In an adult criminal court, a person who is found guilty receives a criminal conviction and a proportionate sentence or punishment. The punishment can be anything from a fine, and/or probation or incarceration. Typically, a criminal conviction is meant top punish the offender, offer the victim and the community a sense of justice and deter others from committing similar crimes.
The goal is much different in juvenile courts. A juvenile doesn't receive a conviction, but rather what's called a "juvenile adjudication." This means the court does not consider the youth to be guilty of but is giving a "determination of status." The main goal is, instead of punishment, to educate the youth, rehabilitate them and encourage them to find ways to make better choices.
In the Missouri Juvenile Justice system there are a lot of phrases that are different from criminal court. Instead of being "arrested" a youth is "taken into custody," they are issues a "summons," rather than a warrant," the have a "hearing" instead of a "trial," they are "placed" instead of "imprisoned," and they receive "aftercare/supervision" instead of "parole."