Planning is the fundamental management function that involves deciding objectives and developing courses of action to achieve objectives. It helps organizations prepare for the future. There are three types of planning: strategic planning sets long-term goals, tactical planning supports strategic plans at lower levels, and operational planning focuses on day-to-day procedures. The planning process involves establishing objectives, identifying alternatives, evaluating alternatives, selecting plans, formulating supporting plans, and establishing activity sequences. Barriers to effective planning include lack of leadership, excessive distractions, lack of proper systems, limited resources, and inadequate funding. Forecasting uses past and present data to predict future economic conditions and helps businesses plan for uncertainty.