Business Software and Policies/Usage Hints

We use business software of all kind (CRM, ERP,...). There are lots of things to remember for fluent usage as keyboard shortcuts, company usage guidelines, colleagues hints, software manuals, internal documentation, ...).

My question: Is there a UI design pattern for adding notices to screens of a software (e.g. on forms, on pages which require actions or user input)?

I'd like to see such addenum for business software to make personal handling easier and to easily deploy company knowledge as department policies, it policies, personal notices, ...