This site's founder, Tim Carter, developed Behavior Training to overcome the flaws of Obedience Training, and to better address the needs of the modern dog owner: that the dog behaves well regardless whether the owner is around or not.
For us, Behavior Training means that we behave in a way that motivates our dog to behave the way we want. This is diametrically opposed to Obedience Training, where you lure or command the dog to do what you want - and if (s)he does not, you obviously then have to punish the dog for disobedience, whether by withholding the treat you lured with, or physically, or whatever.
All Obedience Training, by its very name, comprises an element of lure or force or fear to get the dog "obedient", and further some form of punishment if you consider the dog not being "obedient". Conversely, our proprietary Behavior Training is void of the idea of "obedience" and "disobedience". There is no reward and no punishment for behavior. We merely change our own behavior when we are unhappy with the dog's behavior. Because dogs learn everything from what we do, and next to nothing from what we say. When you think "he learned my command", he really learned from your body language!
While we can, and should, start Behavior Training already at puppy age, the adult dog obviously is much more receptive for Behavior Training. Behavior Training requires a somewhat mature dog, and a mature dog owner.
Indeed, Behavior Training requires a good degree of consciousness and self-reflection from us as dog owner, handler, or trainer. And this is why Behavior Training hasn't caught on yet with the average dog trainer: Obedience Training doesn't require any of that, just a commander-type of mind - which is something every average human being has from as early as the terrible twos.
Note that every key point raised above you can find more comprehensively explained in other places on this website. The menu is your friend. Here, links have been omitted only to keep this decision tree straightforward.
PLEASE NOTE: Posting a fragment of your overall dog problem in the comments below is not going to help. Provide complete details if you really seek the right solution. Of course we have a page for that as well: Dog Problem Consultation.