Which of the following features of e-commerce technology changes industry structure by lowering barriers to entry but greatly expands the market at the same time?

Which of the following statements about coding is incorrect?

a. Coding is the first step in the reimbursement process. b. ICD codes are used to classify diseases and injuries. c. CPT codes are used to specify medical procedures (treatments). d. Coders typically are registered nurses who receive special training. e. Codes typically are assigned on the basis of a clinician's notes.

Given the relation EMPLOYEE(ID#, LastName, ProjectID, ProjectName) and ProjectID can determine ProjectName, but not last name, the relation violates:

A) 1st normal form. B) Mills normal form. C) 2nd normal form. D) 3rd normal form. E) Olsen normal form.