Human Relations was the first approach to emphasize informal work relationships and worker satisfaction. build internal procedures and processes into operations to improve coordination efforts. O applied scientific methods to analyze work and determine how best to complete production tasks in an efficient manner in order to improve production efficiency structured, formal network of relationships among specialized positions; rules and regulations to standardize behavior and authority resides in positions not individuals; therefore organizations will realize efficiency and success by following established unbiased rules emphasizes perspective of senior managers and that management, as a profession, can be taught Organizational Behavior O organizations are successful when employees have the right tools, training, and knowledge to make products and services valued by customers. the application of quantitative analysis to management decisions and problems. the employee effectiveness is based on understanding the complex interplay of individual, group, and organizational processes. O organizations as open systems that depend on inputs from the external environment that need to be transformed into outputs that meet the market's needs for goods and services