Uwe 

Queo.Commons.Checks provides methods for checking required conditions.

Queo.Commons.Persistance can be used to create, change or query data persistently in a database.

Queo.Commons.Persistance.EntityFramework can be used to create, change or query data persistently in a database using EntityFramework.

Queo.Commons.MessageTemplateRenderer makes it possible to personalize texts automatically.