An Evaluation Framework for Component-Based and Service-Oriented System Development Methodologies

2011 ◽  
pp. 45-69 ◽  
Author(s):  
Zoran Stojanovic ◽  
Ajantha Dahanayake ◽  
Henk Sol
Keyword(s):  
Service Oriented Architecture ◽  
System Development ◽  
Evaluation Framework ◽  
Distributed Information ◽  
It Alignment ◽  
Loosely Coupled ◽  
Service Oriented ◽  
Business Objects ◽  
System Development Methodologies ◽  
Cbd Method

Components-Based Development (CBD) and Web Services (WS) nowadays are prominent paradigms for implementing and deploying advanced distributed information systems. They have been proposed as the ways to support effective business/IT alignment and produce high quality and flexible software solutions that fulfill business goals within short time-to-market. However, current achievements in these areas at the level of methodology are much behind the technology ones. CBD methods proposed so far lack a comprehensive support for component and service concepts throughout the development process. By treating components as packages of implementation artifacts during software deployment or as larger-grained business objects during analysis and design, these methods are not well equipped for modeling loosely coupled coarse-grained components that offer business meaningful services organized in a Service-Oriented Architecture (SOA). This chapter presents an evaluation framework that highlights the extent to which a particular method is component-based and service-oriented. The CBD method sample is selected and evaluated using the framework’s concepts and requirements. Based on the evaluation, the method improvements are proposed in order to provide consistent, systematic, and integrated CBD and WS methodology support throughout the lifecycle.

Methodology Evaluation Framework for Component-Based System Development

2011 ◽  
pp. 213-245
Author(s):  
Ajantha Dahanayake ◽  
Henk Sol ◽  
Zoran Stojanovic
Keyword(s):  
Information Systems ◽  
System Development ◽  
Evaluation Framework ◽  
Distributed Information Systems ◽  
Distributed Information ◽  
Full Support ◽  
Component Based Development ◽  
Cbd Method ◽  
Tools And Techniques ◽  
Effective Component

Components are already prominent in the implementation and deployment of advanced distributed information systems. Part and parcel of this development are the effective Component Based Development (CBD) methodology encompassing methods, tools, and techniques that effectively target the existing component based technology. Current CBD methodologies lack a comprehensive component based concept structure. They handle components mainly at the implementation and deployment phases still, which are heavily influenced by UML notations. In this paper, a presentation is made of an evaluation framework which highlights the extent to which a methodology is component-oriented. Current CBD methods and approaches do not provide full support for various component concepts. Therefore, a CBD method sample was evaluated using the framework’s concepts and requirements. CBD method improvements are proposed based on the evaluation. The improved approach suggests the use of the standard RM-ODP as an underlying framework, to provide consistent, systematic, and integrated CBD methodology engineering support throughout the lifecycle.

Design and Implementation of Network Management Architecture for Wireless Sensor Networks

2012 ◽  
Vol 433-440 ◽  
pp. 3895-3899 ◽  
Author(s):  
Ray I Chang ◽  
Chi Cheng Chuang
Keyword(s):  
Web Services ◽  
Network Management ◽  
Service Oriented Architecture ◽  
Wireless Sensor ◽  
Memory Space ◽  
Loosely Coupled ◽  
Sensor Platforms ◽  
Management Architecture ◽  
Service Oriented ◽  
Network Management Architecture

Traditional NM (Network Management) techniques can not be applied on WSN (Wireless Sensor Network) due to its features of low computing ability, tiny memory space, and limited energy. A new NMA (Network Management Architecture) for WSN is needed. In this paper, we design a loosely coupled NMA of WSN based on SOA (Service-Oriented Architecture), and have well defined NM interfaces. Finally, we develop a SOA platform for WSN operations according to the NMA. Based on SOA platform, users can compose and use various NM Web Services by internet depending on their requirements. Heavy tasks which need a great deal of computing resources and storage are executed on the SOA platform. Thus, energy consumption and node computation can be decreased. Moreover, external applications use Web Services to integrate SOA platform for WSN. It lowers the difficulty in integrating different sensor platforms and heterogeneous devices.

