T-Box model
= class diagram modeling a domain
A-Box model = object diagram modeleling instantiating a T-Box model
Important roles in a hospital include physician, nurse, and patient. (Of course nurses and physicians are occasionally patients, too.) Every patient has a primary physician. Nurses care for patients. A patient has many lab reports. There are many types of lab reports. A report has a date and a link to a document.
Draw a T-Box model of this domain.
Smith is a patient at People's Hospital. Her primary physician is Gupta. Nurses Betty and Ratchet care for her. Smith has two lab reports, a blood panel and an x-ray.
Draw an A-Box model of this domain using the classes in your T-Box model.