Shop Floor Traceability Software: Moving from Paper to Digital Records

Shop floor traceability software records what happens to each unit, lot, or batch as it moves through production: the materials and components used, the operations performed, the people and equipment involved, and the inspection results. It replaces paper travelers, routing sheets, and logbooks with a record that builds at the workstation and can be searched quickly.

For most manufacturers moving off paper, that software is a manufacturing execution system (MES). Four other categories cover narrower parts of the job: ERP production modules, standalone track-and-trace tools, digital forms and work instruction apps, and quality management systems.

Eyelit Technologies publishes this guide.

What software replaces paper-based traceability on the shop floor?

A manufacturing execution system (MES) is the software category built to replace paper-based traceability on the shop floor, because it records each production step against the unit or lot as the work happens. The right fit depends on how much of the shop floor you need to cover and how detailed your traceability has to be. The table shows typical patterns; what each system records in practice depends on how it is configured and integrated.

Ask one question of any option: does it enforce production steps and check data as the work happens, or does it store what operators enter afterwards? Enforcement keeps the record complete. It is also the usual reason plants outgrow forms or basic ERP tracking.

Many plants combine two of these. A common pairing is an ERP system for orders, inventory, and shipments with an MES for everything that happens on the shop floor between them.

What does a digital traceability record need to capture?

A digital traceability record needs to capture the identity of each unit, lot, or batch and every input and check applied to it, at the step where it happens.

A practical record usually holds:

• the product’s identifier, and its parent and child relationships as parts become assemblies
• the supplier lot or serial number of each material and component consumed
• each operation performed, with its date and time
• the operator and the equipment for each step
• process values and inspection or test results against their limits
• any rework, nonconformance, and its disposition
• the quantity completed, the shipment, and the customer it went to

That list is a working model, and each manufacturer sets its own fields. The underlying requirement comes from ISO 9001:2015, clause 8.5.2, which asks organizations to control the unique identification of outputs when traceability is a requirement, and to keep the documented information needed to enable it. Sector standards and customer contracts often set the level of detail on top of that.

Say a supplier reports a problem with one lot of resin. The record shows every work order that consumed that lot, then the finished serial numbers built on those orders, then the inspection results for each one. The quality team starts with a single lot number and ends with a list of affected units and their test history.

Should you trace by lot or by serial number?

The level of identification is set for each product, component, or process: a serial number where each unit needs its own history, and a lot or batch where units made together can be treated as one group.

Lot traceability links a group of units to the materials and process conditions they shared. It costs less to run and suits high-volume parts made in batches. Serial traceability gives every unit its own record, which narrows any containment or recall to the exact units affected. It suits high-value, safety-critical, or individually tested products.

Most plants use both. Serial numbers go on finished assemblies, and lots go on the components and materials inside them. The software then links the two levels so you can trace in either direction.

Medical device manufacturers have specific record and UDI requirements under the FDA’s QMSR. Our guide to medical device traceability on the shop floor covers them.

How do manufacturers move from paper to digital traceability?

Manufacturers move from paper to digital traceability in six steps, usually one line or product family at a time.

1. Map the paper you have today. Collect every traveler, routing sheet, checklist, and logbook for one product family. Note what each one records, who fills it in, and who reads it.
2. Decide the level of traceability. Choose lot, serial, or both for each part, based on customer contracts, sector standards, and the cost of a recall.
3. Set up identifiers and scanning. Assign identifiers to units, lots, and materials, and put barcode or label scanning at the points where materials are consumed and operations are completed.
4. Build the process in the system. Model the routing, the data to collect at each step, and the checks that must pass before the unit moves on.
5. Connect to ERP. Pass work orders, materials, and completions between ERP and the shop floor system, so lot numbers are entered once.
6. Pilot, then retire paper. Run one line on the new system, confirm the record holds everything the paper did, then switch the line off paper and move to the next.

The first line takes the longest. Each line after it reuses the identifiers, routings, and integration already built.

How does Eyelit MES replace paper-based traceability?

Eyelit MES lets manufacturers digitize device and controlled history records while remaining compliant, removing paper and manual processes.

Eyelit MES maintains electronic controlled history records (eCHR) in which the customer defines exactly which elements are captured and nothing beyond them, with enforced control over operator skills, tools, documents, work instructions, and material consumption recorded against the history record.

Eyelit MES provides multi-level tracking and genealogy across serial, lot, batch, kit, and sub-assembly, traceable forward and backward in a single action. Eyelit MES holds history records in an immutable record structure, designed so that entries cannot be altered after signature.

Eyelit MES supports discrete, batch, or combined discrete-and-batch manufacturing on the same model. Eyelit MES integrates with ERP, order entry, and PLM through one point of integration rather than a separate integration per system.

For a side-by-side view of MES platforms, see our comparison of the 10 best MES software platforms for manufacturers.

Sources

1. ISO 9001:2015, Quality management systems: Requirements, clause 8.5.2, Identification and traceability