\chapter{Overall design}
\section{System overview}
\textit{Short description of what the systems's function is and any important background or constraints}.
TCCRMS enables the organization to beter serve their customers through the introduction of reliable process and procedures of interacting with those customers. 
The following functions are It shows customer details to the employee when the customer is calling.


\section{Stakeholders}
\textit{Who the users of the system are and maybe their concerns or relevant views}.

\section{View template}
This is a description of the template of used to describe all of the views.

\subsection{Primary presentation}
The primary view shows the elements and the relationships among them that populate the view. It contains information which we want to convey about the system, in the vocabulary of the view. It includes the primary elements and relations of the view.

\subsection{Element catalog}
The element catalog details the elements and relations depicted in the primary presentation. Any elements or relations which where relevant to the view that were omitted from the primary presentation, are introduced and explained. The behavior and interfaces of an element are also described here.

\subsection{Context diagram}
The context diagram shows how the system depicted in the view relates to its environment in the vocabulary of the view.

\subsection{Variability guide}
The variability guide shows how to exercise any variation points that are a part of the architectural shown in this view.

\subsection{Architectural background}
The architectural background explains why the design reflected in the view came to be.
\subsubsection{Rationale}
The rationale part will explain why the decisions reflected in the view were made and why alternatives were rejected.
\subsubsection{Assumptions}
The assumptions part will describe any assumptions reflected in the design.


\section{Chosen views}
\textit{Rationale about the chosen views}.


\section{Mapping between views}
\textit{relationships among the views}

