scholarly journals Robotic Systems of Systems Based on a Decentralized Service-Oriented Architecture

Robotics ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 78
Author(s):  
Lennart Siefke ◽  
Volker Sommer ◽  
Björn Wudka ◽  
Carsten Thomas
Keyword(s):  
Service Oriented Architecture ◽  
Autonomous Systems ◽  
Sensor Data ◽  
Service Oriented Architectures ◽  
Systems Of Systems ◽  
Software Patterns ◽  
Design Time ◽  
Robot Systems ◽  
Service Oriented ◽  
Multi Robot

Multi-robot systems are often static and pre-configured during the design time of their software. Emerging cooperation between unknown robots is still rare and limited. Such cooperation might be basic like sharing sensor data or complex like conjoined motion planning and acting. Robots should be able to detect other robots and their abilities during runtime. When cooperation seems to be possible and beneficial, it should be initiated autonomously. A centralized cloud control shall be avoided. Using software patterns belonging to service-oriented architectures, the robots are able to discover other robots and their abilities during runtime. These abilities are implemented as services and described by their interfaces. Composition of services can be done easily and flexibly. The software patterns originally belonging to cloud computing could be successfully adopted to decentralized multi-robot systems. The developed concept allows autonomous systems to cooperate flexibly and to compose multi-robot systems during runtime.

DESIGN OF DECOUPLED CLINICAL DECISION SUPPORT FOR SERVICE-ORIENTED ARCHITECTURES

2009 ◽  
Vol 19 (02) ◽  
pp. 159-183 ◽  
Author(s):  
JENS WEBER-JAHNKE
Keyword(s):  
Decision Support ◽  
Clinical Decision Support ◽  
Service Oriented Architecture ◽  
Empirical Evaluation ◽  
Cost Savings ◽  
Clinical Decision ◽  
Service Oriented Architectures ◽  
Distributed Services ◽  
Service Oriented ◽  
Computer Based

Computer-based clinical decision support (CDS) contributes to cost savings, increased patient safety and quality of medical care. Most existing CDS systems are stand-alone products (first generation) or part of complete electronic medical record packages (second generation). Experience shows that creating and maintaining CDS systems is expensive and requires effort that should be economized by sharing them among multiple users. It makes good economic sense to share CDS service installations among a larger set of client systems. The paradigm of a service-oriented architecture (SOA) embraces this idea of sharing distributed services. Some attempts making CDS services available to distributed health information systems exist. However, these approaches have not gained much adoption. We argue that they do not provide a sufficient level of decoupling between client and CDS in order to be broadly reusable in SOAs. In this paper, we present a new CDS service component called EGADSS, which has been designed and implemented with the declared objective to minimize the coupling between client and CDS server. We present our key design decisions, which are guided by empirical research in SOA development. We evaluate our result theoretically by measuring the level of decoupling achieved compared to existing CDS approaches. Furthermore, we report on an empirical evaluation of the resulting design, integrating the EGADSS service with an example client system.

Structuring SOA Governance

2012 ◽  
pp. 56-73
Author(s):  
Michael Niemann ◽  
André Miede ◽  
Wolfgang Johannsen ◽  
Nicolas Repp ◽  
Ralf Steinmetz
Keyword(s):  
Service Oriented Architecture ◽  
Holistic Approach ◽  
Generic Model ◽  
Legal Regulations ◽  
It Infrastructure ◽  
Market Conditions ◽  
Service Oriented Architectures ◽  
It Systems ◽  
Service Oriented

Companies’ IT Systems are confronted with constantly changing market conditions, new competitive threats and a growing number of legal regulations. The service-oriented architecture (SOA) paradigm provides a promising way to address these challenges at the level of a company’s IT infrastructure. These challenges, as well as the management of the newly introduced complexity and heterogeneity, are targeted by SOA Governance approaches. In recent years, a number of concrete frameworks for SOA Governance addressing these issues have been proposed. There is no holistic approach considering all proposed elements, consolidating them in order to form a universally applicable model. In this contribution, we motivate SOA Governance, investigate and compare different approaches, identify common concepts, and derive a generic model for governance of Service-oriented Architectures.

