Service-oriented Software Architecture Research Articles

A Security Process for the Automotive Service-Oriented Software Architecture

A Security Process for the Automotive Service-Oriented Software Architecture

Towards a Domain-Neutral Platform for Sustainable Digital Twin Development

In this paper, we propose an abstract domain-neutral architecture for a cognitive digital twin (CDT) and a software platform to develop such CDTs, including machine reasoning capabilities. Sustainable development refers here to an abstract model that enables a holistic view of limiting resources and has an ability to adapt to different application domains while reusing existing resources. The proposed solution allows for a unified abstract representation and the development of a wide range of diverse digital twins, as well as facilitating their interoperability. The abstract architecture consists of a four-layer structure (observation/actuation layer, data management layer, reasoning layer, and simulation layer) with an upper ontology to which the domain ontology of the specific CDT is mapped. The architecture relies on semantic web technologies, including ontology-based reasoning using OWL, and a loosely coupled, component-based service-oriented software architecture. The platform utilizes a microservice architecture that enables separate, loosely coupled services on each layer, message queues to provide asynchronous communication, and possesses cloud technologies to achieve scalability. The proposed approach was validated by implementing a software platform prototype and demonstrating its key features through two dissimilar scenarios. The first scenario demonstrates simple sustainable energy management through IoT systems inside smart buildings, while the second one demonstrates knowledge quality management based on knowledge space theory.

Agile Latency Estimation for a Real-time Service-oriented Software Architecture

This paper presents our testbed and software pipeline for automatic latency estimation for a service-oriented software architecture (SOA). This type of architecture consists of modular services that are dynamically combined at runtime to form a functioning system. As different service combinations become possible at runtime, agile approaches for testing the resulting systems become necessary. Besides other factors, latencies are of particular interest for the implementation of control systems. Our agile approach automatically generates dummy services, including interfaces and tasks for internal processing, based on a service description in a human-readable format. Services are then automatically distributed to the computers of our testbed, which are connected through Ethernet. We empirically obtain latency estimates for processing and communication steps for a given composition of services. In this paper we describe our data format, abstractions about internal run-time behavior of services and the code generation pipeline. The evaluation presents latency estimates that we are able to obtain through our testbed that resembles the sense-plan-act paradigm.

The monitoring system of hazardous technological objects based on unmanned aerial vehicles

The paper describes the system for monitoring of hazardous technological objects, which based on unmanned aerial vehicles. The feature of the system is the using of the intelligent computer vision subsystem in which hardware-implemented a convolutional neural network based on a system-on-a-chip. This subsystem recognizes objects of the earth’s surface and made decision about incidents at the monitoring area in real time. It also has service-oriented software architecture for ground- based system components. The paper presents results of the research of the required resources of a field-programmable gate array for implementation of error-correction encoder-decode based-on-board.

Using Vehicles as Fog Infrastructures for Transportation Cyber-Physical Systems (T-CPS)

The advent of intelligent vehicular applications and IoT technologies gives rise to data-intensive challenges across different architectural layers of an intelligent transportation system (ITS). Without powerful communication and computational infrastructure, various vehicular applications and services will still stay in the concept phase and cannot be put into practice in daily life. The current cloud computing and cellular set-ups are far from perfect because they are highly dependent on, and bear the cost of additional infrastructure deployment. Thus, the geo-distributed ITS components require a paradigm shift from centralized cloud-scale processing to edge centered fog computing (FC) paradigms. FC outspreads the computing facilities into the edge of a network, offering location-awareness, latency-sensitive monitoring, and intelligent control. In this article, the authors identify the mission-critical computing needs of the next generation ITS applications and highlight the scopes of FC based solutions towards addressing them. Then, the authors discuss the scenarios where the underutilized communication and computational resources available in connected vehicles can be brought in to perform the role of FC infrastructures. Then the authors present a service-oriented software architecture (SOA) for FC-based Big Data Analytics in ITS applications. The authors also provide a detailed analysis of the potential challenges of using connected vehicles as FC infrastructures along with future research directions.

RESTful Industrial Communication With OPC UA

Representational state transfer (REST) is a wide-spread architecture style for decentralized applications. REST proposes the use of a fixed set of service interfaces to transfer heterogeneous resource representations instead of defining custom interfaces for individual applications. This paper explores the advantages of RESTful architectures, i.e., service-oriented software architectures comprised RESTful services, in industrial settings. These include communication advantages such as reduced communication overhead and the possibility to introduce caching layers, and system design advantages including stable service interfaces across applications and the use of resource-oriented information models in cyber–physical systems. Additionally, a RESTful extension to the open platform communications (OPC) unified architecture (OPC UA) binary protocol is proposed in order to leverage these advantages. It requires only minimal modifications to the existing OPC UA stacks and is fully backward compatible with the standard protocol. Performance benchmarks on industrial hardware show a throughput increase up to a factor of eight for short-lived interactions. This reduction of overhead is especially relevant for the use of OPC UA in the emerging Industrial Internet of Things.

