Collaboration and deriving scenarios that gives the maximum business and making sure all team members understand the scenarios is a critical step in a Behavior Driven Development (BDD) process. OOPSI, is a collaboration technique, that precisely facilitates this.
I have been using an awesome BDD collboration technique called OOPSI. This was originally coined by Jenny Martin and Pete Buckney.
I have used OOPSI in many projects and our clients been successfully using it in their project and seeing some great result. Here is a short video about OOPSI. If you would like to see a longer version, I have included a link in the comment