Semi-Automated Lifecycles for Eliciting Requirements for Service-Oriented Environments

2013 ◽  
pp. 22-34
Author(s):  
M. Brian Blake
Keyword(s):  
Software Engineering ◽  
Requirements Engineering ◽  
Service Oriented Architecture ◽  
Future Application ◽  
Service Oriented Architectures ◽  
Requirements Specifications ◽  
Business Information ◽  
Service Oriented ◽  
Enterprise Modernization ◽  
Development Applications

Service-based tools are beginning to mature, but there is a cognitive gap between the understanding of what currently exists within an organization and how to use that knowledge in planning an overall enterprise modernization effort that realizes a service-oriented architecture. Traditional and contemporary software engineering lifecycles use incremental approaches to extract business information from stakeholders in developing features and constraints in a future application. In traditional environments, this information is captured as requirements specifications, use cases, or storyboards. Here, we address the evolution of traditional software engineering approaches to support the conceptualization of abstract services that overlap multiple organizations. Traditional software engineering lifecycles must be enhanced with emerging processes related to the development applications for service-oriented environments. The chapter discusses state-of-the-art approaches that elicit information about the requirements for service-oriented architectures. These approaches tend to leverage existing requirements engineering approaches to suggest aggregate service-based capabilities that might be most effective for a particular environment.

Service-Oriented Architectures for Pervasive Computing

2010 ◽  
pp. 147-174 ◽  
Author(s):  
Elias S. Manolakos ◽  
Demetris G. Galatopoullos
Keyword(s):  
Pervasive Computing ◽  
Service Oriented Architecture ◽  
Future Research ◽  
Open Problems ◽  
Efficient Manner ◽  
Service Oriented Architectures ◽  
Software Applications ◽  
Service Oriented ◽  
User Tasks ◽  
The Many

The vision of pervasive computing is to create and manage computational spaces where large numbers of heterogeneous devices collaborate transparently to serve the user tasks all the time, anywhere. The original utility of a computer is now changing from a stand-alone tool that runs software applications to an environment-aware, context-aware tool that can enhance the user experience by executing services and carrying out his/her tasks in an efficient manner. However, the heterogeneity of devices and the user’s mobility are among the many issues that make developing pervasive computing applications a very challenging task. A solution to the programmability of pervasive spaces is adopting the service-oriented architecture (SOA) paradigm. In the SOA model, device capabilities are exposed as software services thus providing the programmer with a convenient abstraction level that can help to deal with the dynamicity of pervasive spaces. In this chapter the authors review the state of the art in SOA-based pervasive computing, identify existing open problems, and contribute ideas for future research.

Event-Driven Service-Oriented Architectures for E-Business

2010 ◽  
pp. 952-962
Author(s):  
Olga Levina ◽  
Vladimir Stantchev
Keyword(s):  
Distributed System ◽  
Enterprise Architecture ◽  
Business Processes ◽  
Service Oriented Architecture ◽  
Reference Architecture ◽  
Service Oriented Architectures ◽  
Application Systems ◽  
Event Driven ◽  
Service Oriented ◽  
Definition Of

E-Business research and practice can be situated on following multiple levels: applications, technological issues, support and implementation (Ngai and Wat 2002). Here we consider technological components for realizing business processes and discuss their foundation architecture for technological enabling. The article provides an introduction to the terms, techniques and realization issues for eventdriven and service-oriented architectures. We begin with a definition of terms and propose a reference architecture for an event-driven service-oriented architecture (EDSOA). Possible applications in the area of E-Business and solution guidelines are considered in the second part of the article. Service-oriented Architectures (SOA) have gained momentum since their introduction in the last years. Seen as an approach to integrate heterogeneous applications within an enterprise architecture they are also used to design flexible and adaptable business processes. An SOA is designed as a distributed system architecture providing a good integration possibility of already existing application systems. Furthermore, SOA is mostly suitable for complex and large system landscapes.

