Starting from the business-process or a business model and decomposing that into sub-processes or sub-models recursively until some condition is met by which it can't be decomposed any further.

从业务过程或者业务模型开始着手，然后将之递归地分解成子过程或子模型，直到达到某些条件，再继续分解就会违反这些条件为止。