An Approach Based on Service Components for Adapting Web-Oriented Applications

2016 ◽  
Vol 11 (1) ◽  
pp. 1-21 ◽  
Author(s):  
Soumia Bendekkoum ◽  
Mahmoud Boufaida ◽  
Lionel Seinturier
Keyword(s):  
Service Oriented Architecture ◽  
Business Services ◽  
Distributed Information ◽  
Execution Phase ◽  
New Business ◽  
Design Paradigm ◽  
Service Oriented ◽  
Composite Services ◽  
Service Components ◽  
Control Service

Service Oriented Architecture is a software design paradigm of choice for building and integrating distributed Information Systems. The greatest challenge of SOA is to make the system more flexible and adaptable to the enterprise and user environment changes. However, services can change constantly. These changes are produced due to adjustment in structure, e.g., changing service signature, integrating new services into existing business services; in behavior e.g., adding new business rules in simple or composite services; and in interaction schema between the services and the clients. This paper presents a solution based on service component concepts for dealing with changes confined to services and clients in SOA-based applications. It uses service components concepts to define adaptable services that facilitate the extension and the customization of existing services in harmony with service users. In addition, it presents an adaptation service-oriented lifecycle scenario to control service changes in the entire service lifecycle ranging from the announcement to the execution phase

Experiences in Building Mobile E-Business Services

2009 ◽  
pp. 275-297
Author(s):  
Ivano De Furio ◽  
Giovanni Frattini ◽  
Luigi Romano
Keyword(s):  
Web Services ◽  
Service Discovery ◽  
New Technologies ◽  
Service Oriented Architecture ◽  
Building Blocks ◽  
Service Description ◽  
Semantic Approach ◽  
Business Services ◽  
Business Agility ◽  
Service Oriented

Organizations in all sectors of business and government are pursuing service-oriented architecture (SOA) initiatives in response to their need for increased business agility. This is particularly true for mobile telecommunications companies. That is why mobile telecom operators need to research new and innovative sources of revenue. Innovation is not an easy task. It requires embracing a new way of doing business, where new technologies are fundamental. SOA architecture and Web services technology are proposed by IT industry as the best solution to create a network of partnership and new services, but despite software producer claims, interoperability issues arise with service composition. Such a problem can be significantly reduced by adopting a semantic approach in service description and service discovery. Our research is focused on new methods and tools for building high personalized, virtual e-business services. A new service provisioning architecture based on Web services has been conceived, taking into account issues related to end-user mobility. The following pages deal with a proposal for creating real localized, personalized virtual environments using Web services and domain ontologies. In particular, to overcome interoperability issues that could arise from a lack of uniformity in service descriptions, we propose a way for controlling and enforcing annotation policies based on a Service Registration Authority. It allows services to be advertised according to guidelines and domain rules. Furthermore, this solution enables enhanced service/component discovery and validation, helping software engineers to build services by composing building blocks and provision/deliver a set of personalized services.

Real Time in Self-Adaptability of Web Services to the Context based on Workflow

2015 ◽  
Vol 6 (1) ◽  
pp. 48-62 ◽  
Author(s):  
Faîçal Felhi ◽  
Jalel Akaichi
Keyword(s):  
Information Systems ◽  
Web Services ◽  
Real Time ◽  
Service Oriented Architecture ◽  
Distributed Information Systems ◽  
Distributed Information ◽  
Service Oriented ◽  
The Subject ◽  
And Performance

Real time impact in many applications is the subject of a recent field of studies in information systems. Web services are a solution for the integration of distributed information systems that are autonomous, heterogeneous and auto adaptable to the context. This impact can resolve many problems in different systems based on Service Oriented Architecture (SOA) and web services. In this paper, the authors are interested in defining an approach to provide the different needs of self-adaptability of SOA to the context based on workflow, define the real time goal in their approach and show the feasibility and performance evaluation of their approach in an ambulance trajectory case study.

Behavioral Attestation for Web Services Based Business Processes

2010 ◽  
Vol 7 (3) ◽  
pp. 52-72 ◽  
Author(s):  
Masoom Alam ◽  
Mohammad Nauman ◽  
Xinwen Zhang ◽  
Tamleek Ali ◽  
Patrick C. K. Hung ◽  
...  
Keyword(s):  
Business Process ◽  
Trust Management ◽  
Business Processes ◽  
Service Oriented Architecture ◽  
Trusted Computing ◽  
Business Services ◽  
Dynamic Composition ◽  
Open Set ◽  
Service Oriented ◽  
Root Of Trust

Service Oriented Architecture (SOA) is an architectural paradigm that enables dynamic composition of heterogeneous, independent, multi-vendor business services. A prerequisite for such inter-organizational workflows is the establishment of trustworthiness, which is mostly achieved through non-technical measures, such as legislation, and/or social consent that businesses or organizations pledge themselves to adhere. A business process can only be trustworthy if the behavior of all services in it is trustworthy. Trusted Computing Group (TCG) has defined an open set of specifications for the establishment of trustworthiness through a hardware root-of-trust. This paper has three objectives: firstly, the behavior of individual services in a business process is formally specified. Secondly, to overcome the inherent weaknesses of trust management through software alone, a hardware root of-trust devised by the TCG, is used for the measurement of the behavior of individual services in a business process. Finally, a verification mechanism is detailed through which the trustworthiness of a business process can be verified.

