No to your initial framework.
However, there are moments during the case where you may be asked to brainstorm or come up with a "mini-framework" (such as reasons x branch on your framework is happening). In this case, you may need to think aloug (i.e. because they don't give you time to think, or you can tell they'd like to move faster). In this case, make sure to signpost, stay organised, and write as you speak