Enterprise Knowledge Development (EKD) is a method for reasoning on change in organisations. It tackles different aspects of organisations : who does what, how and why. Applying EKD is an iterative, non-linear and guided process. Guidance is based on a decision making pattern that promotes a situation and decision-oriented view. The claim is that EKD engineers are repeatedly faced with situations that need them to make decisions. Thanks to the use of the decision making pattern together with domain specific, EKD specific or generic knowledge, the EKD process systematically provides guidance. Generic guidance is the default option that includes the co-operative aspects of decision making.