Integrating quality requirements in engineering web service orchestrations

Today’s Web services are considered as one of the leading technologies for implementing components of service-oriented software architectures for desktop, Web or mobile applications. When designing workflows of activities that involve the invocation of these Web Services, we build either orchestrations or choreographies. The engineering of such applications is an emerging research topic with many challenges. Among them, we can stress out the crucial question of how to answer quality requirements in such engineering processes. This paper, presents a method which aims at assisting software architects of Web Service orchestrations in integrating quality requirements in their artifacts. In order to satisfy a quality requirement, this method suggests a list of service-oriented patterns. We base our work on the postulate stating that quality can be implemented through patterns, which can be specified with checkable/processable languages. This method helps architects to reach concrete architecture changes that can be automatically performed on the orchestration in order to apply a pattern, and thus integrate its associated quality. We experimented our method on a set of real-world orchestrations (BPEL processes) to measure the overhead of using it in engineering such service-oriented applications. The obtained results showed that our method brings a significant gain of time.

Architecture and Software Design for a Service Robot in an Elderly-Care Scenario

ABSTRACT Systems for ambient assisted living (AAL) that integrate service robots with sensor networks and user monitoring can help elderly people with their daily activities, allowing them to stay in their homes and live active lives for as long as possible. In this paper, we outline the AAL system currently developed in the European project Robot-Era, and describe the engineering aspects and the service-oriented software architecture of the domestic robot, a service robot with advanced manipulation capabilities. Based on the robot operating system (ROS) middleware, our software integrates a large set of advanced algorithms for navigation, perception, and manipulation. In tests with real end users, the performance and acceptability of the platform are evaluated.

A security framework for developing service-oriented software architectures

The usually heterogeneous and decentralized nature of entities in the service-oriented architecture has paved the ground for the implementation of approaches distributed according to the constantly changing needs of business. Also, as the distribution of entities and processes increases, the need to provide security over software and hardware sources, which have reached the public thanks to an open space as a result of the service-oriented architecture, is felt. Therefore, security modeling at the level of service-oriented architecture can boost system reliability and enhance its stability once applied and employed. This research provides a secure framework through which to develop software based on the service-oriented architecture. The proposed framework has been modeled using the SoaML profile, which has been introduced for modeling service-oriented environments. The framework's security aspects have been tested by the modeling and specification language Alloy, which is based on the first-order logic. Its accuracy has also been well investigated. Tapping into the model-driven development, this framework can provide an answer to existing security challenges for service-oriented architecture software. Copyright © 2015 John Wiley & Sons, Ltd.

Cloud Computing Research Vehicle Traffic Information Service System Based on Network

In vehicle network under the cloud computing environment model of traffic information service system construction as the goal, the use of cloud computing technology and service oriented software architecture is divided into thought, differentiation and security mechanism from the service account, complete vehicle based on cloud computing network traffic information service system of the letter of the architecture design, function design, software structure design. Based on the geographical space cloud services, cloud services based car networking function, constructing high performance, scalable, supporting differentiated information service system. The research results show that: cloud computing car network traffic information service collaborative system can greatly improve the level of intelligent, personalized information service based on traffic, the user required service supply pertinence increased significantly； system can provide traffic information service more safe and reliable for vehicle network users of the service coordination, which helps to guarantee Intelligent Transportation and efficient operation.

Research on Service Reputation Evaluation Method Based on Cloud Model

With the increasingly evident advantages of service-oriented software architecture, Web service received widespread attention, and the numbers of Web Services are increasing constantly. It is more difficult to select high-quality Web service that meets user requirements. Because traditional service reputation evaluation approaches cannot ensure the authenticity and reliability of user ratings, this paper proposes a cloud-based reputation evaluation approach for assessing the history behavior of service consumers, and also takes into account the rating similarity to generate rating quality cloud. With the parameters of cloud model, we can measure the quality level and stability of rankings, which provide additional evidence for trust decision-making. The result of simulating experiments shows that the proposed approach can improve the accuracy of reputation evaluation and the quality of Web service selection, and defend against malicious attacks, so that the interests of service requesters and service providers can be protected.

Security Trade-off Analysis of Service-oriented Software Architecture

This paper presents a qualitative analysis of security aspect of Web-Based applications that utilize Service Oriented Architecture (SOA). The architectural solutions that address security requirements are examined and compared with other quality attributes relevant to web-based systems. More specifically, a trade off analysis based on ATAM performed to show the correlation between security and other system wide qualities related to the successful selection of SOA. The optimal architectural solution should not only meet the security requirements of a web-based system but also meets other QAs such as performance, availability, usability, modifiability, etc.

