I'm making an android app and since I've just started I want to try get the most organised code/resources. In my strings.xml file so far I have this:

<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">GameController</string>
<string name="stop">Stop</string>
<string name="start">Start</string>
<string name="preferences">Preferences</string>
<string name="back">Back</string>
</resources>

All of the strings except app_name are used in an options menu. But since I will be adding much more strings I was thinking that it might be better to do something like this:

<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">GameController</string>
<string name="menu_stop">Stop</string>
<string name="menu_start">Start</string>
<string name="menu_preferences">Preferences</string>
<string name="menu_back">Back</string>
</resources>

Is it the best way or should I use another system?