答案1
这是一个起点
\documentclass[tikz]{standalone}
\begin{document}
\begin{tikzpicture}
\begin{scope}[every node/.style={inner sep=0pt}]
\node (1) at (0,0) {%
\begin{tabular}{|c|c|}\hline
This & is\\\hline
a & table\\\hline
inside & a node\\\hline
\end{tabular}};
\node (2) at (4,-1.5) {%
\begin{tabular}{|c|c|}\hline
This & is\\\hline
another & table\\\hline
inside & a node\\\hline
\end{tabular}};
\node (3) at (0,-3) {%
\begin{tabular}{|c|c|}\hline
This & is\\\hline
the third & table\\\hline
inside & a node\\\hline
\end{tabular}};
\end{scope}
\draw[blue,very thick,latex-] (2) edge (1.south) edge (3.north);
\begin{scope}[every node/.style={font=\sffamily\bfseries}]
\path (1.north) node[above] {Title 1}
(2.north) node[above] {Title 2}
(3.north west) node[above right] {Title 3};
\end{scope}
\end{tikzpicture}
\end{document}
现在我想您可以自己绘制图表了。