Overview

Two appendices on work sampling, Apps. G and H, contain the reports of actual studies. This type of productivity study is the primary measure of planning and scheduling effectiveness. Consultants typically conduct work sampling studies. Both example studies contain complete procedures for conducting an in-house study. Appendix G shows a streamlined, simple study requiring a minimum of effort. Appendix H contains a more traditional study with many more measurement observations. The traditional study contains a section validating the accuracy of streamlined studies.

This appendix includes the details, results, and analysis of an actual wrench time study, and a procedure for doing an in-house study without the need for a consultant. This appendix is a full-blown study that analyzes work, making an exhaustive number of comparisons. The preceding ministudy, App. G, did not contain enough observations to make such analysis. However, such a ministudy adequately establishes a measure of the so-called wrench or direct work time of a group of craftpersons for improving a planning and scheduling operation.

( Note: Although this is a copy of an actual work sampling study, the names have been changed. Minor areas have also been altered to clarify peculiar company jargon, and further notes have been inserted to call attention to particular details.)