Industrial Engineering

Industrial engineering is a branch of engineering which deals with the optimization of complex processes or systems. 

According to the Institute of Industrial Engineers, they figure out how to do things better. 
They engineer processes and systems that improve quality and productivity Industrial engineers are the only engineering professionals trained specifically to be productivity and quality improvement specialists.

Motto Of Industrial Engineer that always in my mind...
" THERE IS NO BEST WAY BUT THERE IS A BETTER WAY"

yes... as industrial engineer, we must to to eliminate waste of time, money, materials, man-hours, machine time, energy and other resources that do not generate value. 

That's not easy if only us to do that..
Optimization system must do together..
   PLAN --> DO --> CHECK --> ACTION

The various topics concerning industrial engineers include:

• accounting: the measurement, processing and communication of financial information about economic entities
• operations research, also known as management science: discipline that deals with the application of advanced analytical methods to help make better decisions
• operations management: an area of management concerned with overseeing, designing, and controlling the process of production and redesigning business operations in the production of goods or services.
• project management: is the process and activity of planning, organizing, motivating, and controlling resources, procedures and protocols to achieve specific goals in scientific or daily problems.
• job design: the specification of contents, methods and relationship of jobs in order to satisfy technological and organizational requirements as well as the social and personal requirements of the job holder.
• financial engineering: the application of technical methods, especially from mathematical finance and computational finance, in the practice of finance
• management engineering: a specialized form of management that is concerned with the application of engineering principles to business practice
• supply chain management: the management of the flow of goods. It includes the movement and storage of raw materials, work-in-process inventory, and finished goods from point of origin to point of consumption.
• process engineering: design, operation, control, and optimization of chemical, physical, and biological processes.
• systems engineering: an interdisciplinary field of engineering that focuses on how to design and manage complex engineering systems over their life cycles.
• ergonomics: the practice of designing products, systems or processes to take proper account of the interaction between them and the people that use them.
• safety engineering: an engineering discipline which assures that engineered systems provide acceptable levels of safety.
• cost engineering: practice devoted to the management of project cost, involving such activities as cost- and control- estimating, which is cost control and cost forecasting, investment appraisal, and risk analysis.
• value engineering: a systematic method to improve the "value" of goods or products and services by using an examination of function.
• quality engineering: a way of preventing mistakes or defects in manufactured products and avoiding problems when delivering solutions or services to customers.
• Industrial plant configuration: sizing of necessary infrastructure used in support and maintenance of a given facility.
• facility management: an interdisciplinary field devoted to the coordination of space, infrastructure, people and organization
• engineering design process: formulation of a plan to help an engineer build a product with a specified performance goal.
• logistics: the management of the flow of goods between the point of origin and the point of consumption in order to meet some requirements, of customers or corporations.

Source :

https://en.wikipedia.org/wiki/Industrial_engineering