Need help in Software Engineering ASAP.

Define the operation (method) names of all classes whose objects participate in the communication diagrams (Figs. 1, 2, 3, 4, 5 and 6) for Check-out Customer use case. The operations should be defined by considering message communication between objects in the communication diagrams. Each operation needs to be defined along with incoming and/or outgoing parameters (10 points)

Fig.1 Communication Diagram for Check-out Customer use case Approved Credit Card Case Dsplry Bill Billrinied A3.3 Updale Refierence A13, A39:Bill I Roquet Ba A311: Bill prinied Print Reccpl DeletedCulome Chage Approved B Fig.1 Communication Diagram for Check-out Customer use case Approved Credit Card Case Dsplry Bill Billrinied A3.3 Updale Refierence A13, A39:Bill I Roquet Ba A311: Bill prinied Print Reccpl DeletedCulome Chage Approved B