CECS 343 Quiz 2 Questions and Answers 2024/2025

What are the system objects are most likely to be saved and retrieved from a database? → Entity The system objects with which a human actor interfaces with are → Boundary Objects In an UML class diagram a composition relation from class A to class B should denote → Control(?) The collection of method signatures for a class constitutes the class' → Public API The postcondition of a method includes → The method's return value, output parameters, and side effects If a method signature specifies a void return type and that method has no post conditions then → We can safely delete it from the API In an UML class diagram which type of relation must denote the relation name? → General Association → Not Entity, Boundary, Control In a sequence diagram each column represents a(n) 2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain Excel! 1 | P a g e | G r a d e A + | 2 0 24 / 2 0 2 5 → Class or Actor Every Male is a Human. Given class Male and class Human we should create the relation → Male inherits from human In an UML class diagram a composition relation from class A to class B should denote → Only B's cardinality In a sequence diagram the actor may only interact with which kinds of objects? → Boundary only Assume class A contains 1 or more instances of class B and if we delete an instance of class A we must also delete the class B instances it contains. In a UML diagram which diamond do we use and which class should it be connected to directly? → Filled in A In an Object-Oriented Analysis and Design system development, there is usually a one-to-one relationship between → Use Cases and Sequence Diagrams Every Human has 2 parents, each of which is a Human. We should model this relation as (assume a Human's parents can continue to exist when the Human itself no longer exists) → Humans contains 2 Humans via aggregation (empty diamond) 17. The collection of me