Don't settle for rules-based suboptimal scheduling. Use BOLT for better results.
A majority of businesses today schedule their operations using simple rules which are often coded in Spreadsheet models. These essentially sort jobs by their due dates / priority and assign machines to jobs serially. This provides inferior (and sometimes infeasible) results. Instead, the solver technology allows for solving the scheduling problem in a holistic manner – where the schedule is optimal and always feasible.
Job shop scheduling is a complex and critical function in manufacturing
Matching jobs to workcenters seems like a simple job, but it isn’t. Jobs have due dates, earliest / latest start times, dependencies, priorities, special processing requirements, etc. The workcenters have setup times, downtimes, changeovers, cleanups, etc. When there are many jobs and workcenters, scheduling becomes very complex. Modern mathematical and constraint programming software enables solving such scheduling problems with far more superior results than what can be done by simply using rules-based approaches.
BOLT comes packed with many useful scheduling features
Due date adherence for jobs
Line-dependent variable job durations
Hard and soft dependencies between jobs
Support ASAP and JIT modes
Honor line downtimes
Honor manpower limitations
Schedule mid-week equipment cleanup
Setup times for lines
Split / parallel jobs
Handle fixed jobs and overrides
Building blocks and technology
Powered by MIP / CP solvers
Handle work in progress (WIP)
Available as a service – can be called by a client
Integrated with a relational DB
What-if scenario analysis capability
Step-wise optimization to handle prioritized mutiple goals
IT and Interfacing Features
Intuitive User Interface
Rich Gantt chart
Tables and canned reports
Can be interfaced to ERP
Can upload/download data using Excel
Systematic input data error trapping
Infeasibility analysis and reporting
Traffic lighting to efficiently manage workflow
Crude scheduling entails scheduling of vessel arrivals and crude unloadings
A crude oil refinery is like a massive freight train – it cannot be stopped or slowed down easily. Hence the ships serving a refinery have to be scheduled over a horizon of months. Today’s tools use rules of thumb to approximately schedule shipments of crude oil parcels and often without regard to critical logistical constraints like tidal windows, berth availability, etc. This results in costly demurrage expenses and blending expenses.
Large Winery Operation
In the cellar operation, blending and filtering of wine in undertaken among many other operations. This is a resource intensive operation. BOLT was used to optimally schedule tanks and filters in a 7 day horizon with excellent results. The tank headspace savings were on the order of 10% and the filter scheduling ensured minimal changeovers. The savings were on the order of $5 Million in capital avoidance by using BOLT.
Ready to put the power of BOLT to test?
Call us with your toughest scheduling needs. We have a systematic process and a questionnaire which allows you to do a quick assessment of your business needs and difficulty level.