Schedule Volatility is a statistical measure of the constantly changing inputs and production schedules that is an unfortunate fact of the project facing most suppliers of both goods and services.
Reference Definition by Taskmanagementguide: Schedule Volatility is a situation when a schedule (a project or employee schedule) tends to change over the time due to different factors which add unpredictability. An example of schedule volatility is a variable work week length that is associated with part-time workers whose usual hours tend to vary from week to week (hence their income tends to vary as well). Schedule volatility is a type of schedule behaviour that excludes possibility of long-term planning as such a schedule is critically influenced by some factors which can be hardly predicted, or it is a schedule which updates often and regularly (let’s say weekly or monthly).
Related Definitions in the Project: The Project Schedule
