Chapter 8 supplement, work measurement. In this supplement, you will learn about time studies and work sampling. Work measurement is determining how long it takes to do a job. Managing human resources requires managers to know how much work employees can do during a specific period. | Supplement 8-1 Robert S. Russell, Bernard W. Taylor III, Ignacio Castillo, Navneet Vidyarthi CHAPTER 8 SUPPLEMENT Work Measurement OPERATIONS MANAGEMENT: Creating Value Along the Supply Chain, Canadian Edition 1 Lecture Outline Time Studies Work Sampling Supplement 8-2 2 Work Measurement Determining how long it takes to do a job Growing importance in service sector Services tend to be labor-intensive Service jobs are often repetitive Time studies Standard time time for average worker to perform a job once Incentive piece-rate wage system based on time study Supplement 8-3 3 Stopwatch Time Study - Steps Establish standard job method Break down job into elements Study job Rate worker’s performance (RF) Compute average time (t) Supplement 8-4 4 Stopwatch Time Study - Steps Compute normal time Compute standard time Supplement 8-5 Normal Cycle Time = NT = Nt Normal Time = (Elemental average) x (rating factor) Nt = (t )(RF) ST = (NT)(1 + AF) Standard Time = (normal cycle time) x (1 + . | Supplement 8-1 Robert S. Russell, Bernard W. Taylor III, Ignacio Castillo, Navneet Vidyarthi CHAPTER 8 SUPPLEMENT Work Measurement OPERATIONS MANAGEMENT: Creating Value Along the Supply Chain, Canadian Edition 1 Lecture Outline Time Studies Work Sampling Supplement 8-2 2 Work Measurement Determining how long it takes to do a job Growing importance in service sector Services tend to be labor-intensive Service jobs are often repetitive Time studies Standard time time for average worker to perform a job once Incentive piece-rate wage system based on time study Supplement 8-3 3 Stopwatch Time Study - Steps Establish standard job method Break down job into elements Study job Rate worker’s performance (RF) Compute average time (t) Supplement 8-4 4 Stopwatch Time Study - Steps Compute normal time Compute standard time Supplement 8-5 Normal Cycle Time = NT = Nt Normal Time = (Elemental average) x (rating factor) Nt = (t )(RF) ST = (NT)(1 + AF) Standard Time = (normal cycle time) x (1 + allowance factor) 5 Performing a Time Study Supplement 8-6 Time Study Observation Sheet Identification of operation Sandwich Assembly Date 5/17 Operator Approval Observer Smith Jones Russell Cycles Summary 1 2 3 4 5 6 7 8 9 10 t Nt RF t Place ham, cheese, and lettuce on bread 1 2 3 4 Grasp and lay out bread slices Spread mayonnaise on both slices Place top on sandwich, Slice, and stack t t t t R R R R .11 .44 .79 .04 .05 .05 .04 .06 .05 .06 .06 .07 .05 .53 .053 .056 .04 .38 .72 .07 .06 .07 .08 .08 .08 .07 .07 .10 .09 .77 .077 .077 .11 .12 .14 .12 .12 .13 .13 .13 .14 .14 .141 .93 .23 .55 .12 .10 .08 .09 .12 .10 .11 .11 .10 .10 .113 .33 .67 6 Performing a Time Study Supplement 8-7 Normal time = (Elemental average)(rating factor) Nt = ( t )(RF) = ()() = Normal Cycle Time = NT = Nt = ST =
