Stomach cancer is staged according to where the cancers found and how far it has invaded the stomach tissue, or if it has spread beyond the stomach and into other organs (stages 0 to IV). The treatment of stomach cancer depends on the size and location of the tumor, the stage of the disease and the patient's general health.
The star schema gets its name from the physical model's resemblance to a star shape with a fact table at its center and the dimension tables surrounding it representing the star's points.
The schema defines what kind of information the directory can hold. With Active Directory, a single schema applies to the entire forest; that is, all domain controllers must use the same schema. With ADAM, each stand-alone ADAM instance or ADAM configuration set can have its own schema.