Integration of Constraint-Based Off-line and On-line Approaches to Project Scheduling

Solving a scheduling problem involves considerations of twofold nature: on one hand, the solution must be searched according to specific optimization needs (off-line requirements), while on the other hand, great effort should be employed into producing solutions which can be safely put into execution in unpredictable environments (on-line requirements). In many cases, these two classes of necessities hide mutually conflicting aspects. Aim of my work is to assess the possible integration of off-line and on-line procedures in project scheduling in order to find the best balance between the two, in view of the inherently dynamical utilization of each produced scheduling solution.