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jcl wrote: Hi,thank you for this tutorial I'm interested on the first way to intregate Spring and EJB3. I have tried it in a example project buy it doesn't run. I'm searching since many time a solution,but nothing. I have posted on Spring forum,but no one seems can help me. I appreciate if you can help me.Thank you Antonio
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SOA, WOA and Cloud Computing: The New Frontier for Data Services
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Everyone wants to lower their capital expenditures and increase operational efficiency - it's a sign of the times. The economy of the past 12 - 18 months has forced all organizations to do more with less and become more efficient. While everyone can identify with the request to do more with less, th...
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Best Practices for SOA: Building a Data Services Layer
Choosing best-of-breed data access middleware is an important enabler of SOA

These days nearly every sizable organization has either implemented some form of SOA or has it on their roadmap. They quickly find that SOA efforts tend to expand like spider webs, eventually touching every corner of IT as well as the business itself. Due to the vital role that data plays both in business and systems operations, database architects, information specialists, data integration experts, and anyone responsible for data persistence in an organization are increasingly being called on to contribute to their organization’s SOA initiatives – whether or not this was intended at the onset.

Information locked away inside monolithic application silos has proven to be a stubborn obstacle to the flexibility that modern businesses require. If businesses are to have any hope of building flexible services that offer the performance and agility needed to succeed with SOA, those businesses must solve the technical challenge of accessing information – that is, data – across application platforms and their organization as a whole.

System architects who fail to devote sufficient planning to data access issues and attempt to layer a service-oriented approach on top of their existing data sources often find that providing flexibility above the service abstraction requires complex changes at the data source level, impeding the agility they sought and thereby undermining one of the core rationales for implementing SOAs in the first place.

In traditional distributed architectures, developers write a data access code, which they might then seek to make reusable. However, if a problem exists with this data access code, that problem essentially becomes propagated with adverse impact on any application that requires access to that particular data source. Furthermore, whenever anything changes — including the underlying database, the data model, or the version of the coding environment being used — the data access code must be updated everywhere it appears.

Considering that data sources can range from all kinds of structured data stores (such as relational databases, mainframe data sources, and enterprise applications) to semi- or unstructured data such as Web pages, PDF documents, office application files, XML documents, e-mail, media content, print streams, or a wide variety of content and data feeds and formats, it becomes clear that accessing and processing all these disparate types of information from so many disparate sources via the tightly coupled approach of traditional distributed data access would constitute a technical support challenge of monumental proportions.

About John Goodson
As vice-president of product operations, John Goodson leads the product strategy, direction, and development efforts at DataDirect Technologies. For more than 10 years, he has worked closely with Sun and Microsoft on the development and evolution of database connectivity standards including J2EE, JDBC, .NET, ODBC, and ADO. His active memberships in various standards committees, including the JDBC Expert Group, have helped Goodson's team develop the most
technically advanced data connectivity technologies. He holds a BS in computer science from Virginia Tech.

About Jason Bloomberg
Jason Bloomberg is Managing Partner and Senior Analyst at Enterprise Architecture advisory firm ZapThink LLC. He is a thought leader in the areas of Enterprise Architecture and Service-Oriented Architecture, and helps organizations around the world better leverage their IT resources to meet changing business needs. He is a frequent speaker, prolific writer, and pundit, and he is the primary creator and instructor for the popular Licensed ZapThink Architect course, as well as ZapThink's new SOA & Cloud Governance course. His most recent book, Service Orient or Be Doomed! How Service Orientation Will Change Your Business (John Wiley & Sons, 2006, coauthored with Ron Schmelzer), is recognized as the leading business book on Service Orientation.

Mr. Bloomberg has a diverse background in eBusiness technology management and industry analysis, including serving as a senior analyst in IDC’s eBusiness Advisory group, as well as holding eBusiness management positions at USWeb/CKS (later marchFIRST) and WaveBend Solutions (now Hitachi Consulting). He also co-authored the books XML and Web Services Unleashed (SAMS Publishing, 2002), and Web Page Scripting Techniques (Hayden Books, 1996).

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