
   Andrey 
   Nikolaevich 
   Kolmogorov
1903-1987, Tambov, Russia
   Father 
   
      of 
   
      modern 
   
      probability
   "Every 
   mathematician 
   believes 
   he 
   is 
   ahead 
   over 
   all 
   others. 
   The 
   reason 
   why 
   they 
   don't 
   say 
   this 
   in 
   public, 
   is 
   because 
   they 
   are 
   intelligent 
   people"
In 1922 Kolmogorov constructed a Fourier series that diverges almo st everywhere, gaining international recognition. In 1925, he published his famous work in intuitionistic logic on the principle of the excluded middle. In 1929 Kolmogorov earned his Doctor of Philosophy degree, Ph.D., at the Moscow State University. His pioneering work About the Analytical Methods of Probability Theory was published (in German) in 1931. Also in 1931, he became a professor at Moscow University. In 1933, Kolmogorov published the book, 
   Foundations 
   of 
   the 
   Theory 
   of 
   Probability, laying the modern axiomatic foundations of probability theory. In 1939, he was elected a full member of the USSR Academy of Sciences. Around the same years (1936) Kolmogorov contributed to the field of ecology and generalized the Lotka-Volterra model of predator-prey systems.
In his study of stochastic processes (random processes), especially Markov processes, Kolmogorov and the British mathematician Sydney Chapman independently developed the pivotal set of equations in the field, the Chapman–Kolmogorov equations. Later o n, Kolmogorov changed his research interests to the area of turbulence, where his publications beginning in 1941 had a significant influence on the field.
Kolmogorov died in Moscow in 1987."
   
 
   William 
   Edwards 
   Deming
1900-1993, Washington, D.C, USA
   "The 
   only 
   useful 
   function 
   of 
   a 
   statistician 
   is 
   to 
   make 
   predictions 
   and 
   thus 
   to 
   provide 
   a 
   basis 
   for 
   action"
Deming was a pioneer of quality control. He was voted by business staff of the Los Angeles Times as being one of the 50 most influential business people of the century, though he described himself as 'Consultant in Statistical Studies'.
He studied electrical engineering at University of Wyoming, graduating in 1921. As a summer job he worked for the Western Electric Company in Chicago where he encountered Shewhart's work on quality control. He obtained his MS in mathematics and mathematical physics from University of Colorado in 1925 and his PhD from Yale University in 1928. He began working first for the US Department of Agriculture and then for the US Bureau of the Census. In 1947 he spent three months in Japan
helping with the Japanese census. On his return to Japan in 1950 he gave an extended course in quality control; the course was so successful and influential that he was invited back on many occasions, being received by Emperor Hirohito and awarded the Second Order of the Sacred Treasure. He was President of the IMS in 1945. In 1955 he was awarded the Shewhart Medal of the ASQ, in 1983 the Wilks Award of the ASA, and in 1987 the National Medal for Technology.
Deming's advocacy of the 
   Plan-Do-Check-Act cycle, his 14 key principles for management for transforming business effectiveness, and Seven Deadly Diseases have had tremendous influence outside of manufacturing and have been applied in other arenas, such as in the relatively new field of sales process engineering.
   
    
   
Frederick 
Winslow 
Taylor
1856-1915, Philadelphia, Pennsylvania, USA
   Father 
   
      of 
   
      Scientific 
   
      Management "It 
   
      is 
   
      not 
   
      a 
   
      question 
   
      of 
   
      producing 
   
      physical 
   
      changes, 
   
      but 
   
      rather 
   
      of 
   
      working 
   
      a 
   
      great 
   
      mental 
   
      revolution 
   
      in 
   
      large 
   
      numbers 
   
      of 
   
      men, 
   
      and 
   
      any 
   
      such 
   
      change 
   
      demands 
   
      time, 
   
      and 
   
      a 
   
      large 
   
      amount 
   
      of 
   
      time." 
U.S. inventor and engineer, the founder of modern 'Time Study. He introduced time- and-motion study in order to systematize shop management and reduce manufacturing costs. Taylor proposed that the work of each employee be planned out by the Management at least one day in advance. Taylor's attempt to create new ways of thinking and acting was one of his most significant contributions to the growing science of management. Much of the debate surrounding the adoption of Taylor's methods disappeared after the 1920s, but the method continued. The disappearance of the debate reveals a widespread acceptance of much of the power and authority that Taylorism had constructed. The pressures of World War II, in fact, drove wider acceptance of scientific management and made Taylorism one of the most significant aspects of American (and much of the rest of the world's) social organization - connecting people through work and uniting their viewpoints around the  perspective of efficient production.
Taylor died in 1915 at the age of 59.
His methods would be tried and applied to an endless range of activities, including education, military discipline, home economics, ergonomics, and medicine.
   