A Service-Oriented Component Modeling Approach

2011 ◽  
pp. 300-322
Author(s):  
Zoran Stojanovic ◽  
Ajantha Dahanayake ◽  
Henk Sol
Keyword(s):  
System Architecture ◽  
System Development ◽  
It Alignment ◽  
Modeling Methods ◽  
Modeling Approach ◽  
Component Based Development ◽  
Development Life Cycle ◽  
Service Oriented ◽  
Implementation Level ◽  
Service Managers

Although implementation technology and standards for Component-Based Development (CBD) and Web services are nowadays widely used in enterprise system development, there is a strong need for truly component-oriented modeling methods. CBD methods proposed so far do not provide a necessary support for modeling various component and service concepts throughout a development life cycle. They mainly follow a bottom-up approach by treating components as implementation level artifacts for packaging software code. However, the component can be much more useful if it is treated as a building block of the logical system architecture. This chapter presents a service-oriented component modeling approach focused on the concepts of component and service as the main modeling and design artifacts. The approach provides a paradigm shift from components as objects to components as service managers. The approach is business-driven, flexible, and agile, providing an effective business/IT alignment in a component- and service-oriented manner.

Service-Oriented Computing

2013 ◽  
pp. 1-20 ◽  
Author(s):  
Stéphanie Chollet ◽  
Philippe Lalanda ◽  
Jonathan Bardin
Keyword(s):  
Web Services ◽  
Service Oriented Architecture ◽  
Application Integration ◽  
New Paradigm ◽  
Loosely Coupled ◽  
Service Oriented Computing ◽  
Service Oriented ◽  
Scale Network ◽  
Computing Platforms ◽  
Multiple Domains

The visionary promise of Service-Oriented Computing (SOC) is a world-scale network of loosely coupled services that can be assembled with little effort in agile applications that may span organizations and computing platforms. In practice, services are assembled in a Service-Oriented Architecture (SOA) that provides mechanisms and rules to specify, publish, discover and compose available services. The aim of this chapter is to present the different technologies implementing the new paradigm of SOA: Web Services, UPnP, DPWS, and service-oriented component OSGi and iPOJO. These technologies have been developed and adapted to multiple domains: application integration, pervasive computing and dynamic application integration.

A Framework and Protocols for Service Contract Agreements Based on International Contract Law

2013 ◽  
pp. 216-231
Author(s):  
Michael Parkin ◽  
Dean Kuo ◽  
John Brooke
Keyword(s):  
Service Oriented Architecture ◽  
Contract Law ◽  
Distributed Environment ◽  
Service Usage ◽  
Negotiated Agreements ◽  
Negotiation Protocol ◽  
Loosely Coupled ◽  
Service Oriented ◽  
Geographically Distributed ◽  
Domain Independent

Current protocols to agree to Web/Grid service usage do not have the capability to form negotiated agreements, nor do they take into account the legal requirements of the agreement process. This article presents a framework and a domain-independent negotiation protocol for creating legally binding contracts for service usage in a distributed, asynchronous service-oriented architecture. The negotiation protocol, which builds on a simple agreement protocol to form a multiround “symmetric” negotiation protocol, is based on an internationally recognized contract law convention. By basing our protocol on this convention and taking into account the limitations of an asynchronous messaging environment, we can form contracts between autonomous services across national and juridical boundaries, necessary in a loosely coupled, widely geographically distributed environment such as the Grid.

Service Oriented Architecture Conceptual Landscape PART II

2011 ◽  
pp. 142-163
Author(s):  
Ed Young
Keyword(s):  
Service Oriented Architecture ◽  
Face Lift ◽  
Loosely Coupled ◽  
Heterogeneous Technologies ◽  
Service Oriented ◽  
Open Service

Contemporary architectural approach is for an orchestrated, agnostic, federated enterprise through the adoption of loosely-coupled open Service interfaces. The Service-Oriented Architecture (SOA) paradigm unifies dis­parate, heterogeneous technologies. It resurrects legacy technology silos with a Service ‘face-lift’ while maintaining their autonomy. Somewhat in its infancy as standards and methodologies are evaluated and adopted, the differences between theory and praxis of SOA remain to be fully de­termined, predominately due to the size and complexity of the conundrum it addresses.

