I have several questions with the issue of interlining when one makes a connection from one airline to another on the same day on two different tickets.

For example, one is flying a Oneworld carrier then connecting same day to a *A carrier (which will bring them to the final destination). The flight on the Oneworld carrier and the flight on the onward *A carrier are on two separate tickets. However, there is an interlining agreement between the two airlines. I've read many threads that because of this, the Oneworld carrier can tag my bags to my final destination if one shows the Oneworld carrier's check-in agent his/her separate *A carrier ticket. So when the Oneworld carrier tags the bags to the final destination, will it be one tag showing both the oneworld carrier's flight number and the connecting *A carrier flight number on the same tag or will they actually print two baggage tags: one for the oneworld flight number and the second for the *A airline flight number? Also with the interlining agreement in place, does this mean that the oneworld carrier's check-in agent can also print the boarding pass for the connecting flight on the *A carrier on it's own stock when one shows the agent the separate *A carrier ticket during check-in or can they only go as far as tagging the bags to the final destination?