General guidelines
The default.xml file can be used as a starting point for default behaviour for the M3-Toolbox. If you are a new user, you should initially leave most options at their default values. The default settings were chosen as such because they provide the most robust modelling behaviour, and work properly and produce good results in most cases.
There are, however, situations in which the best choice of components depends on the problem itself, so that the default settings aren't necessarily the best. This page will give the user general guidelines to decide which component to use for each situation they may encounter. The user is of course free to ignore these rules and experiment with other settings; these guidelines are available to offer some sense of direction to users.