One or more

Zero or More

One

Zero

It represents the direction of the verb ”reserve”.

It represents the direction of the object’s navigability

It represents the direction of execution of the reserve() message

None of the above

An association class

An extension class

A relation class

To focus on the collaboration between 2 objects or a group of objects

To summarize the messages of a sequence

To visualize all the actors of a sequence

Uniform Monitoring Language

United Modeling Learning

Unified Modeling Language

Unified Markup Language

Synthesis diagram

Collaboration diagram

Globalization diagram

An aberration

An operation

An execution

An iteration