Can scheduling systems deal with variable shop times, breakdown of equipment, changing requirements, and other uncertainties, or do the schedules become unmanageable?

Yes,  scheduling systems can deal with variable shop times, breakdown of equipment, changing requirements, and other uncertainties

Explanation:

Yes,  scheduling systems can deal with variable shop times, breakdown of equipment, changing requirements, and other uncertainties because is a

Computerized scheduling systems are a method of using scheduling algorithms and rules to help multiple people manage appointments and meetings. Computerized scheduling allows users to publicly share free time on their calendars, while keeping specific appointments private.

Consequently, Business scheduling is the process of creating formal plans to structure complex projects. Scheduling tools work for everyday tasks, such as scheduling work shifts or order placements, or for large projects, such as reorganizing functional departments or building new facilities.

1   b) the use of non-standard grammar  

2   a) quiet and shy.

i think it is sales-oriented, but i am not sure