Lean Startup Chapter 9

Here are my notes for Chapter 9

The Lean Startup methodology advocates for the small batch approach. The biggest advantage of working in small batches is that quality problems can be identified much sooner. The small-batch approach produces a finished product every few seconds, whereas the large batch approach must deliver all the products at once, at the end

Example of large batch

It is like the changes that are made to a product such as the iPhone when it is updated.  All 1,500 updates are released to customers in one giant batch

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Small batching is also called continuous deployment. This is where you make changes everyday then check for defects and remove them immediately.

Small batches allow startups to get through the Build-Measure-Learn feedback loop quickly. The ability to learn faster from customers is the essential competitive advantage that startups must possess.

Here is an example of small batches at work from the book

THE PROJECT TIME LINE
Design and engineering of the initial virtual prototype	1 day
Production and assembly of initial hard prototypes	3 days
Design iteration: two additional cycles	5 days
Initial production run and assembly of initial forty units	15 days

Large batches end in problems that lead to interruptions for the next batch.  It also causes a focus on how many you can produce rather than getting it to the customer.