The Porter Value Chain as an example of a table in the shape of an arrow, by Gonzalo Medina.
Source: http://tex.stackexchange.com/questions/112579/table-in-the-shape-of-an-arrow/112681#112681
%\title{The Porter Value Chain}
%
% Source: http://tex.stackexchange.com/questions/112579/table-in-the-shape-of-an-arrow/112681#112681
%
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{calc,matrix,decorations.markings,decorations.pathreplacing}
\definecolor{colone}{RGB}{209,220,204}
\definecolor{coltwo}{RGB}{204,222,210}
\definecolor{colthree}{RGB}{207,233,232}
\definecolor{colfour}{RGB}{248,243,214}
\definecolor{colfive}{RGB}{245,238,197}
\definecolor{colsix}{RGB}{243,235,179}
\definecolor{colseven}{RGB}{241,231,163}
\tikzset{
table/.style={
matrix of nodes,
row sep=-\pgflinewidth,
column sep=-\pgflinewidth,
nodes={rectangle,text width=2cm,align=center},
text depth=1.25ex,
text height=2.5ex,
nodes in empty cells}
}
\begin{document}
\begin{tikzpicture}
\matrix (mat) [table]
{
|[fill=colfour]| & |[fill=colfour]| & |[fill=colfour]| & |[fill=colfour]| & |[fill=colfour]| & \\
|[fill=colfive]| & |[fill=colfive]| & |[fill=colfive]| & |[fill=colfive]| & |[fill=colfive]| & \\
|[fill=colsix]| & |[fill=colsix]| & |[fill=colsix]| & |[fill=colsix]| & |[fill=colsix]| & |[fill=colsix]| \\
|[fill=colseven]| & |[fill=colseven]| & |[fill=colseven]| & |[fill=colseven]| & |[fill=colseven]| & |[fill=colseven]| \\
|[fill=colone]| & |[fill=coltwo]| & |[fill=colthree]| & |[fill=coltwo]| & |[fill=colone]| & |[fill=colone]| \\
|[fill=colone]| & |[fill=coltwo]| & |[fill=colthree]| & |[fill=coltwo]| & |[fill=colone]| & |[fill=colone]| \\
|[fill=colone]| & |[fill=coltwo]| & |[fill=colthree]| & |[fill=coltwo]| & |[fill=colone]| & \\
|[fill=colone]| & |[fill=coltwo]| & |[fill=colthree]| & |[fill=coltwo]| & |[fill=colone]| & \\
};
% horizontal rules
\foreach \row in {2,3,4}
\draw[white] (mat-\row-1.north west) -- (mat-\row-6.north east);
\draw[white,ultra thick] (mat-1-1.north west) -- (mat-1-6.north east);
\draw[white,ultra thick] (mat-5-1.north west) -- (mat-5-6.north east);
% vertical rules
\foreach \col in {2,3,4,5}
\draw[white] (mat-5-\col.north west) -- (mat-8-\col.south west);
% The labels
\node[fill=colfour] at (mat-1-3) {Firm Infrastructure};
\node[fill=colfive] at (mat-2-3) {Human Resources Management};
\node[fill=colsix] at (mat-3-3) {Technology Development};
\node[fill=colseven] at (mat-4-3) {Procurement};
\node at ([yshift=-10pt]mat-6-1) {\parbox[t]{2cm}{\centering Inbound Logistics}};
\node at ([yshift=-10pt]mat-6-2) {\parbox[t]{2cm}{\centering Operations \\\mbox{}}};
\node at ([yshift=-10pt]mat-6-3) {\parbox[t]{2cm}{\centering Outbound Logistics}};
\node at ([yshift=-10pt]mat-6-4) {\parbox[t]{2cm}{\centering Marketing \& Sales}};
\node at ([yshift=-10pt]mat-6-5) {\parbox[t]{2cm}{\centering Service \\\mbox{}}};
\node[rotate = 90] at ([xshift=-52pt]mat-3-1.north) {SUPPORT ACTIVITIES};
\node at ([yshift=-19pt,xshift=-0.5cm]mat-8-3.south) {PRIMARY ACTIVITIES};
% Erase some visible lines outside the arrow
\fill[white] (mat-1-5.north east) -- (mat-5-6.north east) -- (mat-1-6.north east) -- cycle;
\fill[white] (mat-8-5.north east) -- (mat-5-6.north east) -- (mat-8-6.north east) -- cycle;
% Draw the arrow tip
\shade[top color=colfour!70,bottom color=colfour!70,middle color=colseven,draw=white,ultra thick]
(mat-1-5.north) -- (mat-5-6.north) -- (mat-8-5.south) --
(mat-8-5.south east) -- (mat-5-6.north east) -- (mat-8-5.south east) --
(mat-5-6.north east) -- (mat-1-5.north east) -- cycle;
% The slanted "Margin" labels
\begin{scope}[decoration={markings,mark=at position .5 with \node[transform shape] {Margin};}]
\path[postaction={decorate}]
( $ (mat-1-5.north)!0.5!(mat-1-5.north east) $ ) -- ( $ (mat-5-6.north)!0.5!(mat-5-6.north east) $ );
\path[postaction={decorate}]
( $ (mat-5-6.north)!0.5!(mat-5-6.north east) $ ) -- ( $ (mat-8-5.south)!0.5!(mat-8-5.south east) $ );
\end{scope}
% The braces
\draw[decorate,decoration={brace,mirror,raise=6pt}]
(mat-1-1.north west) -- (mat-5-1.north west);
\draw[decorate,decoration={brace,mirror,raise=6pt}]
(mat-8-1.south west) -- (mat-8-5.south);
\end{tikzpicture}
\end{document}