=。c System of Internal eRtEl Characteristics of an effective internal control system include: n Competent, reliable, and ethical personnel n Assignment of responsibilities n Proper authorization n Separation of duties Task Team of FUndaMientalactoUntING Business Sehool. Sun Yatsen niversity8 Establishing an Effective System of Internal Control ⧫Characteristics of an effective internal control system include: Competent, reliable, and ethical personnel Assignment of responsibilities Proper authorization Separation of duties