As a developer you have a lot of freedom when creating domains for your project.
You can choose any name you like. Herein lies a tricky situation however.
The developer can also create domains, with a name the same as default data types on the RDBMS, resulting in errors when deploying the model.
At the moment there are no default validations for these kind of easy mistakes, so rookie developers can create these invalid domains and don't know why they are not allowed.
To make the Software Factory as easy to use as can be, it would be beneficial to included these validations.