As you may have gathered, one of my roles within this niche covers IT software training. When teaching Microsoft Access forms (usually during day 2), delegates would normally be shown the quickest method of creating such forms and that means using either the Access form templates or the built_in wizard tool.
To quickly put into perspective of the above four types, one can associate which method could be set as 'bound' or 'unbound' for each one. The first two items would be bound; the first to normally a table and the second to a query. The third type of use (Dialog) would normally be an unbound form as by definition this form would not require any archiving of the data values. The last item would be bound to a table if this was generated via the Switchboard Manager tool or unbound if generated by the 'Modal Dialog' template or manually built.