Four factor model of Theme centered Interaction
<a href="//commons.wikimedia.org/wiki/User:Mrmw" title="User:Mrmw">Mrmw</a>
Own work based on: <a href="//commons.wikimedia.org/wiki/File:TCI.png" title="File:TCI.png">TCI.png</a>: <a href="//commons.wikimedia.org/wiki/File:TCI.png" class="image"><img alt="TCI.png" src="https://upload.wikimedia.org/wikipedia/commons/thumb/d/de/TCI.png/80px-TCI.png" decoding="async" width="80" height="80" class="thumbborder" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/d/de/TCI.png/120px-TCI.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/d/de/TCI.png 2x" data-file-width="128" data-file-height="128"></a>