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Human Performance Technology (HPT), also known as Human Performance Improvement (HPI), is a field of study related to Process Improvement methodologies such as: Lean, Six Sigma, Lean Six Sigma, Organization Development, Motivation, Instructional technology, Human Factors, learning, performance support systems, knowledge management, and training. It is focused on improving performance at the societal, organizational, process and individual performer levels.
HPT "uses a wide range of interventions that are drawn from many other disciplines, including total quality management, process improvement, behavioral psychology, instructional systems design, organizational development, and human resources management" (ISPI, 2007). It stresses a rigorous analysis of requirements at the societal, organizational process and individual levels as appropriate to identify the causes for performance gaps, provide appropriate interventions to improve and sustain performance, and finally to evaluate the results against the requirements.
The field of HPT, also referred to as Performance Improvement, emerged from the fields of educational technology and instructional technology in the 1950s and 1960s. In the post war period, application of the Instructional Systems Design (ISD) model was not consistently returning the desired improvements to organizational performance. This led the emergence of HPT as a separate field from ISD in the late 1960s to early 1970s when the National Society for Programmed Instruction was renamed the National Society for Performance and Instruction (NSPI) and then again to the International Society for Performance Improvement (ISPI) in 1995. (Chyung, 2008) HPT evolved as a systemic and systematic approach to address complex types of performance issues and to assist in the proper diagnosis and implementation of solutions to close performance gaps among individuals.
The origins of HPT can be primarily traced back to the work of Thomas Gilbert, Geary Rummler, Karen Brethower, Roger Kaufman, Bob Mager, Donald Tosti, Lloyd Homme and Joe Harless. They (Gilbert and Rummler in particular) were the pioneers of the field. Any serious investigation of early and later citations of Gilbert and Rummler's work will reveal subsequent academic and professional leaders in the field.
HPT professionals work in many different performance settings such as corporate, educational institutions, and the military (Bolin, 2007).
The International Society for Performance Improvement defines HPT as:
"a systematic approach to improving productivity and competence, uses a set of methods and procedures -- and a strategy for solving problems -- for realizing opportunities related to the performance of people. More specific, it is a process of selection, analysis, design, development, implementation, and evaluation of programs to most cost-effectively influence human behavior and accomplishment. It is a systematic combination of three fundamental processes: performance analysis, cause analysis, and intervention selection, and can be applied to individuals, small groups, and large organizations."(ISPI, 2012)
A simpler definition of HPT is a systematic approach to improving individual and organizational performance (Pershing, 2006).
A common misunderstanding of the word technology with regards to HPT is that it relates to information technologies. In HPT, technology refers to the specialized aspects of the field of Human Performance. Technology: the application of scientific knowledge for practical purposes, esp. in industry. A branch of knowledge dealing with engineering or applied science.
The International Society for Performance Improvement has developed a glossary of HPT related terms.
An HPT Model is available for viewing at the ispi.org  website.
The International Society for Performance Improvement (ISPI) codified a series of Standards in an effort to raise the quality of HPT practice: