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\begin{frame}
\frametitle{Serializable Schedules}

\begin{goal}{}
A schedule is \emph{serial} if the actions of the different transactions are not interleaved;
they are executed one after another.
\end{goal}
\pause

\begin{goal}{}
A schedule is \emph{serializable} if its effect on the database
is the same as that of some serial schedule.
\end{goal}
\remark{%
We assume that there are no effects other than the effects to the datbase,
i.e. no writing to the screen.
}
\pause
\bigskip

\begin{quiz}{\textwidth}{Quiz Serializable Schedules}
We usually only want to allow serializable schedules. Why?
\end{quiz}
\end{frame}