tag:blogger.com,1999:blog-197177752011-04-21T12:44:10.284-07:00All about Service Oriented Architecture, Security and Identity Management stuff !!!Manh-Kiet Yaphttp://www.blogger.com/profile/06593472507265724096noreply@blogger.comBlogger21100tag:blogger.com,1999:blog-19717775.post-1134257246422952822005-12-10T15:19:00.000-08:002006-01-10T06:23:56.993-08:00<strong><span style="font-size:85%;"><em>Let's start at the beginning : What is SOA ?<br /></em></span><br /></strong><span style="font-size:85%;">The question may sound stupid, but try to answer by yourself to this question, and then ask it around your friends and colleagues : I'm pretty sure that you will not get a formal and unique response to it ... unless they are Dutch (*) ... ;)</span><br /><a href="http://photos1.blogger.com/blogger/5331/1715/1600/soa-arch.3.jpg"></a><br /><a href="http://photos1.blogger.com/blogger/5331/1715/1600/soa-arch.1.jpg"></a><span style="font-size:85%;">From a very high level, we can summarize SOA as an application design architecture which allows to move away from a monolithic/silo-based application model, to a services oriented, highly reuseable, implementation regardless and loosely-coupled based composite-application model. </span><br /><br /><br /><span style="font-size:85%;"></span><img style="margin: 0px auto 10px; display: block; text-align: center;" alt="" src="http://photos1.blogger.com/blogger/5331/1715/400/soa-arch.3.jpg" border="0" /><br /><span style="font-size:85%;">In theory, this sounds idyllic. But if we drill-down a bit further we realized that a lot of areas still need clarification. For example : <em>How to create those "services" ?</em> <em>Should I have to write them again or is there any technique to "wrap" existing modules from my legacy applications to "services" ?</em> <em>How to link and orchestrate those services together ? How to secure efficiently the communication between services ?</em> </span><br /><span style="font-size:85%;"></span><br /><span style="font-size:85%;"><em><strong>Introducing Service Component Architecture (SCA) and Service Data Objects (SDO) </strong></em></span><br /><br /><span style="font-size:85%;"></span><p align="left"><span style="font-size:85%;">Recently, Oracle and other major SOA vendors have released </span><span style="font-size:100%;">2 </span><span style="font-size:85%;">new specifications, Service Component Architecture (SCA) and Service Data Objects (SDO), which aim to :</span></p><ul><li><span style="font-size:85%;">Help developers and architects to build SOA based system in the common way, by reducing the design and development complexity, as well as eliminating dependencies to the middleware where those component are executed.</span></li><li><span style="font-size:85%;">A standard way to represent business data to developers and architects, regardless on how they are physicall accessed.</span></li></ul><p><span style="font-size:85%;">More information can be found at the <a href="http://www.oracle.com/technology/tech/webservices/index.html">Oracle Service-Oriented Architecture Technology Center </a></span><span style="font-size:85%;">within the Oracle Technology Network website (<a href="http://otn.oracle.com">http://otn.oracle.com</a>). </span></p><p><span style="font-size:85%;">In the future, I'll drill down into a specific area about securing and managing web services : Policy Driven Approach to secure SOA environment. So stay tune !</span></p><p><em><span style="font-size:85%;">* SOA in Dutch stands for Seksueel Overdraagbare Aandoeningen, which means Sexually Transmitted Diseases ...</span><br /></em><br /><br /></p><span style="font-size:85%;"></span><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/19717775-113425724642295282?l=mkyap.blogspot.com' alt='' /></div>Manh-Kiet Yaphttp://www.blogger.com/profile/06593472507265724096noreply@blogger.com3tag:blogger.com,1999:blog-19717775.post-1134168980955686602005-12-09T23:55:00.000-08:002005-12-12T15:41:06.763-08:00<span style="font-size:85%;">Hurrah ! After multiple attempts - and a lot of hesitations as well, I finally create my blog.<br />I'll try to keep it up to date with my latest finding around Service Oriented Architecture and Identity Management. I hope you will appreciate it and please feel free to send me your comments to improve the quality of this blog !</span><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/19717775-113416898095568660?l=mkyap.blogspot.com' alt='' /></div>Manh-Kiet Yaphttp://www.blogger.com/profile/06593472507265724096noreply@blogger.com0