Enterprise application integration knew a
short period of popularity, but it was soon clear that there was
the need for a strategic, long-term solution that would embrace
different technologies. Again, you might have heard this story
before!
While all those forces were building up pressure, part of the
industry was trying to exploit the emerging ubiquity of the
markup languages, such as HTML and XML, to devise a way to
easily communicate across platform boundaries. Studying the
universal success of HTML as the language of the Web, people
realized that a large part of that success was due to its minimal
requirements and resilience to errors and interpretations. As a
result, in 1998 the ?¬?rst version of the Simple Object Access
Protocol (SOAP) speci?¬?cation emerged. It was a very rough cut
of what we know today; however, it de?¬?ned the core of many
key concepts still valid in the current vision. The speci?¬?cation
de?¬?ned how to project in-memory data types to XML format, a
platform-neutral representation that can be understood without
knowing anything about the technology that originated the data.
It also de?¬?ned a rough protocol for message exchange, again
abstracting away the need to rely on a speci?¬?c network transport
protocol.
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