The auditor must adequately plan the work and must properly super- vise any assistants.
2. The auditor must obtain a sufficient understanding of the entity and its environment, including its internal control, to assess the risk of ma- terial misstatement of the financial statements whether due to error or fraud, and to design the nature, timing, and extent of further audit procedures.
3. The auditor must obtain sufficient appropriate1 audit evidence by per- forming audit procedures to afford a reasonable basis for an opinion regarding the financial statements under audit.