On the influence of interruptions in the jobs execution in project management

For the project management problems, formulated as optimization problems on the di-graph, the influence of allowing interruptions during the job execution on the solution op-timality was investigated. Constructed Gantt charts depicting the optimal distribution ofjobs between performers. Some possible scenarios of project development are considered.A comparative analysis of the results was carried out, depending on the interruptions'presence in the schedule. It is shown that allowing interruptions can improve the value ofthe objective function in cases where new performers join the project or the number of jobsincreases.