In fast-paced industries such as manufacturing, healthcare, and transportation, where uninterrupted operations are crucial, shift schedules play a vital role. These schedules offer numerous benefits for both employers and employees. For employees, shift schedules provide the flexibility to balance personal or family obligations, improving work-life balance and overall job satisfaction. Meanwhile, employers benefit from the efficient use of facility and human resources.
By implementing shift schedules, organizations can minimize downtime, maximize production capacity, generate increased revenue and provide better service. For instance, in manufacturing, with employees working in shifts, production can be optimized, leading to higher output and improved financial performance. In healthcare and emergency services, having a 24/7 operation is critical for ensuring the health and safety of the public. Shift schedules ensure that there are always qualified staff available to provide medical care and respond to emergencies.
However, a satisfactory shift schedule can be extremely hard to create. On the other hand, no matter how perfect the first schedule is at the time of launch, frequent adjustments are usually inevitable due to unforeseen circumstances like an employee's illness or a no-show. In order to efficiently respond to the events of each day and ensure that qualified staffs are always available to cover all shifts, we have designed and created this intelligent software for a wide range of shift scheduling applications. The software's architecture is innovative, and it imaginatively blends artificial intelligence and combinatorial optimization techniques to deal with various shift scheduling problems.
- A wide variety of employee shift scheduling problems are classified by the same number of shifts set on every day in a schedule cycle. Currently, one to forty eight shifts per day are supported.
- This software is furnished with innovatively developed scheduling engines and modeling tools that make it easier for users to create, update, and iteratively optimize shift schedules. It is no longer necessary to build an LP, MIP, or CSP model for a shift scheduling problem. Instead, a problem model is built in a simpler, more user-friendly way by inputting parameters and constraints into a set of dialogs.
- It provides a collection of basic shift scheduling constraints for decision-making and model-building that are extracted and derived from common and frequently used schedule requests. Rather than being presented as mathematical formulas (e.g. a set of linear inequalities), these constraints are expressed by descriptive phrases in dialogs. Multiple basic constraints may be combined to generate more complex constraints to cope with the various requirements that arise in the real world.
- One of the most notable advantages this software delivers is its reactive scheduling capability, with which user can dynamically add or remove constraints to tackle the challenges of ongoing schedule adjustment. In order to create the least amount of perturbation when a new request comes in, a minimal number of altered shifts are sought in contrast to the existing schedule.
- Another characteristic of this software is its remarkable flexibility. It can be used to fulfill simple and complex scheduling tasks. The process of modeling, creating and revising schedules can be as easy as choosing an option and pressing a button. Moreover, sophisticated strategies and techniques are also available to deal with difficult issues (e.g., decomposition of a problem and merging multiple scheduling solutions to construct the final results).
- For each employee, his available dates, total working hours, total shifts, number of different shift types, and shift intervals are comprehensively considered and processed in a scheduling cycle. By using the estimation results and the optimization algorithm supplied in the software, it is effortless to determine the right number of employees with the necessary skills and experience in a schedule and achieve a healthy balance between company and employee needs.
- A cycle of a schedule may last one to seven days. User can choose to terminate a scheduling process after one cycle of scheduling is complete or proceed to the next cycle. In the latter case, the software will take the outcomes of the preceding cycle into account and ensure that the shifts between cycles also satisfy the general constraints used inside a cycle.
- The scheduling outcomes will be shown in Gantt-charts and GUI tables. Integration tools are provided to communicate with external systems (e.g., import employee data into the software, export results to an excel file, and send results to employees via text message or social media. etc.).
- Each day is divided into three 8-hour shifts. Each shift type requires different number of employees.
- A-shift：00:00-08:00（1 employee required）
- B-sfhit：08:00-16:00（3 employees required）
- C-shift：16:00-24:00（3 employees required）
- Every day, no employee works more than one shift.
- Number of shifts are evenly assigned to employees.
- Each employee has at least one day off in the 7-day period.
Software solution:
In this shift schedule, 4 employees work for 48 hours and 5 employees work for 40 hours a week. The shifts assigned to each employee are spaced by at least 16 hours.
2. Creating a schedule for 10 employees over a 7-day period, subject to the constraints as listed in example 1.
Software solution:
In this shift schedule, 9 employees work for 40 hours, 1 employee works for 32 hours a week. Each employee has at least two days off in the 7-day period and has different shift types on two consecutive days. The shifts assigned to each employee are spaced by at least 24 hours.
3. Creating a schedule for a hospital department over a 7-day period, subject to the following constraints:
- Each day is divided into three 8-hour shifts. Each shift type requires different number of employees on different level.
- A-shift：23:30-07:30（1 Senior Nurse, 1 Nurse and 1 Assistant Nurse required）
- B-sfhit：07:30-15:30（1 Senior Nurse, 3 Nurses and 2 Assistant Nurses required）
- C-shift：15:30-23:30（1 Senior Nurse, 2 Nurses and 1 Assistant Nurse required）
- Every day, no nurse works more than one shift.
- No nurse works more than 40 hours in 7-day period.
- Number of shifts are evenly assigned to nurses.
- Each nurse has at least one day off in the 7-day period.
- Nurse01 and Nurse02 do not work on the same shift simultaneously.
- Arrange AssistantNurse1 to work with SeniorNurse1 simultaneously as much as possible
Software solution:
In this shift schedule, the shifts assigned to each employee are different for two consecutive days, and they are spaced by at least 24 hours.
- Every day is divided into six 4-hour time slots. Each time slot requires different number of employees.
- A-slot：02:00-06:00（6 employees required）
- B-slot：06:00-10:00（9 employees required）
- C-slot：10:00-14:00（10 employees required）
- D-slot：14:00-18:00（10 employees required）
- E-slot：18:00-22:00（9 employees required）
- F-slot：22:00-02:00（6 employees required)
- Every day, 5 shifts are arranged as shown in the table below, where each shift contains two 4-hour time slots:
- Every day, no employee works more than one shift.
- Each employee has two days off in the 7-day period.
- Number of shifts are evenly assigned to employees
Software solution:
In this shift schedule, each employee works for 40 hours a week. The shifts assigned to each employee are different for two consecutive days, and they are spaced by at least 24 hours.
- Each day is divided into three 8-hour shifts (Night, Day, Evening).
- The number of employees required for the same shift-type varies from day to day:
- Every day, no employee works more than one shift.
- No employee works more than 40 hours in 7-day period.
- Number of shifts are evenly assigned to employees.
- Each employee has at least two days off in the 7-day period.
- Staff_3, Staff_4 and Staff_5 do not work on the same shift simultaneously.
Software solution:
In this shift schedule, 3 employees work for 32 hours and 10 employees work for 40 hours a week. The shifts assigned to each employee are different for two consecutive days, and they are spaced by at least 24 hours.
6. Creating one day's schedule for 7 employees in a retail store, subject to the following constraints:
- Personnel required may vary every half hour
- A minimum of 2 hours and a maximum of 4 hours constitute a shift
- Shift intervals must be at least half an hour
- Employees can work up to 8 hours per day and 40 hours per week
- Between 11:00 and 14:00, and between 17:00 and 20:00, everyone has at least a half-hour break (for lunch and dinner respectively)
One of the Software solutions:
In this shift schedule, 4 employees work for 5.5 hours and 3 employees work for 6 hours a day (each colored batch represents a half-hour period).
- R&D for the software is in progress. The code that's been uploaded is incomplete.
- Please cite this repository by including the appropriate citation information when using content found here.
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