Labels:text | diagram | font | screenshot | number | parallel | plan | line OCR: Customer places Order requests Order item - Price is located at ReceivedDate ScheduledDate - Quantity ships bills DeliveryDate + Priority Name Requirement Address Status Phone CreditStatus Receive CreditLimit Location -+ Validate Product + Size Authorize Plan Hod +Address + Accept Release + Instructions + Allocate -+ Name -+ Price Check Credit Schedule Ava ilQty + Release Reject Cancel PROPERTY MODEL is the key model for object oriented analysis. This model shows the classes and their three types of properties: attributes, references, and methods.