Work Measurement OM Spotlight: Work Measurement Activities in Roller Coaster Maintenance Time Study Methods OM Spotlight: Job Description— City of Phoenix, Arizona Operations Analyst for City of Phoenix, Arizona Predetermined Time Standard Methods Learning Curves Practical Issues in Using Learning Curves Solved Problems Key Terms and Concepts Questions for Review and Discussion Problems and Activities Cases Rehabilitation Hospital of Florida The State versus John Bracket Endnotes
SUPPLEMENTARY CHAPTER A
Work Measurement, Learning Curves, and Standards
Learning Objectives
• To understand the purpose of work measurement and methods that organizations use to perform time studies, calculate standard times, and estimate the proportion of time spent performing different types of tasks. • To understand the concept of learning curves and how they can affect business decisions, and to learn computational methods for estimating aggregate production times in learning environments.
A2
• “John Bracket has filed a lawsuit against us, George,” stated Paul Cumin, the vice president of operations for the State Rehabilitation Services Commission (SRSC). “George, you are Bracket’s manager. So what happened? He claims you raised his daily productivity quota for processing invoices from 200 to 300.” “Paul, I did raise his quota to more closely match the other employees. Bracket is always late for work, plays games on the computer, violates our dress code, and is generally disliked by his peer employees,” responded George Davis, Bracket’s immediate supervisor. “Is there any logic or numerical basis for your increasing his quota?” Paul asked him. As he left the room, George responded, “Paul, I’ll get my work study data out, review it, and get back to you this afternoon.”
• “Jim, it takes 2,000 hours to build each electrical generating turbine, so if we have to build ten, it takes 20,000 hours. We should plan our budget and price per generator based on