The short answer is that all metadata matters. Not just the metadata about database schemas, but also metadata about information processing flows, integration interfaces, data quality and on and on. Metadata is the key to providing answers to a great many questions, both for executive decisionmakers,
and for IT professionals in the trenches who will be asking questions like:

• "If I buy this great new CRM application, how much is it going to cost my business to get our processes switched over?"
  
• "What's a realistic time estimate for getting customer, prospect, invoice and billing data stored in four different applications synced up to eliminate duplicate data entry?"<...