Structuring the Search for the Problem
Trego و Kepner روشي براي تحليل مسايل به‌منظور دستيابي به راه‌حل‌هاي مناسب
Trego و Kepner روشي براي تحليل مسايل به‌منظور دستيابي به راه‌حل‌هاي مناسب در سال 1981 توسعه يافته است. اين روش سيستماتيك در چهار مرحله توسعه مي‌يابد و در حل مسايل مهندسي كارآمدي خود را اثبات كرده است.
Trego و Kepner Situation analysis (SA) تحليل وضعيت Problem analysis (PA) تحليل مسئله Decision analysis (DA) تحليل تصميم Potential problem analysis (PPA) تحليل قابليت توسعه مسئله
تحليل وضعيت تشخيص مشكلات و ابعاد مسئله مسئله را بايد از ابعاد مختلف بررسي كرد و از هر جنبه، سطح و عمق آن را تشخيص داد. تشخيص و شناسايي مسئله از سه بعد انجام مي‌شود. اولويت (درجه اهمیت از نظر نوبت رسیدگی) روند (افزایشی یا کاهشی) تاثيرات (مشکلات دیگری را می‌تواند ایجاد کند)
تحليل وضعيت در يك حادثه مخزن آب موضوع مورد بررسي اجزاي موضوع اولويت روند تاثيرات Painters Scaffolding collapse Paint fumes Open feedpipe Air hoods not worn Lack of communication Inadequate training M H L Rescuers 1-Limited access to tank 2-Weather conditions a. Climbing hazardous b. Machinery limited c. Fatigue 3-Paint Fumes a. Limited lighting b. Unconsciousness 4-Other tank conditions a. Blinding b. Noise (fans) c. Open feeder pipe d. Slippery paint 5-Training preparedness H = High level of concern/urgency; M = Moderate level of concern/urgency;L=Low
تحليل مسئله What is the problem (and what is it not?) When did the problem occur (and when did it not occur)? Where did the problem occur (and where did it not occur)? What is the extent of the problem (number, degree, etc.)?
تحليل مسئله Consideration Is Is not Distinction Cause of distinction identity What is the problem? What is NOT the problem? What is different between "is" and "is not"? Why? Location Where is problem found? Where is problem NOT found? What is the difference in locations? Timing When did problem occur? When did problem NOT occur? What is different in timings? Magnitude How much? How many? How extensive? How little? How localized? What distinguishes the affected and non-affected elements?
تحليل مسئله