Interactive and Iterative Service-Composition-Based Approach to Flexible Information System Development

2011 ◽  
Vol 8 (4) ◽  
pp. 81-107 ◽  
Author(s):  
Qianhui Liang ◽  
Anandhi Bharadwaj ◽  
Bu Sung Lee
Keyword(s):  
Information System ◽  
Web Services ◽  
Web Service ◽  
Service Composition ◽  
Service Oriented Architecture ◽  
System Development ◽  
Hybrid Technique ◽  
Information System Development ◽  
Service Usage ◽  
Loosely Coupled

An emerging class of technologies defined as Service-Oriented Architecture (SOA) has been heralded as the answer for inflexible IT architecture and promises to reduce operational barriers of current IT infrastructures. In SOA, loosely coupled Web services are integrated to provide dynamic digital capabilities within and across enterprise boundaries. Little research exists on development processes of information systems using Web services and against certain development metrics. One way to perform such research is to propose a development approach, identify the metrics, and embed the metrics into the technique of service composition to allow system development with desired characteristics. This paper reports an approach to information system development based on Web services composition and the metrics designed for such approaches. This approach is based on semi-automatic, interactive, and iterative Web service composition -- a hybrid technique based on developing and searching an AND/OR graph for composite services discovery while taking into consideration human judgment for solution selection and validation by interactions in an iterative way. The composition process leverages historical Web service usage data and provides helpful suggestions to the users regarding available component services. The authors propose that the metrics can investigate the characteristics of such development approaches.

Pragmatic-Driven Approach for Service-Oriented Analysis and Design

2011 ◽  
pp. 97-128 ◽  
Author(s):  
Remigijus Gustas
Keyword(s):  
Business Processes ◽  
System Analysis ◽  
Service Providers ◽  
System Development ◽  
Traditional System ◽  
Analysis And Design ◽  
Service Oriented ◽  
System Development Methodologies ◽  
Service State ◽  
Pragmatic Aspects

This chapter presents a pragmatic-driven approach for service-oriented information system analysis and design. Its uniqueness is in exploiting a design foundation for graphical description of the semantic and pragmatic aspects of business processes that is based on the service-oriented principles. Services are viewed as dynamic subsystems. Their outputs depend not only on inputs, but on a service state as well. Intentions of business process experts are represented in terms of a set of pragmatic dependencies, which are driving the overall system engineering process. It is demonstrated how pragmatic aspects are mapped to conceptual representations, which define the semantics of business design. In contrast to the traditional system development methodologies, the main difference of the service-oriented approach is that it integrates the static and dynamic aspects into one type of diagram. Semantics of computation independent models are expressed by graphical specifications of interactions between service providers and service consumers. Semantic integrity control between static and dynamic dependencies of business processes is a one of the major benefits of service-oriented analysis and design process. It is driven by pragmatic descriptions, which are defined in terms of goals, problems and opportunities.

Service-Oriented Architecture

2011 ◽  
pp. 998-1002
Author(s):  
Kwan-Ming Wan ◽  
Pouwan Lei ◽  
Chris Chatwin ◽  
Rupert Young
Keyword(s):  
Web Services ◽  
Service Oriented Architecture ◽  
Core Competencies ◽  
Enterprise Application Integration ◽  
The Internet ◽  
Business Systems ◽  
Loosely Coupled ◽  
Enterprise Application ◽  
Tightly Coupled ◽  
Service Oriented

The established global business environment is under intense pressure from Asian countries such as Korea, China, and India. This forces businesses to concentrate on their core competencies and adopt leaner management structures. The coordination of activities both within companies and with suppliers and customers has become a crucial competitive advantage. At the same time, the Internet has transformed the way in which businesses run. As the Internet becomes a cheap and effective communication channel, businesses are quick to adopt the Web for integrating their systems together and linking them with their suppliers and customers. Current enterprise computing using J2EE (Java 2 Platform, Enterprise Edition) has yielded systems in which the coupling between various components in them are too tight to be effective for ubiquitous B2B (business-to-business) and B2C (business-to-consumer) e-business over the Internet. This approach requires too much agreement and shared context between business systems from different organizations. There is a need to move away from tightly coupled, monolithic systems and toward systems of loosely coupled, dynamically bound components. The emerging technology, Web services, provides the tools to accomplish this integration, but this approach presents many new challenges and problems that must be overcome. In this article, we will discuss the current approaches in enterprise application integration (EAI) and the limitations. There is also a need for service-oriented applications, that is, Web services. Finally, the challenges in implementing Web services are outlined.

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