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    <h2><a href="https://wiki.asterisk.org/wiki/display/TOP/Architecture">Architecture</a></h2>
    <h4>Comment <b>removed</b> by              <a href="https://wiki.asterisk.org/wiki/display/~beagles">Brent Eagles</a>
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        <p>System Integration Layer.  Great description.</p>

<p>System Services Layer.  What would be an example of an interface that's not required or desired in every Asterisk SCF component?  What's an example of a component implementing this interface to map an external tool or service into Asterisk SCF?  Ken's amplification helps a bit, but a specific example would be nice, too.</p>

<p>Domain Specific Services Layer. Great description.</p>

<p>Domain Integration Layer.  Great description.</p>

<p>Domain Services Layer.  An example would improve this section.  Currently, I'm not sure how this layer works, based on the description. I know it's written there, but I'm missing it.</p>

<p>Technology Adapter Layer.  Great description.</p>

<p>External Technologies Layer.  Decent description.  I understand this reasonably well.</p>
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