of these two values is called the risk exposure. The risk exposure value is used to identify the risks that are critical to service delivery. The critical risks influence the #Delivery strategy design and the #Decision point planning. Delivery strategy design This process uses the service description, the situation analysis and the risk analysis as inputs to define an optimal service delivery strategy. The resulting service delivery strategy consists of three elements: A list of actions to mitigate risks Service execution approach Service control approach. Define actions ISPL provides heuristics on how to mitigate risks and change the individual situational factors that cause them. An excerpt of these heuristics can be found in Table 3. Service execution approach The service execution approach determines how the service is executed. For projects, the service execution approach is referred to as the development approach. It consists of a description approach, a construction approach and an installation approach. ISPL provides the user with heuristics on what type of description, construction and installation approach fits best to the situational factors and critical risks found in the #Situation analysis and #Risk analysis. For example, ISPL advises to use an evolutionary construction and installation approach when both overall complexity and uncertainty are high. Service control approach The selection of a service control approach is based on the situational factors and overall complexity and uncertainty found in the #Situation analysis. ISPL provides heuristics on which types of control are most suitable for various situational factors. In total there are six types of control: development, quality and configuration in a formal and frequent variant. Check consistency and analyse impact After defining a complete service strategy the consistency between the chosen strategy options has to be checked and possibly some choices have to be adjusted. The impact of the chosen strategy should also be analysed by checking that all critical risks have been addressed. It is also that some strategies cause new critical risks. Decision point planning The goal of decision point planning is to determine a sequence of decision points and give a clear description on each of the decision points, using the #Delivery strategy design as input. The sequence and contents of the decision points should reflect the chosen service delivery strategy. The decision point planning is made in the following order: Derive basic sequence of decision points. Adapt basic sequence to accommodate actions. Describe decision points. Derive