What would be the next step in the continual service improvement (CSI) model after? 1. What is the vision? 2. Where are we now? 3. Where do we want to be? 4. How do we get there? 5. Did we get there?

Return on investment (ROI) is a financial metric discussed within ITIL business case and CSI contexts, but it is not one of the six defined steps of the CSI model.

Cost analysis is relevant to service management decisions and improvement justification, but 'How much did it cost?' is not a step defined in the CSI model.

After confirming that improvement targets were achieved in step 5 ('Did we get there?'), the CSI model closes with step 6: 'How do we keep the momentum going?' This step involves communicating successes, reinforcing a culture of improvement, and ensuring the cycle begins again so that continual improvement becomes an ongoing organizational behavior rather than a one-time project.

Value on investment (VOI) is an ITIL concept used to capture broader, non-financial value from improvements, but it is not a named step within the six-step CSI model.