\caption{The proposed block diagram of a \textit{server node}, including HW requirements}\label{f:serv_node}
\end{figure}
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\section{System design}
The first mandatory software requirement asks for a web server. It is entirely possible for every measuring device to contain its own web server. However, multiple points are requiring separate parts to work as a \textbf{system}. Two common system structures are \textit{centralised} and \textit{decentralised}.