Question

Johnson's rule is used for

• A. Sequencing problem
• B. Assignment problem
• C. Aggregate planning
• D. Scheduling

Answer 1

Answer:

A. Sequencing problem

Johnson's rule is used for sequencing n jobs through two machines to minimize idle time and total time taken. It finds an optimal sequence of jobs to reduce makespan time and reduces idle time between work centers. Assignment method is used to allocate jobs to work centers and appropriate for problems with n things to be distributed to n destinations, each thing assigned to one destination and only one criterior used. Aggregate production planning determines production inventory, and workforce levels to meet fluctuating demand requirements. Scheduling determines timing and order of operations to optimize resource use for production requirements.