List of scheduling criteria

Min-max type (minimize the maximum value):

• Cmax(solution) - minimize makespan or maximum completion time of the solution
• Emax(solution) - minimize maximum earliness of the solution
• Fmax(solution) - minimize maximum flowtime of the solution
• Lmax(solution) - minimize maximum lateness of the solution
• Tmax(solution) - minimize maximum tardiness of the solution
• WjCmax(solution) - minimize weighted makespan or maximum completion time of the solution
• WjEmax(solution) - minimize weighted maximum earliness of the solution
• WjFmax(solution) - minimize weighted maximum flowtime of the solution
• WjLmax(solution) - minimize weighted maximum lateness of the solution
• WjTmax(solution) - minimize weighted maximum tardiness of the solution

Min-sum type (minimize the sum of a value):

• SumCj(solution) - minimize the sum of the completion times of the jobs in solution
• SumEj(solution) - minimize the sum of the earliness of the jobs in solution
• SumFj(solution) - minimize the sum of the flowtime of the jobs in solution
• SumLj(solution) - minimize the sum of the lateness of the jobs in solution
• SumTj(solution) - minimize the sum of the tardiness of the jobs in solution
• SumUj(solution) - minimize the sum of the tardy jobs in solution
• SumWjCj(solution) - minimize the sum of the weighted completion times of the jobs in solution
• SumWjEj(solution) - minimize the sum of the weighted earliness of the jobs in solution
• SumWjFj(solution) - minimize the sum of the weighted flowtime of the jobs in solution
• SumWjLj(solution) - minimize the sum of the weighted lateness of the jobs in solution
• SumWjTj(solution) - minimize the sum of the weighted tardiness of the jobs in solution
• SumWjUj(solution) - minimize the sum of the weighted tardy jobs in solution

Job-level indicators

The criteria above are the result of the sum or the maximum of job-level indicators, such as the tardiness of each job, or the completion time of each job. These job-level indicators can be computed using the following methods (indeed these methods are called to obtain the criteria above):

• Cj(solution) - returns a list of the completion times of each job in the solution.
• Ej(solution) - returns a list of the earliness of each job in the solution.
• Fj(solution) - returns a list of the flowtime of each job in the solution.
• Lj(solution) - returns a list of the lateness of each job in the solution.
• Tj(solution) - returns a list of the tardiness of each job in the solution.
• Uj(solution) - returns a list indicating if a job in the solution is tardy, or not.

Note that the order of the list is the order of the jobs in the solution.