Problem Solving
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 project report helper Active In SP Posts: 2,270 Joined: Sep 2010 07-10-2010, 12:13 PM   Lecture 02 - Problem Solving - 06.ppt (Size: 146 KB / Downloads: 55) Problem Solving INTRODUCTION TO PROBLEM SOLVING Engineers must analyze and solve a wide range of technical problems. Some will be reasonably simple single-solution problems. Others will be open-ended and will likely require a team of engineers from several disciplines. Some problems may have no clear solution. • PROBLEM SOLVING INVOLVES: – EXPERIENCE – KNOWLEDGE – PROCESS – ART FOCUS: Computer Assisted Problem Solving Computers are good tools for solving rule-based problems using decision rules THE ENGINEERING METHOD • RECOGNIZE AND UNDERSTAND THE PROBLEM • GATHER DATA (AND VERIFY ITS ACCURACY) • SELECT GUIDING THEORIES AND PRINCIPLES • MAKE ASSUMPTIONS WHEN NECESSARY • SOLVE THE PROBLEM • VERIFY THE RESULTS • PRESENT THE SOLUTION ENGINEERING PROBLEM TYPES • Create a new product – Invention/conceptualization – New/modified design of existing product • Cost reduction – Do it faster, cheaper, better – example: Personal computers • Develop or change a procedure – Example: Warehouse inventory -- Instead of having 3 month's inventory go to "just in time" • Human factors – Make our lives longer, better, easier – Examples: cruise control, moving sidewalks, management tools TYPES OF INFORMATION FOR PROBLEM SOLVING • GIVENS: The initial condition of the problem • OPERATIONS: The various actions we are allowed to perform • GOALS: The desired final condition of the problem • PROBLEM STATE: The state of the problem at any specific point in time • SOLUTION: Completely specified the GIVENS, OPERATIONS, GOALS, and succession of PROBLEM STATES to get to GOAL state STEPS IN PROBLEM SOLVING • IDENTIFY THE PROBLEM – YOU CAN’T FIX IT IF YOU DON’T KNOW WHAT IS BROKEN. – DETERMINE WHAT IS REQUIRED FOR THE SOLUTION – WHAT IS KNOWN? – WHAT IS UNKNOWN? – ANY RESTRICTIONS OR LIMITATIONS? – ANY SPECIAL CASES? • DEVELOP A STEP-BY-STEP PLAN (ALGORITHM). – HOW ARE YOU GOING TO FIX IT? – OUTLINE THE SOLUTION IN A LOGIC DIAGRAM • EXECUTE THE PLAN. – KEEP TRACK OF WHAT WORKS AND WHAT DOESN’T. • ANALYZE THE SOLUTION – REVISE THE PLAN AND RE-EXECUTE AS NEEDED. – KEEP THE GOOD PARTS OF THE PLAN AND ALTER THE NOT-SO-GOOD ONES. – REPORT / DOCUMENT THE RESULTS – LET YOUR BOSS KNOW HOW YOUR IDEA WORKED ( in a written report ).