Last year a prospective customer wanted to see a workflow in BOARD where the response to the step impacted the path that you took in the workflow
I have attached the simple solution that I built for the demonstration.
Once installed click through from left to right. You answer Yes/No questions and your response directs you through the flow. You are unable to skip steps and prior steps are also disabled. If you choose Yes to Step 1 then you are taken along the top of the flow. If you choose No to step 1 then you are taken down a more interesting path. You may choose 'Clear All' to reset at any time.
If you answer 'No' to Step 1 and then 'Yes' to Step 2a, you are then asked to enter some data. If yo enter a value of 1000 or below you are taken to Screen B, whereas if the value is above 1000 you are taken to Screen A.
This capsule and DB makes a lot of use of Label Properties, i.e. Visibility and Enabled, as well as 'Sow Message' in Procedures with conditional branches, based on the answers provided.