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Service Oriented Archtecture and its Impact on Automation
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Автор:  san [ 26 серпня 2014, 22:07 ]
Тема повідомлення:  Service Oriented Archtecture and its Impact on Automation

Service Oriented Archtecture and its Impact on Automation
Service oriented architecture (SOA)—everyone seems to be talking about, teaching, selling, or implementing it, but there is also a lot of confusion about what it really is. This article is a guide to understanding what it is, how it works, and how it applies to manufacturing-related applications.
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Цитата:
SOA is not a product or a technology or even an architecture. SOA is a set of principles for integrating software applications in a way that minimizes the complexity and number of interfaces between applications, therefore providing the most modularity for software evolution and support.
The principles of SOA define rules for deciding what software applications should support what functions and the type of information the applications need to exchange. As a result, the potential of SOA-structured systems is that they have cleanly defined interfaces, that the interfaces relate to well-understood business or operational data, and that the applications are focused on well-understood business or operational processes.
Conversely, the downside of SOA is that there are still few SOA-related success stories because many IT organizations are using SOA tools, but not yet implementing the SOA principles. SOA tools include Web services, enterprise service buses, XML gateways, SOAP (simple object access protocol) models, and REST (representational state transfer) models. These tools are the current best methods for application integration. However, just using SOA tools does not mean that systems follow SOA concepts.

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