It varies, some applications - the ones that people spend their workday in - have specific iconography that is domain specific for that application. A differen

It varies, some applications - the ones that people spend their workday in - have specific iconography that is domain specific for that application. A difference needs to be made between general public applications and domain specific employee applications. SAP is a great example of this. Of domain specific icons I mean, not of good UX design.