   
   George 
   Bernard 
   Dantzig
1914-2005, USA
   Development 
   
      of 
   
      the 
   
      Simplex 
   
      Algorithm
American statistician George Bernard Dantzig affected the world enormously with the mathematical discovery of the Simplex Method. Devised by Dantzig in the late 1940s, this mathematical formula, or algorithm, is used by industry and governments to identify the best possible solutions to problems with many variables. The Simplex Method is useable in calculations that involve resource allocation, worker scheduling, and production planning. Airlines use the algorithm to coordinate routes for commercial flights and governments use it to schedule refuse collection. In addition, the Simplex Method is embedded on most computers through spreadsheet programs.
Dantzig also worked as an applied mathematics and statistics professor, producing more than 50 doctoral students, many of whom became leaders in their fields. Colleagues and former students remember Dantzig as a well-rounded thinker who was concerned not only with mathematical challenges but also with solving political, economic and household problems. Writing in OR/MS Today, former Dantzig student Mukund Thapa, who traveled from India to study at Stanford under Dantzig, said "the best times in my life were interactions with George." Thapa said Dantzig treated everyone as an old friend. Thapa recalled that Dantzig once worried that he was bothering the renters below him so he cut open some tennis balls and placed them on the legs of the tables and chairs in his dining room so as not to disturb the downstairs neighbors.
   
   
   Henry 
   Laurence 
   Gantt
1861-1919, Calvert County, Maryland, USA
   Developing 
   
      the 
   
      Gantt 
   
      Chart
Developed simple graphs that would measure performance while visually showing projected schedules. These Gantt Charts were employed on major infrastructure projects including the Hoover dam and interstate highway system and continue to be an important tool in project management. Invented a Wage Payment system that rewarded workers for above-standard performance, eliminated any penalty for failure, and offered the boss a bonus for every worker who performed above standard. Emphasized Human Relations and promoted Scientific Management as more than an inhuman 'speed up' of labor.
The Gantt chart is still accepted as an important management tool today, it provides a graphic schedule for the planning and controlling of work, and recording progress towards stages of a project. The chart has a modern variation, Program Evaluation and Review Technique (PERT). Industrial Efficiency: Industrial efficiency can only be produced by the application of scientific analysis to all aspects of the work in progress. The industrial management role is to improve the system by eliminating chance and accidents. The Task and Bonus System: He linked the bonus paid to managers to how well they taught their employees to improve performance. The social responsibility of business: He believed that businesses have obligations to the welfare of the society in which they operate.
   
   
   Lotfi 
   Asker 
   Zadeh
1921 (alive), Baku, Azerbaijan
   Founder 
   
      of 
   
      Fuzzy 
   
      Mathematics, 
   
      Fuzzy 
   
      Set 
   
      Theory, 
   
      and 
   
      Fuzzy 
   
      Logic
   IEEE 
   Medal 
   of 
   Honor, 
   ACM 
   (Association 
   for 
   Computing 
   Machinery) 
   fellow
Better known as Lotfi A. Zadeh, is a mathematician, electrical engineer, computer scientist, and a professor of computer science at the University of California, Berkeley. Zadeh was born in Baku, Azerbaijan, to an Iranian Azeri father from Ardabil, Rahim Aleskerzade, who was a journalist o n assignment from Iran, and a Russian Jewish mother, Fanya Koriman, who was a pediatrician, Zadeh is quoted as stating: "The question really isn't whether I'm American, Russian, Iranian, Azerbaijani, or anything else. I've been shaped by all these people and cultures and I feel quite comfortable among all of them". Zadeh also notes in the same interview from which the above quote is taken: "Obstinacy and tenacity. Not being afraid to get embroiled in controversy. That's very much a Turkish tradition. That's part of my character, too. I can be very stubborn. That's probably  been beneficial for the development of Fuzzy Logic. ―Because of the importance of the relaxation of Aristotelian logic, which opens up applicability of rational methods to the majority of practical situations without dichotomous truth values, Zadeh is one of the most referenced authors in the fields of applied mathematics and computer science, but his contributions are not limited to fuzzy sets and systems. Zadeh taught for ten years at Columbia University, was promoted to full professor in 1957, and has taught at the University of California, Berkeley since 1959. He published his seminal work on fuzzy sets in 1965, in which he detailed the mathematics of fuzzy set theory. In 1973 he proposed his theory of fuzzy logic.
   
