# Need help to generate a tikz graphics

I am very new at tikz or any type of latex graphics. I need to generate a latex graphics for this diagram. can anyone help me?

Something like this:

That you will able to draw such images yourself, please start read TikZ manual. At least chapter TikZ ist kein Zeichenprogramm!

Above images was generated by the following code:

\documentclass[border=3mm,
tikz,
preview
]{standalone}

\begin{document}
%---------------------------------------------------------------%
\begin{tikzpicture}[
> = angle 90,
node distance = 8 mm,
start chain = going right,
every join/.style = ->,
every node/.style = {shape=rectangle, draw,
inner xsep=2mm, inner ysep=1mm,
text width = 33mm, align=left,
on chain,
join},
]
Tutorial A\\
\node   {Timed Interface\\
Tutorial B\\