Help me apply Statecharts & SCXML to the material below.
Reader and existing knowledge: [describe]
Task and desired outcome: [describe]
Use these principles: Name states according to what is true in them.; Specify event, optional guard, target, and relevant effects for each transition.; Consider absent transitions and terminal states deliberately..
Preserve source facts, identifiers, quantities, conditions, exceptions, and uncertainty.
Separate supplied facts from assumptions. Ask for missing information instead of inventing it.
Explain your representation choices and provide a review checklist. Do not claim formal compliance or correctness from formatting alone.
Material: [paste only information you are permitted to share]