deletions | additions       diff --git a/Specifications.tex b/Specifications.tex  index 588b90a..9a63c84 100644  --- a/Specifications.tex  +++ b/Specifications.tex 
...
\item Allow circular touch phidget to press more than one key at a time  \item Ensure only physical touched are recognised and acted upon by the phidget  \item Ensure that no electrical inteference affects the phidget whilst in operation  \item When circular touch is being operated, ensure that no other navigation device can be used (Joystick or Slider)  \end{itemize}  \subsection{Slider for Zoom Control}  \begin{itemize}  \item Slider must be able to control zoom in and zoom out when a certain threshhold is reached  \item When slider is inactive, ensure other devices can be used  \item When slider is active, ensure no other devices can be used  \item Ensure that when slider goes outside the trigger threshold, the keys for zooming will be released  \end{itemize} 
...
\item The Joystick will action a command based on a certain threshold on either th X or Y axis  \item The joystick will be capable of rotating the view on the software by triggering a threshold on the X axis  \item The joystick can pan up and down on the vertical axis by triggering a threshold on the Y axis  item When the joystick is in use, ensure no other device can be activated at the same time.  \end{itemize}  \subsection{RFID Tags for quick navigation and location storage}