WS-*

When you write a complex mashup with WSO2 Mashup Server which aggregate several external web services, you will definitely need to communicate with secured web services. It is very easy with WSO2 Mashup Server as it does this with service composition. In this article, we will discuss how WSO2 Mashup Server allows you to invoke services secured with advanced security scenarios.

As the number of services and resources grow in an SOA deployment, the task of locating which service resides where is going to become tedious. Wrong or outdated endpoint configurations can lead to application faults, service outages and business revenue losses. WS-Discovery is a standard protocol for publishing and discovering service endpoints in a complex SOA. Using WS-Discovery, systems can automatically discover the services and endpoints they are interested in without any human intervention. In this article, Hiranya Jayathilaka provides a brief introduction to WS-Discovery and how this standard is supported by WSO2 Carbon based products such as WSO2 AS, WSO2 DSS, WSO2 GReg and WSO2 ESB.

WSO2 Carbon Studio immensely simplifies SOA development by providing a complete Eclipse IDE for service/application development, deployment and execution. This article explains Carbon Studio and its benefits.

XACML, shortened for extensible access control markup language, provides a flexible, fine-grained and scalable way of achieving policy-based access control. WSO2 carbon product platform provides a fine-grained access management solution with Policy Based Access Control (PBAC) based on XACML.

This article walks you through a sample scenario on how to build up a solution to control access to a RESTful service with XACML using WSO2 product stack.

In this article, Senaka Fernando, Software Engineer at WSO2, explains about Eventing and Notifications with WSO2 Governance Registry. WSO2 Governance Registry is designed to manage data in a web-friendly and community-enabled manner. Users are given the ability to not only store service descriptions, policies and other service-specific meta information, but also images, text files and office documents.

The design of the WSO2 StockTrader sample application is based on an online stock trading scenario with functionality equivalent to that of the Microsoft .NET Stock Trader sample benchmark application and IBM WebSphere's Trade 6.1 sample benchmark application. WSO2 StockTrader sample application is powered by WSO2 WSF/PHP and WSO2 WSAS. It serves to illustrate interoperability between .NET, PHP and Java in deploying high-performance and scalable service-oriented applications.

Cesare Pautasso, Olaf Zimmermann and Frank Leymann presented a paper at the WWW 2008 conference held in Beijing, detailing a comparison of "RESTful Web Services vs. Big Web Services".

In this interview, recorded at QCon London, Stefan Tilkov talks to Paul Downey, Chief Web Services Architect for BT, about Web services standards, Paul's work in the XML Databinding working group, WS-* vs. REST, and cool stuff BT offers to developers.