KordKord vs Arena: revision letters vs. visual diffs
PTC Arena is a PLM/QMS for hardware companies that build regulated products and need a controlled system of record. Kord is the review layer for engineering teams that need to see what changed across a submittal package before it ships.
Arena is for hardware companies that manufacture regulated products like medical devices and electronics, and need a validated, Part 11 system of record for controlled items, ECOs, and quality records. If that’s your world, keep Arena; Kord isn’t a QMS.
But the engineering of a one-off project isn’t a controlled part list. Before anything reaches a QMS, the design has to be reviewed, and Arena can’t diff a mixed-format submittal or flag a value drifting across related files.
If you’re doing the FEED for an infrastructure project rather than building a regulated product in a factory, Arena is more process than the work needs, and Kord is where the review belongs. Where Arena is your record, run review in Kord first and cut the ECO from a package you’ve actually seen.
| Capability | Arena | Kord |
|---|---|---|
| Primary unit of work | Controlled items and quality records | Engineering document sets and submittal packages |
| Change orders | ECN/ECO workflows with revision letters | Review sessions grouping all files touched by a change |
| Revision compare | Revision history on controlled items; not mixed-format package diff | Visual diffs for PDF, Excel, STEP, text, and images |
| Cross-document consistency | Manual; no package-level AI checks | AI reads across specs and flags mismatched values |
| Review speed | Formal but slow under iterative submittals | Built for fast iteration on EPC deliverables |
| Items & records | Many controlled items, BOMs, and quality records | Forked document sets per site/customer, a different object than part records |
| Best for | Regulated factory hardware: controlled records and QMS | Pre-QMS engineering review of submittal packages |
Don't take the table's word for it — diff two revisions of your own files with the free diff tool. No login required.
Typical Arena workflow
- Open an ECN for the design change
- Attach revised controlled documents
- Route for sequential approvals
- Reviewers rely on revision letters, not visual diffs
- Release, though related calculations may still be out of sync
Kord workflow
- Edit files. Kord syncs and versions them automatically
- See exactly what changed, with visual diffs across PDF, Excel, STEP, and more
- AI cross-document consistency checks catch what humans miss
- Group a single change across every document it touches - excel, word, pdf, etc.
- Ship with full traceability, including a release snapshot and audit trail