    
 
   Peter 
   L. 
   Hammer
1936-2006, Timisoara, Romania
   The 
   
      father 
   
      of 
   
      the 
   
      Boolean 
   
      Function 
   
      Theory 
He was one of the most influential researchers in the fields of Operations Research and Discrete Applied Mathematics. He made numerous major contributions to these fields, launching several new research directions. His results influenced hundreds of colleagues in discrete mathematics and operations research, and made a lasting impact on several areas, including binary optimization and algorithmic graph theory.
His landmark book on 
   Boolean 
   Methods 
   in 
   Operations 
   Research 
   and 
   Related 
   Areas (co-authored with S. Rudeanu, 1968) founded the new area of pseudo -Boolean optimization. His systematic approach to study the combinatorial structure of Boolean functions, and their role in and relationship to optimization problems developed a whole new 
   Theory 
   of 
   Boolean 
   Functions (a book about this field, co -edited and co-authored with Y. Crama). He applied in novel ways Boolean techniques to other areas, including graph theory, integer programming, data analysis, and so forth. His application of such
Boolean techniques to data analysis proved to be particularly novel and effective. The technique, called Logical Analysis of Data (LAD), was successfully applied to several real-life data analysis problems, including in the last few years numerous
medical datasets. One of his final lectures was entitled "Why not to turn 70" and subtitled "Problems left for my second and third lives". This exemplified not only his humor, but also his relentless energy.
   
 
 
 
   Thomas 
   L. 
   Saaty
Born in 1926 (alive), Mosul, Iraq
   Developer 
   
      of 
   
      AHP 
   
      (Analytic 
   
      Hierarchy 
   
      Process) 
   
      method 
   
      in 
   
      decision 
   
      making 
American mathematician who is a Distinguished University Professor at the University of Pittsburgh, where he teaches in the Joseph M. Katz Graduate School of Business. He is the inventor, architect, and primary theoretician of the Analytic Hierarchy
Process, a decision-making framework used for large-scale, multiparty,multi-criteria decision analysis, and of the Analytic Network Process, its generalization to decisions with dependence and feedback. Dr. Saaty has made contributions in the fields of operations research (parametric li near programming, epidemics and the spread of biological agents, queuing theory, and behavioral mathematics as it relates to operations), arms control and disarmament, and urban design. He has written more than 30 books and 300 papers on mathematics, operations research, and decision making. Their subjects include graph
theory and its applications, nonlinear mathematics, analytical planning, and game theory and conflict resolution.In 2008, he received the INFORMS Impact Prize for his development of the Analytic Hierarchy Process. The Impact Prize is awarded
every two years to recognize contributions that have had a broad impact on the fields of operations research and the management sciences. Emphasis is placed on the breadth of the impact of an idea or body of research.
 
   Maximilian 
   Carl 
   Emil 
   Weber
1864 – 1920, Germany 
   German 
   
      political 
   
      sociologist, 
   
      one 
   
      of 
   
      the 
   
      founders 
   
      of 
   
      modern 
   
      study 
   
      of 
   
      sociology 
   
      and 
   
      public 
   
      administration
He began his career at the University of Berlin, and later worked at the universities of Freiburg, Heidelberg, and Munich.
Weber's major works deal with rationalization in sociology of religion and government. His most famous work is his essay The Protestant Ethic and the Spirit of Capitalism, which began his work in the sociology of religion. In this work, Weber argued that religion was one of the non-exclusive reasons for the different ways the cultures of the Occident and the Orient have developed, and stressed importance of particular characteristics of ascetic Protestantism which led to the development of capitalism, bureaucracy and the rational- legal state in the West. In another major work,Politics as a Vocation, Weber defined the state as an entity which claims a monopoly on the legitimate use of physical force, a definition that became pivotal to the study of modern Western political science. His analysis of bureaucracy in his Economy and Society is still central to the modern study of organizations. His most known contributions are often referred to as the 'Weber Thesis' His most valued contributions to the field of economics are his famous work, 
   The 
   Protestant 
   Ethic and the 
   Spirit 
   of 
   Capitalism. This is a seminal essay on the differences between religions and the relative wealth of their followers. 
   
