There are Many forms of dog training such as behavior improvement, activity training, as well as training to instill obedience in the dog. There are also many reasons why An owner would want to train their dog. This can be for fun, for show and competitions, as well as simply to train the dog to do beneficial things in the house and avoid destructive behavior.
Humans have an idea of what makes a good dog to benefit their lives and what makes a dog that is not useful and destructive. For example, good behavior includes barking at strangers, the ability for dogs to socialize in a public place such as Parks, as well as to generally be obedient to its owner. Bad behavior in dogs generally entails barking at the owner and other members of the family or displaying very aggressive behavior to the people that it knows. Chewing on furniture and destroying House property are also signs of bad behavior in dogs.