What is it about?
Can you roughly describe your business offering?
Can this proposition be distinguished between core offer and additional/complementary services?
Why is it relevant?
Your new business idea may have several features. Some are core, some are additional. You may want to focus first on your core offering and later on built on it.
Steps to conduct this activity
Based on your initial idea/purpose, define your core offer and your additional features with post-its.
You can also add key stakeholders and interactions (lines/arrows)