Drawing Boxed Hierarchical Chart in LaTex

 

\documentclass{article}
\usepackage[edges]{forest}
\begin{document}
\begin{forest}
forked edges,
for tree={draw,align=center,edge={-latex}}
[Recommendation\\ Systems
 [1.1]
 [1.2
  [1.2.1
   [1.2.1.1]
   [1.2.1.2]
  ]
  [1.2.2
   [1.2.2.1]
   [1.2.2.2]
   [1.2.2.3]
  ]
 ]
 [1.3]
]
\end{forest}
\end{document}

Make forest tree fit one page