Statistical Process Control (SPC) Charts

This is a build-to-order module, not an instant apps.odoo.com download. After a short discovery to lock your characteristics, chart types, subgroup sizes and rule set, typical delivery is 2 to 4 weeks depending on scope and integrations. We build against your exact Odoo version (17, 18 or 19), install on staging for your sign-off, then deploy to production. Simple single-characteristic scopes land at the fast end; multi-plant setups with gauge/MES feeds sit toward the upper end.

Every engagement includes a defined post-launch support window covering bug fixes and compatibility maintenance, plus a documented migration path so the module keeps working when you move across Odoo 17, 18 and 19. You receive the full source in a Git repository, so you're never locked in. Extended support, new chart types or additional integrations can be added as a follow-on. We fix defects we introduced under the included window at no charge.

It works with it. On Enterprise, the module consumes the measurement quality.check records your operators already enter against work orders, operations and lots — you don't re-key data. It adds the statistical layer Odoo core lacks: control limits, out-of-control run rules, and Cp/Cpk. Odoo Quality records the number; this module tells you whether the process is in control and capable. On Community (no Quality app), we include a lightweight standalone measurement-capture form so you can still run charts.

Variable charts: X-bar/R, X-bar/S and Individuals & Moving Range (I-MR). Attribute charts: p-charts and np-charts for defective-unit data. Detection uses the Western Electric and Nelson rule sets — points beyond 3-sigma, runs on one side of the centre line, trends, zone (1/2/3-sigma) violations and stratification. You pick the active rule set per characteristic during configuration. Capability is reported as Cp, Cpk, Pp and Ppk against your USL/LSL with a live histogram.

Yes. The SPC models are exposed over Odoo's XML-RPC and JSON-RPC APIs, so digital gauges, a PLC/SCADA layer or an existing MES can post readings directly into the subgroup records and trigger recomputation of limits and capability. We scope and wire one agreed integration as part of delivery; additional feeds can follow. Where a live feed isn't in scope, operators enter measurements through the Quality app or the capture form as normal.

Security follows Odoo conventions. Access is granted per group via ir.model.access.csv — for example Quality User can enter and read, while Quality Manager can lock or re-baseline control limits. Record rules (ir.rule) enforce multi-company and multi-plant isolation so one site can't see or alter another's charts. Control-limit changes are audit-logged with who changed them and when, which is exactly what IATF/ISO auditors ask for.