Production scheduling and sequencing
SYSPRO scheduling tools offer flexibility to address different levels of complexity and automation required to balance scheduling priorities, constraints and conflicts. While SYSPRO's Material Requirements and Work in Progress modules offers infinite capacity scheduling, as well as basic single-level forward finite loading for single constraints, SYSPRO Factory Scheduling (SFS) offers powerful finite backward, forward and bi-directional scheduling by job or resource. Creation and manipulation of schedules can be done manually or via automatic methods which allow for multiple constraints, including material availability in a multi-level bill of material environment.
SFS gives you the flexibility of executing or parallel loading (resource-based scheduling) based on preferred sequences. Preferred sequences determine what order the jobs and operations are going to be processed in any given work center. In job-based scheduling, loading is by due date, first in, or forward or reverse priority. In resource-based scheduling, each resource decides which operation to load next based on dispatching rules such as shortest setup time, closest to due date, user-defined attributes and critical ratio, with each resource having its own dispatching rule.
SFS provides advanced algorithmic rules to enable the implementation of sophisticated optimization techniques, such as minimizing idle work centers or total work-in-progress, scheduling around selected or dynamic bottlenecks, or minimizing overall setup. Furthermore, user-scripted rules enable the definition of user-defined sequencing priorities, such as by customer attribute.
SFS allows for automatic machine selection within work center, as well as the designation of machines as available for manual scheduling only. Furthermore, the path of WIP through the factory may be controlled through configuration of subsequent machine selections and 'if...then' scenarios; for example, if operation 1 is on an 8-inch drill, operation 2 must be on an 8-inch press. SFS also provides preferred resource selection for scheduling on primary and secondary machines. So the system can be configured so that everything is loaded on a primary machine until a specific threshold is reached, in which case a secondary machine is used.
SFS allows the configuration of relations between attributes on a specific resource, such as setup times when switching from one color to another. This feature, along with user-defined product attributes, facilitates the grouping and ranking of operations for a resource, based on match properties; for example: color, for optimizing changeover times; firing temperatures, for optimizing furnace usage; or cubic capacity, for optimizing space usage inside an oven or drying room.
Schedules are displayed on the SFS interactive graphical planning board, with highlighting of late, held and unscheduled jobs. Drag and drop editing with undo/redo options enables easy manipulation of operations, while validate and repair options help to ensure the integrity of a manipulated schedule. The system provides the option to save multiple schedules and compare them using Gantt views, while at-a-glance schedule performance metrics enable you to assess which is the best in terms of a variety of variables such as set up time, lead time, resource utilization.