\documentclass{ctacomputing}

\title{Example Document for the Glossary}
\input{build/glossary.tex}

\setglossarystyle{tree} % this style will show symbols when available

\begin{document}

\maketitle

\tableofcontents

\chapter{Example}
\section{Intro}
Here we discuss some terms like \gls{DPPS} and \gls{OAIS}. The \gls{DPPS} is the
software that manages an archive following the \gls{OAIS} design. We get the
\gls{Ereco}, written as \glssymbol{Ereco} from shower images.

% If you have included the JAMA glossary defined by \gls{CTAO}, you can also use
% terms from it, such as talking about \glspl{LRU} for a \gls{LST} at the
% \gls{CTA-N} \gls{array site}. You can also use terms like \gls{external trigger}
% or \gls{trigger timestamp} that have no abbreviation or acronym.

\printglossaries
\end{document}
