Design of a Model to Create the Web Services using Service-Oriented Development (original) (raw)
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2011
Service oriented architecture (SOA) is an Evolutionary distributed computing from the design hypothesis based request/response for synchronous and asynchronous applications. For an application, business logic or private function became modular and presented as services for consumer/client application. These services have free connection that service interface is independent implementation. For success in business, organizations require information within the organization and Meta information. However, the existence of huge information repositories created by traditional applications prevents information flow between the external and internal parts. SOA is an approach that replaces these huge sources by loose coupling services and satisfies the required information flow and finally increases speed in these organizations.In this paper, first we study the fundamentals of SOA and then describe web services application in software engineering. In addition, we show that web services can b...
Utilization of Web Services for Service Oriented Architecture
Journal of Global Research in Computer Science, 2010
Rapid evolution of software architectures has become nowadays trend, in which distributed processing has proven highly efficient. Multiple architectures for distributed processing are available based on object oriented and component oriented concepts having their own advantages and limitations. The main aspect of developing the consistent architectural framework is to reduce the development cost of IT solutions and to integrate the business partners and customers with various capabilities with a clear vision in a easily manageable, quick and reusable fashion. Service Oriented Architecture is architecture, which is independent from any certain technology. The opening section of the paper highlights limitations of current software architectures as well as it focuses on need of Service Oriented Architecture by emphasizing various architectural aspects including role of service. The second section presents the characteristics of Web Services with their advantages. It also shows that how Web Services fulfill the requirement of frequently changing needs of business industries by implementing Service Oriented Architecture. The last section of the paper presents the application of Web Services in implementing Service Oriented Architecture. A prototype example of Web Service is developed to show the efficiency of the proposed approach.
A Development Methodology for Web Service Applications
In the last years, a number of approaches have been devised for the development and deployment of web services. These approaches range from just the proposal of new languages for web service description to the combination of techniques to support parts of the development cycle of this kind of software. Despite these efforts, no standard, consensual methodology has emerged for encompassing the whole development of web services. Successful software development depends mainly on an intelligent combination of project management and technology that serve for addressing the scope of the project, its quality requirements, time to market and budget. Service based applications depend on these dimensions as well as the inclusion of complex components such as autonomous services. The web service approach makes it possible to develop applications from existing services, avoiding building systems from scratch, but developers need to rely on the availability and compatible evolution of their component services. This paper presents a methodology for designing reliable applications built by coordinating web services. The methodology relies on the notion of contract. The methodology proposed here is based on two guidelines: The verification of contracts by an execution engine and the definition of a number of activities for the development of service compositions.
Basic Components of Web Services Architecture: A Survey
2020
Service provided by one electronic device to the other electronic device or devices is generally called as a web service. It may be a block of code that can be remotely accessed and utilized. In the present IT industry web services are playing a vital role in application development by providing a facility of using the existing modules to make up an application without coding from the scratch. This improves the productivity and reduces the overall project development cost and time. This paper provides the basic information of the components that supports the usage of web service along with the web service architecture. The components that are required for the web service architecture such as SOAP: simple object access protocol: used for establishing connection between components, UDDI (Universal Description, Discovery, and Integration):a registry that stores all the web services and WSDL: web service description language.
Web Service Technologies, Principles, Architectures, and Standards
The development and the adoption of Web services can, to a large extent, traced back to the same driving factors that have led to the development of the Service-oriented approach and Service-Oriented Architecture (SOA). From an ICT point of view, the main vision has been to exploit methods, tools and techniques enabling businesses to build complex and flexible business processes.
Applying a Web Engineering Method to Design Web Services
Lecture Notes in Computer Science, 2005
Probably one of the most difficult tasks in the development of a Service Oriented Architecture (SOA) is how to obtain well designed Web Services. Some Web Engineering methods provide support to introduce Web services in the software development process but do not give support to the systematic design and implementation of them. In this work, we present an extension of a Web Engineering method (called OOWS) to provide a methodological guide for designing Web Services. This allows identifying and designing the operations and arguments of Web Services following a modeldriven approach, taking the OOWS conceptual models as a source. To document our approach, we apply our ideas to the design of the Amazon Web Service and compare our proposal with the solution provided by Amazon.
Web Services Research Challenges, Limitations and Opportunities
2008
Service Oriented Architecture (SOA) is an architecture style where software components that provide a piece of functionality communicate with each other via message they exchange. Within SOA these pieces are called services. Nowadays, the technology platform most associated with the realization of SOA is Web Services. Web Services have received much interest due to their ability to transcend programming language, operating system, network communication protocol, and data representation dependencies and issues.
Web Services Design From Business Requirements
Web services have received a lot of attention from both researchers and the business IT sector. Most of web service research has been devoted to the issues of standards and supporting technologies. However, despite the considerable volume of research output, the actual application of web services for real business purposes has taken place much more slowly than expected: the number of business web-service-based applications in use is quite low. One of the main reasons for this slow take-up is the lack of research on designing web service applications from a business requirement perspective. Starting from the functional requirements (in terms of use cases), in this paper we propose a systematic method to specify the web service application that is designed to satisfy the functional requirements. The specification unambiguously shows how various parties, who are involved in the application, communicate with each other. Thus, the specifications clearly identify new web services to be built and how the new and existing web services can be composed to provide the required functional behavior. In addition, we also provide a systematic method to validate the specification through prototyping. The specification (which is platform-independent) and the prototype (which is in Java)
A Model Driven Approach to Design Web Services in a Web Engineering Method
Caise, 2005
Probably one of the most difficult tasks in the development of a Service Oriented Architecture (SOA) is how to obtain well designed Web Services. In this work, we present an extension of a web engineering method (OOWS) to provide a methodological guide that allow us to identify well designed Web services in a SOA from the OOWS conceptual model.
Service Oriented Architecture for Web Application Development
World Wide Web applications are full-fledged, complex software systems. Therefore, the development of Web applications requires a methodologically sound engineering approach, called Web Engineering, should have an associated architecture that takes into account the special features and needs for the development of Web Applications. Service-Oriented Architecture (SOA), an Architecture that describes an entity (e.g., application or enterprise) as a set of interdependent services. SOA provides for reuse of existing services and the rapid deployment of new business capabilities based on existing assets. It is a representation of a system where the functionality is provided as a set of services called by other parts of the system. In this paper, we have presented SOA at the architecture level for a web application development. SOA facilitate the manageable growth of large scale enterprise systems, to enhance use of services, also facilitates Internet-scale provisioning by reducing the costs in organization. SOA provides a simple scalable paradigm for organizing large networks of systems that require interoperability. Web application developer using SOA principles is better equipped, evolvable and manageable. The infrastructure SOA is more agile and responsive than one built on an exponential number of pairwise interfaces. Hence, SOA provides a solid foundation for business agility and adaptability.