OD interventions are structured programs aimed at solving organizational problems and helping organizations achieve their goals. They can address various aspects like processes, performance, skills, technology, and retention. Interventions can be designed for individuals, groups, or entire organizations. The OD process involves establishing the need for intervention, diagnosing issues, designing interventions, managing change, and evaluating results. Common interventions include training, coaching, role analysis, and organizational strategies like self-managed work teams or quality circles.