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diff --git a/content/intro.tex b/content/intro.tex index 35ff21e..2a077bc 100644 --- a/content/intro.tex +++ b/content/intro.tex @@ -28,13 +28,10 @@ To address this new problem a concept of a datacenter \gls{dt} was proposed~\cit \begin{figure} \centering - \includegraphics[width=0.95\linewidth]{images/five_dimensional_dt.pdf} - \caption{A basic framework for the \gls{dt}. Four core elements of a \gls{dt} are defined: The physical entity \one and the simulated virtual twin \two. A service for out-of-band data analytics \three and a persistent storage of historical data \four are crucial to the \gls{dt} because they are necessary to gain meaningful monitoring insights. Adapted from Tao \etal ~\cite{DBLP:conf/cirp/TAO2018169}.} - %Fei Tao is a renowned figure with over 62k citations. He is a figure of authority on digital twins.% - \label{fig:five_dimensional_dt} + \includegraphics[width=0.8\linewidth]{images/simple_dt.pdf} + \caption{Elements of the digital twin ecosystem~\cite{DBLP:modsim24/presentation/Iosup2024}.} + \label{fig:simple_dt} \end{figure} -% (3) in the original paper by Fei Tao is referenced to just `Services`. -% Nonetheless I name them here as Data Analysis Services, because what Fei Tao lists (e.g., fault detection, fault determination, fault-tolerant management, maintenance) is inherently reliant on good data analytics. \section{Context}\label{s:context} @@ -49,7 +46,7 @@ The \gls{dt} can reliably manage the health of the physical entity by detecting This allows maintenance to be scheduled proactively, reducing unplanned downtime and preventing catastrophic failures. Forecasting future maintenance and managing the physical health of an object or facility are the prime purpose of many \gls{dt}s used in practice~\cite{DBLP:conf/AIAA/Teugel2012}. -The first mention of a \gls{dt} dates back to 2003, when Dr. Michael Grieves of Dassault Syst\'emes introduced the 3 core components of a \gls{dt}: the virtual entity, physical entity and the two-way connection (see Figure \ref{fig:five_dimensional_dt}). +The first mention of a \gls{dt} dates back to 2003, when Dr. Michael Grieves of Dassault Syst\'emes introduced the 3 core components of a \gls{dt}: the virtual entity, physical entity and the two-way connection (see Figure \ref{fig:simple_dt}). Due to insufficient technological foundations, little work is available on \gls{dt}s between 2003 and 2018, and it is only with the rapid growth of cloud computing, \gls{iot} and Big Data analytics that \gls{dt}s have re-emerged. Today, research is focused on bridging the gap between the long-established foundations of \gls{dt}s and new, novel applications in academia and industry, such as the \gls{dcdt}~\cite{DBLP:conf/cirp/TAO2018169, DBLP:journals/computer/AthavaleBBMMPS24}. |