ISO 9001 outlines criteria for:

Product conformance
Good business practice
Product certification
Safety

ISO 9001 is important to your company because:

There are many internal benefits from having an ISO 9001 QMS
It gives companies a marketing advantage in many markets
Companies with ISO 9001 systems in place have improved communication in their company
All of the above

A process management approach is:

Managing processes as a system of interlinked processes
Managing employees with documented procedures
Documenting processes as procedures and work instructions