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Extreme Improvement Method

A method to create Improvement activities or projects, with the baseline and assumptions pre-defined in order to achieve a larger increase in outcome than standard, which is defined in the method as a factor. For an Improvement to be considered Xtreme, it has to be resulting in at least a factor 3 or higher. To achieve this, a standard methodology is defined with exponential calculations as a power of 10: 10^0 (1) to 10 ^5 and higher, classifying the effort or partial effort as Extreme Improvement Method: from 1 (minimum) to 5 (X^2 Extreme):

10^0: Baseline, 100 % or 1. This is considered the nominal starting position in ideal situation. For example, a process has a basic capacity of 100 units per hour, where 100 is equal to 1. If we want to improve according to the XI method, we would have to have an outcome of at least 3: 300 units per hour as ne capacity. To achieve this, the method uses starting assumptions and question sets to ensure all involved have the same mindset and demand on the (partial) processes and activities to achieve such outcome. This to ensure the standard improvement limitation of factor 3 is overcome. Ideally, the outcome is higher than a factor 10 improvement. This is required to be considered a succesful Xtreme Improvement Project or Initiative.

Abbreviation: XI Method (XIM).

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The formal method is described in the book “Asking the right questions: for anybody who cares” by M. Casteleijn.