extensibility of the ICT architecture that results from the adoption of SOA provides potential for greater organisational agility (and thereby competitiveness).

A semantic web environment for components

AbstractComponent-based development (CBD) has become an important emerging topic in the software engineering field. It promises long-sought-after benefits such as increased software reuse, reduced development time to market and, hence, reduced software production cost. Despite the huge potential, the lack of reasoning support and development environment of component modeling and verification may hinder its development. Methods and tools that can support component model analysis are highly appreciated by industry. Such a tool support should be fully automated as well as efficient. At the same time, the reasoning tool should scale up well as it may need to handle hundreds or even thousands of components that a modern software system may have. Furthermore, a distributed environment that can effectively manage and compose components is also desirable. In this paper, we present an approach to the modeling and verification of a newly proposed component model using Semantic Web languages and their reasoning tools. We use the Web Ontology Language and the Semantic Web Rule Language to precisely capture the inter-relationships and constraints among the entities in a component model. Semantic Web reasoning tools are deployed to perform automated analysis support of the component models. Moreover, we also proposed a service-oriented architecture (SOA)-based semantic web environment for CBD. The adoption of Semantic Web services and SOA make our component environment more reusable, scalable, dynamic and adaptive.

SOA in reconfigurable supply chains: A research roadmap

Originally coming from the business world, service-oriented architecture (SOA) paradigm is expanding its range of application into several different environments. Industrial automation is increasingly interested on adopting it as a unifying approach with several advantages over traditional automation. In particular, the paradigm is well indicated to support agile and reconfigurable supply chains due to its dynamic nature. In this domain, the main goals are short time-to-market, fast application (re)configurability, more intelligent devices with lifecycle support, technology openness, seamless IT integration, etc. The current research challenges associated to the application of SOA into reconfigurable supply chains are enumerated and detailed with the aim of providing a roadmap into a major adoption of SOA to support agile reconfigurable supply chains.

On How Agile Systems Gracefully Migrate Across Next-Generation Life Cycle Boundaries

In this paper we explore the nature of migration as it applies to crossing system-retirement life cycle boundaries gracefully, intending to inform purposeful design of would-be, long-lived, always-effective enterprises, and the systems that support them. We use previous work on agile systems and enterprises to define migration as the crossing of a change in basic infrastructure, be it technical, organizational or strategic. We consider the classic view of the system life cycle and highlight its limitations in a rapidly changing world. We analyze two successful and contemporary large-scale migrations, and illuminate the factors that facilitated their success, contributing toward a pattern language for agile-system architecture in the process. Finally, the lessons of the analysis are suggested as potential informants for Force Transformation in the U.S. military and adoption of Service Oriented Architectures in the enterprise.

Adoption of service-oriented architecture by information systems

Service-oriented architecture (SOA) is widely accepted as a new paradigm for delivering useful functionality in a cost effective way. It forms a new trend to be adopted by organisations in mitigating legacy system problems as in to maximise interoperability, reusability, flexibility and cost efficiency. Legacy (management) information systems (IS), used in most of the organisations, are in preparation to adopt and accelerate adoption of SOA. However, the success does not depend on whether SOA is adopted, but rather, how it is adopted. Adoption approaches vary and will determine the resulting value of SOA to the enterprise/organisation. This article aims to research on how an organisation should apply a service-oriented design to systems that were previously standalone heterogeneous applications and in what way the SOA should be adopted.

Mainframe makeovers

It seems that the mention of SOA (service-oriented architecture) alone is enough to release the funds needed for IT departments to modernise mainframes. But should departments use SOA to drive traditional legacy mainframe upgrades under the guise of making systems SOA compliant? The IT industry has been at a loss when it comes to legacy mainframe systems. 'To modernise, or not to modernise?' has been the unanswered question of recent years. Legacy mainframe managed systems and associated maintenance costs are a considerable drain on IT department budgets. The costs are high because of interactions between the obsolete platforms and non-mainstream languages on which these legacy systems are built. Adoption of SOA has allowed IT departments to sneak in funding for modernisation programs. The underlying question to this trend is whether SOA should be used as a tool for driving forwards traditional legacy mainframe modernisation programmes under the guise of making systems SOA compliant? It appears the SOA name alone can release the funds required for IT departments to modernise their mainframes. What problem is a little white lie if it gets the job done?

An interorganizational knowledge-sharing security model with breach propagation detection

The increasing adoption of Service Oriented Architecture (SOA) is allowing more and more companies to integrate themselves in interorganizational netchain environments wherein knowledge assets can be electronically shared with selected business partners. The dynamic nature of these environments implies a need for organizations to protect and monitor the flow of their valuable knowledge assets throughout the netchain if they hope to maintain their long-term competitive positions. In this paper, we propose an interorganizational knowledge-sharing security model that integrates the value chain reference model (VCOR), the federated enterprise reference architecture model (FERA), and multidimensional data warehouse technologies to allow for the proactive monitoring of shared knowledge assets across an SOA-based netchain. The proposed architecture is novel In that it supports dynamic policy revision through the automated detection of knowledge-sharing breaches within a netchain--a process whose viability is demonstrated using network flow theory and a series of simulations. Existing business intelligence infrastructures can be readily modified to support the proposed model, as multidimensional data warehousing has already been adopted in many organizations.

Challenging the interoperability between computers in industry with MDA and SOA

The global market is willing to improve their competitiveness through collaborative work and partnerships, motivating the companies to look for enhanced interoperability between computer systems and applications. However, the large number of system's heterogeneity and the company's lack of resources and know-show have been preventing organizations to move ahead in that direction. Today, the OMG's model-driven architecture (MDA) makes available an open approach to write specifications and develop applications, separating the application and business functionality from the platform technology. As well, the service-oriented architecture (SOA) establishes a software architectural concept that defines the use of services to support the requirements of software users, making them available as independent services accessible in a standardized way. Together, these two architectures seem to provide a suitable framework to improve company's competitiveness through the adoption of a standard-based extended environment, challenging and enhancing the interoperability between computer systems and applications in industry. The paper, after illustrating the general motivations the industrial SMEs have to adopt open architectures to achieve interoperability for extended and collaborative enterprise practices, presents the emerging model-driven and service-oriented architectures. Then, it describes an innovative case study in validation by the industry, proposing a standard-based extendable platform to support an interoperable environment through the adoption of MDA and SOA. The paper finishes with discussion and concluding remarks concerning the empirical results obtained from the pilot demonstrator.

A model-driven framework for enterprise service management

With a steady pace of adoption of service-oriented architecture, enterprises have made significant progresses in implementing various kinds of Web services and converting existing applications to service-oriented architecture. As a significant number of services have been put into actual use, many service-oriented enterprises are faced with the problem of how to manage these services efficiently. In this paper, we propose a model-driven framework for a more efficient management of these services. In this framework, the creation and maintenance of enterprise integration solutions are modeled by flows, finite state machines (FSMs), role-based access control (RBAC) among other formal systems models as well as appropriate decision models. For instance, each enterprise integration solution would be modeled as composite services that can be described by respective flow, FSM and RBAC models. These solution models can then be stored, and later retrieved for the execution of these composite services. Furthermore, formal systems and decision models are also used to maintain and update these service-oriented solutions to improve the efficiency and quality of service management by taking advantage of the underlying service-oriented architecture.