Control processes. Panels of experts also associate high quality with a firm that has strong controls in place over its audit process. GAAS requires a firm to maintain a quality-control system and requires auditors to adequately plan their audits. There is much leeway, however, in determining how formal and prescriptive these systems need to be. Firms with a more rigorous quality-control system and a more systematic audit methodology process are less likely to have material misstatements go undetected by their audit procedures.