In Figure 15.4, each pair of brackets on the time axis denotes the estimated starting and finishing of a job enclosed within it. The solid bars reflect the actual status or progress of the job. We are just finishing day 5. Gantt scheduling chart symbols: Job Day Day 1 Day Day Day Day Day Day 2 3 4 5 6 7 8 A Maintenance B C Now Gantt Scheduling Chart for Jobs A, B, and C at First Printing SOLUTION Start of an activity End of an activity Scheduled activity time allowed Actual work progress Nonproduction time Point in time when chart is reviewed