    
    
    
 
   Richard 
   Muther 
Born in 1913 (alive), Newton, Massachusetts, USA 
   Father 
   
      of 
   
      Systematic 
   
      Planning
   Developed 
   
      many 
   
      basic 
   
      techniques 
   
      used 
   
      in 
   
      Plant 
   
      Layout, 
   
      Material 
   
      Handling, 
   
      and 
   
      other 
   
      aspects 
   
      of 
   
      Industrial 
   
      Engineering
He was the original developer of relationship chart (REL-CHART) and its companion space-relationship diagram. This tool is the basis for many other techniques which are used to optimize the proximity of related functions and minimize unnecessary transportation in industrial facilities. He also created the Mag Count method of measuring the difficulty of handling transporting) any solid material prior to knowing how it will be moved. He developed the industry-standard color code used to classify industrial space and the related type-of-work symbols. Corresponding black-and-white hatch patterns based on the heraldic tincture code are also part of his methodology. He is currently writing revolutionary book on planning virtual anything with Shekar Natarajan. 
   
    
 
   Henry 
   Ford 
1863 –1947, U.S.A 
   The 
   
      American 
   
      founder 
   
      of 
   
      the 
   
      Ford 
   
      Motor 
   
      Company 
   
      and 
   
      father 
   
      of 
   
      modern 
   
      assembly 
   
      lines 
   
      used 
   
      in 
   
      mass 
   
      production
His introduction of the Model T automobile revolutionized transportation and American industry. He was a prolific inventor and was awarded 161 U.S. patents. As owner of the Ford Motor Company, he became one of the richest and best-known people in the world. He is credited with "Fordism", that is, the mass production of large numbers of inexpensive automobiles using the assembly line, coupled with high wages for his workers. Ford had a global vision, with consumerism as the key to peace. Ford did not believe in accountants; he amassed one of the world's largest fortunes without ever having his company audited under his administration.Henry Ford's intense commitment to lowering costs resulted in many technical and business innovations, including a franchise system that put a dealership in every city in North America, and in major cities on six continents. Ford left most of his vast wealth to the Ford Foundation but arranged for his family to control the company permanently. 
   
    
   
   Agner 
   Krarup 
   Erlang 
1878 – 1929, Denmark 
   Danish 
   
      mathematician, 
   
      statistician 
   
      and 
   
      engineer, 
   
      who 
   
      invented 
   
      Queuing 
   
      Theory 
   
      and 
   
      the 
   
      fields 
   
      of 
   
      traffic 
   
      engineering
Erlang created the field of telephone networks analysis. His early work in scrutinizing the use of local, exchange and trunk telephone line usage in a small community, to understand the theoretical requirements of an efficient network led to the creation of the Erlang formula, which became a foundational element of present day telecommunication network studies. While working for the CTC, Erlang was presented with the classic problem of determining how many circuits were needed to provide an acceptable telephone service. His thinking went further by finding how many telephone operators were needed to handle a given volume of calls. Most telephone exchanges then used human operators and cord boards to switch telephone calls by means of jack plugs. Out of necessity, Erlang was a hands-on researcher. He would conduct measurements and was prepared to climb into street manholes to do so. He was also an expert in the history and calculation of the numerical tables of mathematical functions, particularly logarithms. He devised new calculation methods for certain forms of tables.
   
    
 
   Alan 
   B. 
   Pritsker 
1933—2000, USA 
   One 
   
      of 
   
      the 
   
      founders 
   
      of 
   
      the 
   
      field 
   
      of 
   
      Computer 
   
      Simulation
American engineer, pioneer in the field of Operations research, and one of the founders of the field of Computer Simulation Over the course of a fifty-five-year career, he made numerous contributions to the field of Simulation and to the larger fields of Industrial Engineering and Operations Research. In March 2001 an article entitled "Alan Pritsker's Multifaceted Career: Theory, Practice, Education, Entrepreneurship, and Service " appeared in a special issue of IIE Transactions honoring Alan Pritsker for his numerous contributions to the profession over five decades. Another prominent aspect of Alan Pritsker's contributions to the growth of the field of simulation was his role in founding and leading several commercial enterprises dedicated to the development and dissemination of simulation technology. Alan Pritsker's service to the profession spanned a broad range of activities sustained over four decades. Perhaps his most prominent contributions in service were made through his leadership of the Winter Simulation Conference (WSC). He served as a member of the WSC Board of Directors representing AIIE from 1970 to 1973. He also served on the WSC Board of Directors representing TIMS–College on Simulation and Gaming from 1981 to 1987; and he served as Board Chair from 1984 to 1985.
 
