What Is Electronic Work Instructions?
Also known as: digital work instructions, e-work instructions, paperless work instructions, EWI
Definition
Electronic work instructions are digital, step-by-step process instructions shown to operators on terminals or tablets at the point of work, controlled by revision and linked to the specific job, part and operation instead of printed paper.
Electronic Work Instructions Explained
Instead of a binder or a printed packet at the station, the operator opens the job and sees the correct instruction for that part number and revision, often with photos, 3D models, video, torque values and inspection points. Because the content is stored centrally, a revision change appears everywhere at once and old versions are retired.
Good systems add enforcement. The operator must acknowledge steps, enter measured values, scan component lots or serial numbers, and cannot complete an operation until required inputs are captured. These records become part of the as-built history, which supports AS9100, ISO 13485 and customer audit requirements.
In ERP terms, instructions are linked to the routing operation. SyteLine routing operations can reference documents, and Infor LN supports operation text and linked documents. Deeper features such as guided steps with data capture usually come from an MES or a dedicated work instruction tool that reads the job from the ERP and writes results back.
Why It Matters
- Operators always see the current revision, which eliminates builds to superseded drawings.
- Training time falls because new staff follow guided steps with images.
- Captured measurements and sign-offs become audit evidence without separate paperwork.
- Feedback from operators can be tied to a step, so engineering fixes the real problem.
In Practice
An electronics assembler had a revision change to a harness routing. Under the paper system, two stations still held old printouts for a week. After moving to electronic instructions tied to the BOM revision, release of revision C replaced revision B at every terminal at once, and any job already started on B was flagged for engineering review.
Frequently Asked Questions
Are electronic work instructions part of an MES?
Often yes, but standalone tools exist. Either way they should read the job and revision from the ERP and write results back.
Do they help with audits?
Yes. Sign-offs, measurements and revision history are stored per job, which makes it easy to show what was done and under which instruction.
Can AI generate work instructions?
AI can draft steps from engineering documents, but an engineer must review and approve them before release, especially for safety or regulated work.
Related Terms
Manufacturing Execution System (MES)
A Manufacturing Execution System (MES) is software that tracks, controls and documents production on the shop floor in real time, from releasing a work order to recording what was actually made, by whom, on which machine and with which materials.
Poka-Yoke
Poka-yoke is a mistake-proofing technique that designs a process or fixture so a human error either cannot occur at all or is detected immediately, before it becomes a defect passed to the next operation.
Traceability
Traceability is the ability to follow the history, location, and application of a part or material through the supply chain and production process, both backward to its sources and forward to every product and customer it reached.
AS9100
AS9100 is the quality management system standard for the aviation, space, and defense industry, published by SAE and the International Aerospace Quality Group, which incorporates all of ISO 9001 and adds sector-specific requirements for safety, configuration, and risk.
Product Genealogy
Product genealogy is the recorded family tree of a finished product: which component lots and serial numbers went into it, which operations, machines, people and process settings built it, and which customers received it.
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