The MES operator screen, where shop-floor work actually gets done

What operators do in the user interface

• Move In / Move Out Operators start and finish each step directly in the user interface. Every timestamp is captured automatically, so a unit's whole journey can be traced back.
• Material consumption The system recommends a lot based on FEFO or FIFO. Operators can still pick a different lot when they need to, but must give a reason, which is then recorded in the audit trail.
• Quality data capture Measurements are recorded directly against pass/fail limits. If a value falls outside specification, the system raises a non-conformance automatically.
• Recording a non-conformance Operators can record a deviation, choose a non-conformance code, and set its severity. At critical severity, the affected unit is held immediately.
• Flexible by design Transaction types can be added to suit the process, rather than forcing every plant onto one fixed set.

Three ways into the same work

All three lead to the same transactions and the same rules.

Built for a busy shop floor

• A refresh resumes the task The screen keeps its state in the URL, so a refresh mid-task lands exactly where the operator was.
• You can see who else is on a unit Presence indicators and conflict alerts show when someone else is working the same unit. A warning appears if the screen is open in two tabs.
• Checked before it is sent Every transaction runs pre-flight checks. A unit on hold blocks further action until it is released.
• Move Out walks the operator through the rest Move Out can open a wizard that chains data collection, work-instruction acknowledgement, pallets and signatures in order.
• Revisits follow the rules you set When a unit returns to a step through rework, the Specification decides which gates must be redone. By default acknowledgement, data collection and signatures are redone, and consumed material is kept.
• Your own screen, the same enforcement The transaction rules live in one shared package used by the backend and the frontend. A custom operator screen gets identical enforcement, and an eligibility check reports which actions are available and why the rest are blocked.

Work instructions right in the user interface

The work instructions for each step appear in the user interface exactly when the operator needs them. There is no paper, no separate binder, and no doubt about which revision is current.

• Step by step, in context Operators see what to do for the step they are working on, at the moment they need it.
• Confirmed as the process runs Each step confirmation is captured automatically as part of the execution record.
• Always the correct version Instructions come from the routing the order is using, so a process change never leaves an operator working from a stale instruction.

Process data arrives without being retyped

If the equipment can already report its own data, operators should not have to key the same value in by hand.

• Read straight from the equipment Process parameters can be recorded automatically over OPC UA, MQTT, or Modbus TCP.
• Attached to the right unit Every reading is tied directly to the production unit and the step being run, rather than stored separately and reconciled by hand later.
• Checked as it is recorded Values are compared against their specification limits immediately, so a deviation is caught at the step that caused it.

FEFO and FIFO allocation

The right material is selected under the applicable rule, while expired lots are blocked outright.

• FEFO: first expired, first out For material with an expiry date, the system recommends the lot with the nearest expiry.
• FIFO: first in, first out For non-perishable material, the system follows receipt order so older stock is used first.
• Override with a reason Operators can choose a different lot where there is an operational reason, but the reason must be recorded and becomes part of the audit trail.
• Expired lots are blocked An expired lot is not merely flagged with a warning. It cannot be used in production at all.

Example: cocoa mass under FEFO with a 365-day shelf life.