Industrial engineering

Industrial engineering
Name	Industrial engineering
Activity sector	Manufacturing, Service industry, Healthcare, Logistics
Competencies	Systems thinking, Mathematical optimization, Statistics, Human factors
Employment field	Corporations, Consulting, Government, Academia
Related occupation	Operations research, Systems engineering, Management science

Industrial engineering. It is an engineering profession that is concerned with the optimization of complex processes, systems, or organizations by developing, improving and implementing integrated systems of people, money, knowledge, information, equipment, energy and materials. The field draws upon specialized knowledge and skill in the mathematical, physical, and social sciences together with the principles and methods of engineering analysis and design to specify, predict, and evaluate the results to be obtained from such systems. Its underlying concepts overlap with disciplines like operations research, systems engineering, and management science.

Overview

The central focus is on eliminating waste of time, money, materials, energy, and other resources. Practitioners work to improve quality and productivity while ensuring worker safety and environmental sustainability. This involves a holistic, systems-level approach to problem-solving, integrating components from mechanical engineering, electrical engineering, and social sciences. Key figures in its philosophical development include Frederick Winslow Taylor, often called the father of scientific management, and Frank Bunker Gilbreth and Lillian Moller Gilbreth, pioneers in motion study and ergonomics. The discipline is applied across diverse sectors including automotive manufacturing, aerospace companies like Boeing, hospital systems such as the Mayo Clinic, and logistics giants like FedEx.

History

The origins are deeply rooted in the Industrial Revolution, which created a need to manage complex factory systems. Early systematic approaches to manufacturing were seen in the Arsenal of Venice and the production of muskets for the Continental Army. The formal birth is often traced to the late 19th and early 20th centuries with the work of Frederick Winslow Taylor and his principles of Scientific management, detailed in his book *The Principles of Scientific Management*. Contemporaries like Henry Ford implemented these ideas in the Ford Motor Company's moving assembly lines, revolutionizing mass production. The Hawthorne studies, conducted at the Western Electric plant, highlighted the importance of human relations. During World War II, the field expanded rapidly with the application of operations research techniques to complex military logistics problems by groups like the British Admiralty. The founding of the American Institute of Industrial Engineers in 1948 helped solidify it as a distinct engineering discipline.

Sub-disciplines and related fields

The field encompasses several specialized areas and intersects with many others. Manufacturing engineering focuses specifically on the application and design of production processes. Operations research employs advanced analytical methods like linear programming and simulation for optimal decision-making. Systems engineering ensures the successful integration of complex system components. Human factors and ergonomics concentrates on designing systems that account for human capabilities and limitations, a field advanced by the NASA space program. Supply chain management involves the coordination of material and information flow from suppliers to customers, critical for corporations like Walmart and Amazon. Other related areas include quality engineering, financial engineering, project management, and safety engineering.

Applications and methodologies

Practitioners use a wide array of tools and methodologies to analyze and improve systems. Lean manufacturing principles, derived from the Toyota Production System, aim to eliminate waste. Six Sigma, a methodology developed at Motorola and popularized by General Electric, uses statistical methods to reduce defects. Time and motion study, pioneered by the Gilbreths, analyzes work efficiency. Computer simulation models, using software like Arena or Simul8, allow for the testing of system designs before implementation. Facilities planning and material handling design optimize physical layouts, as seen in distribution centers for DHL. Other key methodologies include statistical process control, forecasting, production scheduling, and queuing theory.

Education and certification

University programs are typically offered at the bachelor's, master's, and doctoral levels, often through departments within colleges of engineering. Accredited programs in the United States must meet the standards set by ABET. The curriculum combines coursework in core engineering fundamentals, mathematics including calculus and probability, computer science, and specialized subjects like production planning and engineering economy. Many professionals pursue certification to demonstrate expertise. In the U.S., the Institute of Industrial and Systems Engineers awards the title of Certified Professional Engineer (PE). Other notable credentials include the Certified Supply Chain Professional from APICS and the Six Sigma Black Belt certification.

Professional organizations

Several societies support professionals, advance the body of knowledge, and set ethical standards. The primary global organization is the Institute of Industrial and Systems Engineers. Other significant bodies include the American Society of Mechanical Engineers, which has relevant technical divisions, and the Human Factors and Ergonomics Society. Internationally, important organizations are the International Federation of Operational Research Societies and the European Federation of National Engineering Associations. These groups host conferences, such as the IISE Annual Conference, publish journals like *IIE Transactions*, and provide continuing education and networking opportunities for members working at organizations ranging from Intel to the National Health Service.

Category:Engineering disciplines Category:Industrial engineering