 
   Taiichi 
   Ohno 
1912 – 1990, Japan 
   Father 
   
      of 
   
      the 
   
      Toyota 
   
      Production 
   
      System 
Prominent Japanese businessman. He is considered to be the father of the Toyota Production System, which became Lean Manufacturing in the U.S. He wrote several books about the system, the most popular of which is 
   Toyota 
   Production 
   System: 
   Beyond 
   Large-Scale 
   Production. Born in Dalian, China, and a graduate of the Nagoya Technical High School (Japan), he was an employee first of the Toyoda family's Toyoda Spinning, moved to the motor company in 1943, and gradually rose through the ranks to become an executive. In what is considered to be a slight, possibly because he spoke publicly about the production system, he was denied the normal executive track and was sent instead to consult with suppliers in his later career. Ohno's principles influenced areas outside of manufacturing, and have been extended into the service arena. For example, the field of sales process engineering has shown how the concept of Just in Time (JIT) can improve sales, marketing, and customer service processes. 
   
    
   
   Shigeo 
   Shingo 
1909-1990, Japan 
   Distinguished 
   
      himself 
   
      as 
   
      one 
   
      of 
   
      the 
   
      world's 
   
      leading 
   
      experts 
   
      on 
   
      Manufacturing
   Practices 
   
      and 
   
      the 
   
      Toyota 
   
      Production 
   
      System.
Shingo invented the Toyota Production System, he did document the system and added two words to the Japanese and English languages—Poka-yoke (mistake-proofing, not 'fool-proofing', which Shingo rejected as a term) and single-minute exchange of dies (SMED) Shingo's influence extended into fields outside of manufacturing. For example, his concepts of SMED, mistake-proofing, and "zero quality control" (eliminating the need for inspection of results) have all been applied in the field of sales process engineering.
   
   

   Lillian 
   Gilbreth 
   (1878 
   – 
   1972), 
   USA
   First 
   
      female 
   
       professor 
   
      in 
   
      the 
   
      engineering 
   
       school
   Mother 
   
      of 
   
      Modern 
   
      Management
   Frank 
   Gilbreth 
   (1868-1924), 
    USA
   Known 
   
      for 
   
      his 
   
      work 
   
      on 
   
      the 
   
      efficiency 
   
       of 
   
      motion. 
   
      He 
   
      developed 
   
       many 
   
      of 
   
      the 
   
      concepts 
   
       and 
   
      applications 
   
      that 
   
      are 
   
      now 
   
      part 
   
      of 
   
      modern 
   
      management 
   
      techniques
   Founders 
   
       of 
   
      the 
   
      modern 
   
      Motion 
   
      Study 
   
      technique, 
   
      which 
   
      may 
   
      be 
   
      defined 
   
      as 
   
      the 
   
      study 
   
      of 
   
      the 
   
      body 
   
      motions 
   
      used 
   
      in 
   
      performing 
   
       an 
   
      operation, 
   
      to 
   
      improve 
   
       the operation 
   
       by 
   
      eliminating 
   
       unnecessary 
   
      motions, 
   
       simplifying 
   
       necessary 
   
      motions, 
   
      and 
   
      then 
   
      establishing 
   
       the 
   
      most 
   
      favorable 
   
       motion 
   
      sequence 
   
      for 
   
      maximum 
   
       efficiency.
They studied body motions  to increase production,  reduce fatigue,  and instruct operators in the best method of performing an operation.  They developed the technique of filming  motions to study them, in a technique known  as Micro-Motion Study.Additionally,  they developed the Cycle graphic analysis  and Chronocyclegraphic   Analysis  techniques for studying the motion paths made by an operator. Although  the work of the Gilbreths  is often associated with that of Frederick Winslow Taylor,  there was a substantial philosophical  difference between the Gilbreths  and Taylor.  The symbol of Taylorism  was the stopwatch;  Taylor was primarily  concerned with reducing process times. The Gilbreths, on the other hand, sought to make processes more efficient by reducing the motions involved.  They saw their approach as more concerned with workers'  welfare than Taylorism,  which workers themselves often perceived as primarily  concerned with profit. This difference led to a personal rift between Taylor  and the Gilbreths which, after Taylor's  death, turned into a feud between the Gilbreths  and Taylor's  followers.  After Frank's  death, Lillian  Gilbreth took steps to heal the rift (Price 1990); however, some friction  remains over questions of history and intellectual  property. Frank Gilbreth,  who never went to college, was interested in efficiency in the workplace.  His enthusiasm  for the subject was contagious.  Frank and Lillian  together began their study of scientific  management principles. Frank started a consulting  business and Lillian  worked at his side. But where Frank was concerned with the technical aspects of worker efficiency, Lillian  was concerned with the human aspects of time management. Her ideas were not widely adopted during her lifetime, but they indicated the direction that modern Management would  take. She recognized that workers are motivated by indirect incentives (among which she included money) and direct incentives, such as job satisfaction. 
Her work with Frank helped create job standardization,  incentive wage -plans,  and job simplification.  Finally,  she was among the first to recognize the effects of fatigue and stress on time management.