Using a Functional Analysis to Change Behavior

A functional analysis helps us to define the target behavior, what is it that we're wanting to change? And also to understand what the function of that behaviour is. Are to identify the circumstances under which a, the behaviors occur. In other words, is this a behaviour that always occurs, or does it occur in certain situations? And how does that situation am set the young person up for success, or perhaps not such a successful arm interactional outcome? I want to clarify the consequences, or the outcome of a behavior, because we know that this is what ar both maintains a behavior and can increase or decrease a behavior. So i'm just beginning with this notion of a function in analysis.