False Negatives | Glossary

Definition:

A false negative is a project terminated on the assumption that it will fail and then ultimately proves successful. It is harder to track false negatives because after a project is terminated, it is only occasionally reincarnated to prove its ultimate worth. A typical false-negative scenario is one in which the project is terminated, with regard to the expenditure of resources, but is licensed elsewhere, and the licensee ultimately succeeds. When good judgments are made under conditions of incomplete and imperfect knowledge, both these types of error must occur. Logically, any attempt to eliminate one error type results in a greater number of instances of the other type.

Visionaries are especially afraid of a false negative, that customers will reject a flawed MVP that is too small or too limited.

Further Reading:

BOOK: The Lean Startup – Eric Ries

SMED | Glossary

Definition:

Existing systems and tools often need to be reinvented to support working in smaller batches. Shigeo Shingo created concept of SMED (Single-Minute Exchange of Die) in order to enable a smaller batch size of work in early Toyota factories.

SMED (Single-Minute Exchange of Die) is a system for dramatically reducing the time it takes to complete equipment changeovers. The essence of the SMED system is to convert as many changeover steps as possible to “external” (performed while the equipment is running), and to simplify and streamline the remaining steps. The name Single-Minute Exchange of Dies comes from the goal of reducing changeover times to the “single” digits

 

Further Reading:

Book: The Lean Startup – by Eric Ries