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.

Service-Oriented Architecture for Migrating Legacy Home Appliances to Home Network System

2010 ◽  
pp. 422-441
Author(s):  
Masahide Nakamura ◽  
Hiroshi Igaki ◽  
Akihiro Tanaka ◽  
Haruaki Tamada ◽  
Ken-ichi Matsumoto
Keyword(s):  
Web Services ◽  
Service Oriented Architecture ◽  
Integrated Services ◽  
Home Network ◽  
Network System ◽  
Practical Applications ◽  
Home Appliances ◽  
Distributed Components ◽  
Service Oriented ◽  
Service Components

This chapter presents a practical framework that adapts the conventional home electric appliances with the infrared remote controls (legacy appliances) to the emerging home network system (HNS). The proposed method extensively uses the concept of service-oriented architecture to improve programmatic interoperability among multi-vendor appliances. The authors first prepare APIs that assist a PC to send infrared signals to the appliances. Then the APIs are aggregated within self-contained service components, so that each of the components achieves a logical feature independent of device/vendor-specific operations. The service components are finally exhibited to the HNS as Web services. As a result, the legacy appliances can be used as distributed components with open interfaces. To demonstrate the effectiveness, the authors implement an actual HNS and integrated services with multi-vendor legacy appliances. The authors also show practical applications implemented on the developed HNS.

Service Identification and Specification with SoaML

2012 ◽  
pp. 102-125 ◽  
Author(s):  
Michael Gebhart
Keyword(s):  
Business Processes ◽  
Service Oriented Architecture ◽  
Cloud Services ◽  
Legacy Systems ◽  
Model Driven ◽  
Service Identification ◽  
Service Oriented ◽  
Service Components ◽  
Business Process Execution ◽  
Architecture Modeling

This chapter focuses on the identification and specification of services based on prior modeled business processes and legacy systems. The resulting service interfaces and service components formalized by using the Service oriented architecture Modeling Language (SoaML) describe the integration of legacy systems into a service-oriented application landscape. The legacy systems provide services for integration purposes and represent the implementations of service components. Additionally, the resulting architecture allows functionality of legacy systems to be replaced with functionality provided by external cloud services. According to model-driven development concepts, the formalized service interfaces and service components as part of the service designs can be used to automatically derive service interface descriptions using the Web Services Description Language (WSDL). These descriptions enable the technical integration of legacy systems. If necessary, service implementations based on the Service Component Architecture (SCA) and the Business Process Execution Language (BPEL) can be generated.

Behavioral Attestation for Web Services Based Business Processes

2012 ◽  
pp. 308-329
Author(s):  
Masoom Alam ◽  
Mohammad Nauman ◽  
Xinwen Zhang ◽  
Tamleek Ali ◽  
Patrick Hung ◽  
...  
Keyword(s):  
Business Process ◽  
Trust Management ◽  
Business Processes ◽  
Service Oriented Architecture ◽  
Trusted Computing ◽  
Business Services ◽  
Dynamic Composition ◽  
Open Set ◽  
Service Oriented ◽  
Root Of Trust

Service Oriented Architecture (SOA) is an architectural paradigm that enables dynamic composition of heterogeneous, independent, multi-vendor business services. A prerequisite for such inter-organizational workflows is the establishment of trustworthiness, which is mostly achieved through non-technical measures, such as legislation, and/or social consent that businesses or organizations pledge themselves to adhere. A business process can only be trustworthy if the behavior of all services in it is trustworthy. Trusted Computing Group (TCG) has defined an open set of specifications for the establishment of trustworthiness through a hardware root-of-trust. This paper has three objectives: firstly, the behavior of individual services in a business process is formally specified. Secondly, to overcome the inherent weaknesses of trust management through software alone, a hardware root of-trust devised by the TCG, is used for the measurement of the behavior of individual services in a business process. Finally, a verification mechanism is detailed through which the trustworthiness of a business process can be verified.

Research on Service Model Combination Method Based on Colored Petri Net

2014 ◽  
Vol 981 ◽  
pp. 183-186
Author(s):  
Guang Yi Tang ◽  
Deng Ju Yao ◽  
Li Jie Cui
Keyword(s):  
Service Composition ◽  
Service Oriented Architecture ◽  
Rapid Development ◽  
Logical Structure ◽  
Combination Method ◽  
Model Combination ◽  
Model Driven ◽  
Advantages And Disadvantages ◽  
Service Oriented ◽  
Composite Services

Model-driven architecture and service-oriented architecture are popular software development methods at the present, these two methods have their own advantages and disadvantages, the proposed SOA-based Model-driven Rapid Development Architecture by combining these two methods, Using colored Petri nets’ tools to study service composition methods specifically, and described five basic logical structure of service composition through formal methods, then gave out the construction method of composite services, finally, verified the effectiveness and safety of the service composition method through the modeling.

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