6.1.1. Value Stream, Core, and Enabling
💡 First Principle: A value stream is a series of steps to create and deliver value; core streams deliver value directly to the customer while enabling streams support the core ones — and "enabling" means "supporting," not "lesser."
A value stream is a series of steps an organization undertakes to create and deliver products and services to consumers — the end-to-end flow for a specific scenario. A core value stream directly creates and delivers value to external customers (e.g., fulfilling a customer order). An enabling value stream supports the core value streams without directly touching the customer (e.g., onboarding staff, maintaining infrastructure).
Understanding the difference: core streams face the customer; enabling streams make the core streams possible. Neither outranks the other — an organization needs both, and a failing enabling stream will eventually break the core streams that depend on it.
⚠️ Exam Trap: "Enabling" is not a synonym for "minor" or "optional." It means the stream enables the core ones. The distinction is by relationship to customer value, not by importance.
Reflection Question: Why can a problem in an enabling value stream eventually damage customer value, even though enabling streams don't face the customer?
