To find the activities that truly matter, ask yourself these four questions based on the other blocks of your business model: What does our Value Proposition require?

eBay managing its marketplace, Visa processing transactions, or Facebook maintaining its social network.

This is common in manufacturing and product-based firms. It involves designing, making, and delivering a physical or digital product in significant quantities.

Mapping out your Key Activities allows you to spot inefficiencies. If you spend 80% of your time on an activity that doesn't support your Value Proposition, you are wasting money.

Are you struggling with or operational flow ?

By defining these clearly, you can decide what to (core competencies) and what to outsource (non-key activities) to partners, allowing your business to scale faster.