The Principles Of Product Development Flow Pdf Download Free [2021] Official
| Traditional Belief | Reinertsen's Flow Principle | | :--- | :--- | | High resource utilization is efficient. | High utilization creates queues and delays. Create slack to improve flow. | | Large batches are efficient (economies of scale). | Large batches increase risk and cycle time. Smaller batches are faster and cheaper. | | Centralized control ensures alignment. | Centralized control creates delays. Decentralized control, with economic alignment, is faster. | | Variability is a problem to be eliminated. | Variability is a source of innovation. Manage its economic consequences, don't eliminate it. | | Measure task completion. | Measure Cost of Delay to make better economic decisions. |
Break down massive initiatives into small, independently deployable increments.
Every decision in product development carries an economic consequence. The most critical metric for quantifying these consequences is the Cost of Delay (CoD).
Smaller batches require less coordination and management overhead. the principles of product development flow pdf download free
When teams do not understand the economic impact of time, they make poor trade-offs. They might delay a launch by three months just to save $10,000 in development costs, completely ignoring that the three-month delay costs $150,000 in lost market opportunity. Product development flow requires expressing variables—like product cost, development expense, cycle time, and risk—in a single monetary metric. 3. Managing Queues, Not Resources
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establishes a regular, rhythmic heartbeat for the team (such as two-week sprints or monthly release windows). This routine lowers the transaction cost of planning and coordination. | Traditional Belief | Reinertsen's Flow Principle |
Because you cannot see these queues, they are difficult to manage. Invisible queues cause several critical issues:
Product development is a continuous experiment. You form a hypothesis, build a prototype, and test it against reality.
Don't prioritize tasks based on who screams the loudest. Use a simple formula to estimate how much money a feature loses per week of delay, and prioritize work with the highest CoD. Navigating Access to the Concepts | | Large batches are efficient (economies of scale)
The Principles of Product Development Flow: Second Generation Lean Product Development
Small changes can be tested and validated immediately.
Traditional product development approaches often focus on predictability, control, and optimization. However, these approaches can lead to:
Large batch sizes are a primary driver of long cycle times, high risk, and large queues.
