Unraveling the Web Services Web: An Introduction to SOAP, WSDL, and UDDI
IEEE Internet Computing
Portal oriented integration in public institutions
AIKED'08 Proceedings of the 7th WSEAS International Conference on Artificial intelligence, knowledge engineering and data bases
The Definitive Guide to SOA: Oracle Service Bus
The Definitive Guide to SOA: Oracle Service Bus
Improving query performance in virtual data warehouses
WSEAS Transactions on Information Science and Applications
Two integration flavors in public institutions
WSEAS Transactions on Information Science and Applications
A practical solution for stock market integration
MCBE'09 Proceedings of the 10th WSEAS international conference on Mathematics and computers in business and economics
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This article is an extended version of a paper presented in the WSEAS MCBE09 conference [10] in which we will present in more detail practical solution for building an integration tier between an online trading platform and two stock exchange markets, in a SOA like architecture. Our solution is constructed using XML, Java and PL/SQL and not third-party costly solutions. This open source approach, even if it is more difficult to develop and implement at first, helps a company to control the solution. The system will not be tied to SOA vendors that are usually keeping their software as secret as possible, demanding that they will develop, an additional costs, all the future developments. We are using XML for communication, not only because of the constraints given by the systems we integrate, but also because it is the natural choice in a SOA like solution. XML it's being used to enable web services and similar, often custom, RPC functionality to allow greater access to data across multiple systems within an organization and allowing the possibility of future systems to be created from collections of such RPC functionality [5, 6].