What is the process of deciding on the job order on some machine or at some work Centre?
Operations ResearchYou are currently using guest access (Log in) Show
Page path
Skip Navigation Navigation
You are currently using guest access (Log in) Operations Research One of the ultimate goals in manufacturing is to ensure that all customer demands are produced on time for the lowest cost possible. As most resources in a production facility have limited capacity, it is common to have multiple jobs in the queue, waiting to be worked on by those resources. One of the challenges faced in the creation of the schedule is determining the order in which jobs are to be worked on. Job sequencing rules exist to assign priority to each job to determine which jobs should be done first. This process addresses potential scheduling issues that may lead to a lack of efficiency. Deciding on the order of jobs can be a real challenge for schedulers as you must coordinate variables such as material availability, resource capacity, upstream and downstream operations, and the need date - to name a few examples. When a sub-optimal schedule is created, you may inadvertently create a ‘waiting line’ in front of slower machines, thereby increasing the number of WIP items and inventory holding costs. Job Sequencing Rules have been created to help manufacturers and schedulers create optimized production schedules. Your production schedule sets the course for your business performance. An optimized production schedule will ensure that jobs and orders are completed within the timeframe they are given. Job Sequencing RulesThere are many Job Sequencing Rules that can be used. Here are some of them:
The above examples represent only a few of the many job sequencing rules that can be used. Applying these different rules to your production schedule will give you different outputs in which some may be more effective in meeting your business’s goals than others. Although these rules may seem simple in isolation, scheduling hundreds of jobs simultaneously requires a lot of information such as the job’s due date, routing, standard setup, processing, whether alternative machines can be used to do the work, the current status of the job, and much more. We feed it the facts we know, and it automatically proposes an optimized schedule that allows us to meet those dates. It’s something we tried, but never could do manually. Manual scheduling using spreadsheets can be extremely time-consuming and prone to error. This is why softwares such as PlanetTogether’s Advanced Planning and Scheduling (APS) system are becoming prevalent among manufacturing operations. PlanetTogether allows you to automatically create an optimized schedule based on the job sequencing rules you prefer. In PlanetTogether, Optimize Rules are used in conjunction with Release Rules to define scheduling preferences and determine the best sequence of operations. This software also provides users with the flexibility of creating the schedule by using weighted factors and key performance indicators of interest. Advanced Planning and Scheduling (APS) SoftwareAdvanced Planning and Scheduling Softwares have become a must for modern-day manufacturing operations as customer demand for increased product assortment, fast delivery, and downward cost pressures become prevalent. These systems help planners save time while providing greater agility in updating ever-changing priorities, production schedules, and inventory plans. APS Systems can be quickly integrated with an ERP/MRP software to fill the gaps where these systems lack planning and scheduling flexibility, accuracy, and efficiency. With PlanetTogether APS you can:
The implementation of an Advanced Planning and Scheduling (APS) Software will take your manufacturing operations to the next level of production efficiency by taking advantage of the operational data you already possess in your ERP system. APS is a step in the right direction of efficiency and lean manufacturing production enhancement. Try out a free trial or demo! Related What If VideoAPS ResourcesTopics: Optimize, Advanced Planning and Scheduling, operations planning, production scheduling What do you called the order of completion of jobs?Processing order refers to the order (sequence) in which machines are required for completing the job.
Which method is used for sequencing of jobs on two machines?Suppose that 2 or 3 jobs are to be processed on 2 or 3 machines. Then the job se- quencing can be done by the method of enumeration. If, however, the number of jobs and/or machines increases, then the problem becomes complicated and the method of enumeration is not suitable.
When work Centres are used in optimal sequence to do the job we can?When work centers are used in optimal sequence to do the jobs, we can: (A) Minimise the set up time (B) Minimse operation time (C) Minimise the breakdown of machines (D) Minimise the utility of facility. 95.
When many jobs need to be processed on two machines one after the other the sequencing rule used is?In operations research, Johnson's rule is a method of scheduling jobs in two work centers.
|