HHMI2016talk.tex

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\begin{document}
\title{Developing Beginner-Friendly User Interactions for the Clojure Programming Language}
\author{Shamund Gordon, Tony Song, Richard Stangl}
\institute[UMM] % (optional, but mostly needed)
{
 % \inst{1}%
  University of Minnesota, Morris
}
\date[]  
{HHMI lunch meeting, June 29 2016}

\begin{frame}
  \titlepage
\end{frame}


\begin{frame}

\frametitle{Outline}
\tableofcontents
\end{frame}

\section{Overview of the project}

\begin{frame}[fragile]
	\frametitle{What is Clojure?}
	\begin{itemize}
		\item Functional programming language
		\item Developed by Rich Hickey in 2007
		\item Example: 
		\begin{verbatim}
			(+ 7 4)
		\end{verbatim}
		\begin{verbatim}
			(* 3 9)
		\end{verbatim}
	\end{itemize}
\end{frame}


\begin{frame}
	\frametitle{Introduction to the project}
	\begin{itemize}
		\item Integrate Clojure into an introductory CS class
		\item Currently use Racket
		\begin{itemize}
		\item Functional programming language
		\item Functions and variables are immutable
		\item Mostly used for educational purposes
		\item Similar syntax to Clojure
		\end{itemize}
	\end{itemize}
\end{frame}

\begin{frame}
	\frametitle{Why Clojure not Racket?}
	\begin{itemize}
		\item Quickly gaining popularity in industry
		\item Run on Java
		\begin{itemize}
		\item Not functional programming language
		\item One of the most widely used languages in industry 
		\end{itemize}
		\item Excellent libraries (data processing, image recognition, graphical, musical features)
		\item Large community and excellent resources
	\end{itemize}
\end{frame}


\begin{frame}
	\frametitle{Issues with Clojure}
	\begin{itemize}
		\item Confusing error messages
		\begin{itemize}
		\item An error message is information displayed when an unexpected condition occurs
		\end{itemize}
		\item Lack of beginner friendly editors
	\end{itemize}
\end{frame}

\begin{frame}
	\frametitle{Previous work}
	\begin{itemize}
		\item Improved error messages
		\item Developed graphics library
		\item Testing
	\end{itemize}
\end{frame}

\begin{frame}[fragile]
\frametitle{Error message example}
A piece of Clojure code with an error
\begin{verbatim}
(- (+ 3 4) 5
\end{verbatim}
\end{frame}

%Mentions we're doing usability study to find out how effective our error messages are
\begin{frame}
	\frametitle{Standard error messages}
	\includegraphics[height=75mm]{standard.png}
\end{frame}

\begin{frame}
	\frametitle{Improved error messages}
	\includegraphics[height=30mm]{improved.png}
\end{frame}

\section{Usability study}

\begin{frame}
  \frametitle{Usability study}
Contents:
\begin{enumerate}
\item Overview of the usability study 
%\item Standard error message vs Modified error message
\item Study procedure
\end{enumerate}
\end{frame}


\begin{frame}
  \frametitle{Overview of the Usability Study}
The purpose of the study is to compare our modified error messages to standard error messages by looking at:
\begin{itemize}
\item Success rate
\item Time
\item If not solved, how close or on track were them to solving the question
\end{itemize} 
\end{frame}

\begin{frame}
  \frametitle{Design of Usability Study}
\begin{itemize}
\item 16 questions divided into 4 sub levels of difficulty, 4 questions in each level
\item Each participant receives 2 questions from each level of Racket
\item Participants are randomly given either Clojure with standard error messages or  error messages. 2 from each level 
\item Racket is our way to assess the level of the participant
\end{itemize} 
\end{frame}

%\begin{frame}
%  \frametitle{Racket Error Messaging}
%  \includegraphics[scale=.17]{R2Rshot}
%\end{frame}

%\begin{frame}
%Error: java.lang.RuntimeException: Unable to reslove symbol: X in this context
%  \frametitle{Clojure Standard Error Messaging}
%  \includegraphics[scale=.17]{CS20Sshot}
%\end{frame}

%\begin{frame}
%  \frametitle{Clojure Modified Error Messaging}
%  \includegraphics[scale=.17]{CM16shot}
%\end{frame}

\begin{frame}
  \frametitle{Procedure}
\begin{itemize}

\item Participants must have taken CS 1301 with no other programming experience
\item Participant can review overview of Racket \& Clojure for as long as desired before study begins. Access is also available during the study.
\item Record for 21 minutes Racket, optional Break Time, 21 minute Clojure
\item Interview questions
  
\end{itemize}  
\end{frame}

\begin{frame}
  \frametitle{Study Home Screen}
  \includegraphics[scale=.17]{StudyHomeScreen}
\end{frame}

\begin{frame}
  \frametitle{Data Storage}
  \includegraphics[scale=.17]{DataShot2}
\end{frame}

\begin{frame}
  \frametitle{Interview Questions}
 \begin{itemize}
 
\item What parts of the study were easy or clear to understand?
\item What parts of the study were difficult or confusing?
\item What would you suggest improving in the error messaging system in Racket or Clojure? 
 
 \end{itemize}
\end{frame}  


\section{Work in progress}

\begin{frame}
  \frametitle{Work in progress}
Contents:
\begin{enumerate}
\item Continued usability study 
\item Project re-structuring
\end{enumerate}
\end{frame}

\begin{frame}
  \frametitle{Continued usability study }
More data points are needed for data analysis
\begin{figure}
%%% note: the file is in the same folder as your .tex file
\includegraphics[height=55mm]{one-data.png}
\end{figure}
\end{frame}


\begin{frame}[fragile]
  \frametitle{Project re-structuring}


\begin{figure}
%%% note: the file is in the same folder as your .tex file
\includegraphics[height=15mm]{Step.png}
\end{figure}
\begin{itemize}
\item Example: (+ 4 false)
\end{itemize}
\textbf{Standard:} 
\begin{verbatim}
java.lang.ClassCastException: 
	java.lang.Boolean cannot be cast to java.lang.Number
\end{verbatim}
\textbf{Modified:}
\begin{verbatim}
In function +, the second argument false 
must be a number but is a boolean.
Found in file test.clj on, or before, line 11
\end{verbatim}
\end{frame}


\begin{frame}
  \frametitle{Project re-structuring}
%Detailed explanation about atom processing
Failing information is stored in a variable for processing
\begin{figure}
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\includegraphics[height=40mm]{atom-ex.png}
\end{figure}
\end{frame}

\begin{frame}
  \frametitle{Project re-structuring}
Using a new feature of Clojure, the global variable is no longer used
\begin{figure}
%%% note: the file is in the same folder as your .tex file
\includegraphics[height=20mm]{no-atom-ex.png}
\end{figure}
\end{frame}

\begin{frame}
  \frametitle{Discussion}
Questions?
\end{frame}

\end{document}