Is there any OOA artifact missing in the figure below? If yes, identify any of the OOA artifacts illustrated in the figure that this missing artifact has a close relationship. Use an example to explain your answer.

SSDs and Other OOA Artifacts Domain Model Sale 1.. Sales Business Modeling Lineltem date quantity Vision Use-Case Model Process Sale use . Customer case names 2. Cashier arrives makes new sale 3 Require | use Case Diagram parameters and return value details Use Case Text ments system events : System : Cashler nterlsystem make NewSal Specification Post-conditions: operations enterltem Operabon Contracts Systerm Sequence Diagrams 60-322 by Dr. X. Yuan 17