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+* toc
+{:toc}
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+# High-Level Design
 ![High-Level Design]({{ site.baseurl }}/img/engines_high_level_design.jpg)
 
 On the diagram above is shown interaction of major components of software system: Parser and Runtime. Parser performs translation of input ECMAScript application into byte-code with specified format (refer to [Bytecode](/internals/#byte-code) and [Parser](/internals/#parser) page for details). Prepared bytecode is executed by Runtime engine that performs interpretation (refer to [Virtual Machine](/internals/#virtual-machine) and [ECMA](/internals/#ECMA) pages for details).