ISO 9000 is a management system that sets up critical data monitoring functions and then ensures that the appropriate authorities are monitoring this data and taking effective corrective action to address deficiencies, contain nonconforming material or services and inform the customer.
TQM requires a continuous improvement cycle, employee participation and satisfaction, application of appropriate advanced statistical tools and technology, functional integration between and among all department.
ISO describes what the functions and actions need to be in place to sustain a minimum quality system. TQM (and AIG 9000) are prescriptive and are more specific in defining the means by which you achieve a Maxium quality system.
Hope this helps
ng and des