$($ Please draw it by hand $)$ Case $3$: Doctors Information Technology $($DocIT$)$ is an IT services company supporting medical practices with a variety of computer technologies to make medical offices more efficient and less costly to run. Medical offices are rapidly becoming automated with electronic medical records, automated insurance claims processing and prescription submissions, patient billing, and other typical aspects of medical practices. In this assignment, you will address only insurance claims processing; however, what you develop must be able to be generalized and expanded to these other areas of a medical practice. Your assignment is to draw an ERD to represent each phase of the development of an insurance claims processing database and to answer questions that clients might raise about the capabilities of the application the database supports in each phase.

a$)$ The first phase deals with a few core elements. Draw an ERD to represent this initial phase, described by the following:

A patient is assigned a patient ID$,$ and you need to keep track of a patient's gender, date of birth, name, current address, and list of allergies.