State Machine Diagram Quiz

What is a state machine diagram?

• A chart for tracking financial transactions

• A flowchart for programming logic

• A diagram that shows the life of an object in states and transitions

• A graphical representation of a database schema

What does a transition represent in a state machine diagram?

• A type of object in the system

• The initial state of an object

• A condition that must be met for an action to occur

• The movement of an object from one state to another

What is a pseudostate in a state machine diagram?

• A condition that triggers a transition

• An action that occurs during a transition

• The starting point in a state machine diagram

• A state that cannot be exited

What does the term 'concurrent states' refer to?

• When an object is in one or more states at the same time

• The sequence of states an object goes through

• The final state of an object

• The initial conditions of an object

What is a guard condition?

• The original state of an object

• An action that must be completed during a transition

• A true/false test to see whether a transition can fire

• A type of state in the diagram

What is the first step in creating a state machine diagram?

• List all transitions for the object

• Draw the initial state of the object

• Identify all possible states for the object

• Review the class diagram and select classes that might require state machine diagrams

What does the term 'action-expression' refer to?

• A type of diagram used in programming

• The final state of an object

• A condition that must be met for a state to be valid

• An activity that must be completed as part of a transition

What is meant by 'multiple exits from a state'?

• A type of guard condition

• A single exit point

• A transition that cannot occur

• An 'OR' condition

What should be reviewed and tested in a state machine diagram?

• The number of objects in the system

• The state transitions and their conditions

• The color scheme of the diagram

• The font used in the diagram

What is the final step in creating a state machine diagram?

• Identify the main object class

• List all possible states

• Draw the initial state

• Ensure the diagram covers all exception conditions