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Abstract
Problem statement: Service Oriented Architecture (SOA) defines how to integrate widely disparate applications for a world that is Web based and uses multiple implementation platforms. Using (SOA) one can build durable e-learning contents, regardless of changes or evolutions in technology. This means that new content should be added to existing content without costly redesign, reconfiguration, or recoding. Approach: In this study an e-Learning management system with Web services oriented framework was proposed. The system will be an open source application with client-scripting facility. It also supports the cross browser and it is fully integrated with different databases; MS SQL Server, MS Access, Oracle and LDAP. Results: The key values of Interoperability, durability, compatibility, manageability, dynamic reusability and accessibility in the proposed architecture enhance the future e-Learning systems to communicate more efficiently and share data more easily. Conclusion/Recommendations: Web services architecture will provide a standard based platform for Service-Oriented Computing. It defines itself as a set of specifications that support an open XML-based platform for description, discovery, and interoperability of distributed, heterogeneous applications as services.
Highlights
The Service-based architectures are layered on the top of standard transfer protocols for transmitting messages that currently, the most common ones are the XML-based specification Simple Object Access Protocol (SOAP), Universal Description, Discovery and Integration (UDDI) and Web Service Description Language (WSDL) (Booth et al, 2003; Kashfi and Razzazi, 2006)
Service Oriented Architecture (SOA): In the learning system, the development of dynamic contents is transformed from using normal HTML to XML
Web services provide a better alternative as services are loosely coupled and can be subscribed anytime any place
Summary
Service-based architectures take legacy application functionality and expose it to the Internet in a reliable, highly available, scalable, flexible, manageable and secure manner, easy and reliable internet-based method to create and access learning. The initial version of the SCORM was centered on Web-based learning content and was intended to enable the following: SCORM content must be in HTML form-viewable within a standard web browser This does not limit developers and designers to text or even text and images. The Service-based architectures are layered on the top of standard transfer protocols for transmitting messages that currently, the most common ones are the XML-based specification Simple Object Access Protocol (SOAP), UDDI (Universal Description, Discovery and Integration) and Web Service Description Language (WSDL) (Booth et al, 2003; Kashfi and Razzazi, 2006). Web services architecture aims to provide a standard based platform for Service-Oriented Computing It defines itself as a set of specifications that support an open XML-based platform for description, discovery and interoperability of distributed, heterogeneous applications as services (Tai et al, 2004). The service registry is the dynamic components library that will contain all services in our system
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