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Difference between Web Services and an API

Rajkumar Masanaiyan
Greenhorn

Joined: Sep 17, 2011
Posts: 24
I was going through the SOA page in wikipedia and came cross the following snippet. The highlighted text below implies that SOA defines interfaces that are different from API. Can someone explain what API means in this context and provide an example or two?

----snip----
SOA defines how to integrate widely disparate applications for a Web-based environment and uses multiple implementation platforms. Rather than defining an API, SOA defines the interface in terms of protocols and functionality
----snip----

Jesper de Jong
Java Cowboy
Saloon Keeper

Joined: Aug 16, 2005
Posts: 14347
    
  22

I think that in that particular context, with "API" they mean specific interfaces and / or classes as you would have in Java.

The text says that the interface is not defined as a set of Java interfaces and / or classes, but just in the form of a description of protocols and functionality. How these protocols and other functionality is implemented is not described in detail.


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