A Design Method for Management Information System Based SOA

This paper studied the Service-oriented software architecture. Recently service-oriented architecture is a research hot because it is open and flexible. But all people only concern its application in a certain field. Almost no one puts forward a general method for various field systems. Also there are no service-oriented developing software and tools. This paper proposes a service-orientation solution to the management information system based on SOA (Service-oriented architecture). Business process can be designed by interactive interface library. Users can complete the design of system by simply dragging the mouse. For various systems it is an efficient method because business process can be designed by interactive interface.

Using cloud technologies in modern distance learning systems

Modern society with its constant development, gravitation to the processes of globalization requires an increase in the level of automation of all information processes, including in the field of education.Over the past few years we have seen a growing interest of scientists and IT specialists in the Software as a Service model. SaaS should be considered a particular case of the more general service-oriented software architecture, which actually defines that software components act as common services and can be used independently or recombined in other programs.

Towards Enhanced Program Comprehension for Service Oriented Architecture (SOA) Systems

Service Oriented Architecture (SOA) is an emerging paradigm for orchestrating software components to build new composite applications that enable businesses, government agencies and other organizations to collaborate across institutional boundaries. SOA offers new languages and a variety of software development tools that enable software engineers to configure software as services and to interconnect services with other services independent of differences in operating platform and programming and communicating languages. However, SOA composite applications introduce additional complexity into the construction, deployment and maintenance of software, for the purpose of aggravating the issue of program comprehension, which is at the heart of software maintenance. This article describes the challenges in SOA program comprehension and reports on the results of a two-part case study aimed at identifying information that would help a SOA software maintainer. Analysis of the results indicates a need for higher-level abstractions and visualizations that can enhance conventional text-based search to support SOA program understanding. This paper then reports on several specific abstractions, visualization methods, and the development of an intelligent search tool to enhance comprehension of the relationships and data within a SOA composite application.

Adaptive and personalised body networking

Body networking calls for novel methods and tools for a tight and implicit man machine confluence. One way to achieve this is to make technical systems sensitive and reactive to user personal situation. This paper describes service-oriented software architecture, designed to respond to the user via a biocybernetic loop that transforms changes in user behaviour into services that may be incorporated into a highly personalised user-centric system. These services are used to drive real-time system adaptation tailored to a specific individual in a particular usage context.

SOADL-EH: Service-Oriented Architecture Description Language Supporting Exception Handling

To solve the problem of the construction of service-oriented software architecture with fault tolerant, the paper proposes SOADL-EH, a novel service-oriented software architecture description language supporting exception handling. With the capability of modeling normal SOA and the provision of software architecture elements such as exception handling services, exception handling connectors and exception handling configurations, etc., this language can separate clearly the exception handling logic from the normal business logic of the service-oriented software architecture layer, which makes up the shortage in exception handling capability of the existing Architecture description language.

Grid-Enabled Virtual Organizations for Next-Generation Learning Environments

Nowadays, we are witnesses of a transformation in the e-learning arena. This transformation has different drivers involving all the actors in the learning value chain, from final users to learning institutions through technology providers. All those actors share a common goal: making the learning processes more effective through the information and communication technologies. This is happening through the promotion of a paradigm shift from content-centered to process-centered solutions. In this paper, we present the results from the European Learning Grid Infrastructure project concerning models, processes, and services supported by a service-oriented software architecture for creating dynamic and adaptive virtual organizations for learning using Grid technologies.

Development of Distributed Applications Using Service-Oriented-Architecture

There are a large number of software development methodologies for developing standalone software, little effort is being made into investigating specialized methodologies that target the development of Distributed Applications (DAs) in the era of Internet and Web-based applications. Rather than focusing on business models, developers usually spend considerable effort in implementing connectivity between software components that comprise these applications. Since a large number of competing technologies exist, these solutions face serious technology-migration and design reuse problems. This paper advocates approaching the design activity from a business rather than technological perspective by defining a service-oriented software architecture that satisfies the functional requirements in a particular domain. The paper also suggests identifying existing or new design patterns to capture common business process functionalities and fulfill the non-functional requirements.

Assessing Internal Software Quality Attributes of the Object-Oriented and Service-Oriented Software Development Paradigms: A Comparative Study

Service-Oriented Architecture (SOA) is becoming the dominant approach for developing and organizing distributed enterprise-wide applications. Although the concepts of SOA have been extensively described in the literature and in-dustry, the effects of adopting SOA on software quality are still unclear. The aim of the paper is to analyze how adopt-ing SOA can affect software quality as opposed to the Object-Oriented (OO) paradigm and expose the differential implications of adopting both paradigms on software quality. The paper provides a brief introduction of the architectural differences between the Service-Oriented (SO) and OO paradigms and a description of internal software quality metrics used for the comparison. The effects and differences are exposed by providing a case study architected for both paradigms. The quantitative measure concluded in the paper showed that a software system developed using SOA approach provides higher reusability and lower coupling among software modules, but at the same time higher complexity than those of the OO approach. It was also found that some of the existing OO software quality metrics are inapplicable to SOA software systems. As a consequence, new metrics need to be developed specifically to SOA software systems.