Ethics:

Ethics in the accounting profession is defined as guidelines and principles. It includes laws and standards of behavior.

AICPA

AICPA stands for the American Institute of Certified Public Accountants. It is founded in 1887. AICPA is set up in the United States and it is the national professional organization of Certified Public Accountant.

Auditor:

The auditor is the person hired by the owner for a systematic examination of books of accounts of the company. The auditor uses its professional knowledge and gathers evidence. It should be a question minded, plan, and being alert to the condition of the misstatement due to fraud and error.

GAAP:

GAAP is a generally accepted accounting principle. It is the set of accounting principles and standards. It was issued in 1973 for US public and private companies by the financial accounting standard board for issuing a public statement.

It is the set of accounting guidelines lines and rules used by the companies for financial reporting.