Explanation the implementation barriers of JiT system using ISM approach and path analysis (Case Study: Gas Industry)

Just in Time (JiT) is a manufacturing/service system by initial goal of continues decreasing and finally the deleting of all of waste forms. Now, world class organizations are completely conformable about acceptation and implementation JiT manufacturing/service for improving of productivity and competition with competitors. Without doubt, JiT as the most strong of inventory management methodology is facing with barriers and problems. One of basic tasks of top management is identification and perception of relationship between the JiT barriers through decreasing of bad effects. Original goals of this paper are the studying of falconer barriers in successful implementation of JiT manufacturing/service in gas industry of Iran, and analyzing of reciprocal influences between barriers using interpretive structural modeling (ISM). For this purpose, the 12 barriers were identified by literature review and interview with experts. Then by distribution and gathering of 170 questioners and using statistical tests (Kolmogorov-Smirnov and mean), the main hypothesis of this research and 12 secondary hypotheses are confirmed. Also for answering to research main question (How is the relationship and sequence between barriers?), ISM approach is used, and the barriers placed in 7 Levels. Finally, the obtained structural model is confirmed using path analysis method (second order of the confirmatory factor analysis). To this order, a conceptual plan is proposed for presenting of practical program for competition by implementation barriers of JiT manufacturing/service system and improving of productivity.