4.1.2. Understanding the Lifecycle
💡 First Principle: Understanding the lifecycle means seeing it as a system of related activities serving the continuous creation and improvement of value — not memorizing eight isolated definitions.
The lifecycle is a model for managing products and services across their whole existence. The activities relate to one another: outputs of one feed others, and the four dimensions apply within each. Crucially, the lifecycle integrates with the value chain (Phase 5) and continual improvement — it's the activity-level view of how value gets created and sustained over time.
⚠️ Exam Trap: The lifecycle is not the same as the value chain. The lifecycle describes activities a product or service moves through; the value chain (5.4) describes the organization's operating-model activities. They're related but distinct models — don't merge them.
Reflection Question: How do the four dimensions from Phase 3 apply inside a single lifecycle activity like "build"?
