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- <title>Frontend / Backend interface</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.75.2"><link rel="home" href="index.html" title="Meta State Machine (MSM)"><link rel="up" href="ch06.html" title="Chapter 6. Internals"><link rel="prev" href="ch06.html" title="Chapter 6. Internals"><link rel="next" href="ch06s03.html" title="Generated state ids"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Frontend / Backend
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+ <title>Frontend / Backend interface</title><link rel="stylesheet" href="boostbook.css" type="text/css"><meta name="generator" content="DocBook XSL-NS Stylesheets V1.75.2"><link rel="home" href="index.html" title="Meta State Machine (MSM)"><link rel="up" href="ch06.html" title="Chapter 6. Internals"><link rel="prev" href="ch06.html" title="Chapter 6. Internals"><link rel="next" href="ch06s03.html" title="Generated state ids"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Frontend / Backend
+ interface</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch06.html">Prev</a> </td><th width="60%" align="center">Chapter 6. Internals</th><td width="20%" align="right"> <a accesskey="n" href="ch06s03.html">Next</a></td></tr></table><hr></div><div class="sect1" title="Frontend / Backend interface"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="d0e3079"></a><span class="command"><strong><a name="internals-front-back-interface"></a></strong></span>Frontend / Backend
interface</h2></div></div></div><p>The design of MSM tries to make front-ends and back-ends (later) to be as
interchangeable as possible. Of course, no back-end will ever implement every
feature defined by any possible front-end and inversely, but the goal is to make