With my previous 2 therapists I had a treatment plan - it was a requirement of the organization that they worked for - they both worked for the same organization - the first one left so I ended up with a different T. They were formal documents that spelled out goals, length of time, and approaches. I had to sign them as well as my T. They were then revisited every 3 months to see if I had reached my goals. For me they were very disrubtive - I hated it... though others might find them helpful.
My new T and I don't have goals or anything. I had found one that does long term therapy and my "goal" was getting support in my life....