diff --git a/Mafia-the-Game.tex b/Mafia-the-Game.tex
index 079543e..5522713 100644
--- a/Mafia-the-Game.tex
+++ b/Mafia-the-Game.tex
@@ -130,6 +130,7 @@
 \input{./src/legends.tex}
 \input{./src/description/index.tex}
 \input{./src/requirements/index.tex}
+\input{./src/design/index.tex}
 % \input{./src/test.tex}
 
 \end{document}
diff --git a/src/design/entities/index.tex b/src/design/entities/index.tex
new file mode 100644
index 0000000..ae7242d
--- /dev/null
+++ b/src/design/entities/index.tex
@@ -0,0 +1,3 @@
+\subsection{Datu bāzes tabulu apraksts}
+Datubāzes tabulu lauku, datu tipi, lauka atribūti - obligātums, noklusētās vērtības, primārā atslēga, unikalitāte - ir aprakstītas atsevišķās tabulās (skat. x.1, x.2, … , x.n tab. % TODO: add all table references).
+Visām tabulām, \texttt{VARCHAR} un \texttt{TEXT} laukiem tiek lietots UTF8 kodējums.
diff --git a/src/design/index.tex b/src/design/index.tex
new file mode 100644
index 0000000..afcec3b
--- /dev/null
+++ b/src/design/index.tex
@@ -0,0 +1,4 @@
+\section{Programmatūras projektējuma apraksts}
+\subsection{Datu bāzes projektējums}
+\input{./src/design/logical-description.tex}
+\input{./src/design/entities/index.tex}
diff --git a/src/design/logical-description.tex b/src/design/logical-description.tex
new file mode 100644
index 0000000..2ef5d6e
--- /dev/null
+++ b/src/design/logical-description.tex
@@ -0,0 +1,7 @@
+\subsection{Datu bāzes loģiskais ER modelis}
+\begin{figure}[htbp]
+	\centering
+	\includegraphics[width=\linewidth]{./src/img/KonceptualaisERModelis.png} % TODO: replace with correct picture
+	\caption{Datu bāzes loģiskais ER modelis}
+	\label{fig:logical-model}
+\end{figure}