ions that have multiple teams, where each team has their own area that is clearly separated from the others. The isolation is good when it matches organizational boundaries, but adds unnecessary complexity when there is not a good match.</p>
<p>Engines are used by a number of large organizations to power sites with millions of users.</p>
<p>If you are considering splitting up your application into engines just to reduce the amount of data that needs to be initially downloaded and increase the performance, E