Design of Quality Aspects in Service Oriented Architecture through Service Level Agreements

2011 ◽  
pp. 1-21
Author(s):  
Marco Massarelli ◽  
Claudia Raibulet ◽  
Daniele Cammareri ◽  
Nicolò Perino
Keyword(s):  
Service Oriented Architecture ◽  
Service Level ◽  
Application Domain ◽  
Service Level Agreements ◽  
Actual Case ◽  
Service Oriented Architectures ◽  
Quality Aspects ◽  
Service Oriented

This chapter gives a solution to design Service Oriented Architectures which defines and manages Service Level Agreements to enforce Quality of Services and achieves adaptivity at runtime. The validation of this proposed approach is performed through an actual case study in the context of the multimedia application domain.

scholarly journals Implementation of a Service-Oriented Architecture for Applications in Physical Rehabilitation

2017 ◽  
Vol 26 (46) ◽  
Author(s):  
John Alexander Camacho ◽  
Cristian David Chamorro ◽  
John Alexander Sanabria ◽  
Nayiver Gladys Caicedo ◽  
José Isidro García
Keyword(s):  
Information And Communication Technologies ◽  
Service Oriented Architecture ◽  
Special Functions ◽  
Communication Technologies ◽  
Physical Rehabilitation ◽  
Structural Flexibility ◽  
Service Oriented Architectures ◽  
Information And Communication ◽  
Service Oriented ◽  
Easy Integration

Currently, the interest in service-oriented architectures (SOA) has risen due to their structural flexibility, which allows to obtain features such as scalability, fault tolerance, low coupling, and easy integration, among others. In this context, this article presents the implementation of a SOA for tele-operated physical rehabilitation applications; this SOA ensures an effective orchestration of services, adding special functions, such as synchronous tele-operation of machines for physical rehabilitation, in such a way that it can be adapted and implemented by using information and communication technologies (ICT). The implementation of the architecture was validated by means of a test that allowed to analyze the behavior of the web services defined for the application.

scholarly journals Model-based resource analysis and synthesis of service-oriented automotive software architectures

2021 ◽  
Author(s):  
Stefan Kugele ◽  
Philipp Obergfell ◽  
Eric Sax
Keyword(s):  
Design Space Exploration ◽  
Service Oriented Architecture ◽  
Implementation Process ◽  
Development Stage ◽  
Software Architectures ◽  
Service Oriented Architectures ◽  
Automotive Software ◽  
Analysis And Synthesis ◽  
Service Oriented ◽  
Run Time

Abstract Context Automotive software architectures describe distributed functionality by an interaction of software components. One drawback of today’s architectures is their strong integration into the onboard communication network based on predefined dependencies at design time. The idea is to reduce this rigid integration and technological dependencies. To this end, service-oriented architecture offers a suitable methodology since network communication is dynamically established at run-time. Aim We target to provide a methodology for analysing hardware resources and synthesising automotive service-oriented architectures based on platform-independent service models. Subsequently, we focus on transforming these models into a platform-specific architecture realisation process following AUTOSAR Adaptive. Approach For the platform-independent part, we apply the concepts of design space exploration and simulation to analyse and synthesise deployment configurations, i. e., mapping services to hardware resources at an early development stage. We refine these configurations to AUTOSAR Adaptive software architecture models representing the necessary input for a subsequent implementation process for the platform-specific part. Result We present deployment configurations that are optimal for the usage of a given set of computing resources currently under consideration for our next generation of E/E architecture. We also provide simulation results that demonstrate the ability of these configurations to meet the run time requirements. Both results helped us to decide whether a particular configuration can be implemented. As a possible software toolchain for this purpose, we finally provide a prototype. Conclusion The use of models and their analysis are proper means to get there, but the quality and speed of development must also be considered.

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