The control process involves establishing standards, measuring actual performance, comparing performance to standards, and taking corrective action. There are three main types of control: feedforward focuses on resources before actions; feedback focuses on outputs after actions; and concurrent monitors ongoing activities. Standards can be physical, cost-related, capital-related, revenue-related, intangible, goals, or strategic. Effective control systems are accurate, reasonable, timely, economical, flexible, understandable, emphasize exceptions, and use multiple criteria with corrective action. Control tools include information systems, financial tools like budgets and ratios, analytical tools, and traditional tools like reports.