How to choose a quality management system

"Quality software" covers three genuinely different jobs, and the tools that do them rarely overlap. One manages the paper trail around quality — documents, training records, audits, corrective actions. One watches live process measurements and flags when a machine or process is drifting out of spec. One models manufacturing data with more correlated variables than a human, or a simple control chart, can track. Before comparing named products, work out which of these three jobs you actually have, because a shortlist built around the wrong one wastes the evaluation.

Job one: managing the quality management system itself

An electronic quality management system (eQMS) is where document control, training records, audits, supplier quality and CAPA — corrective and preventive action — live. This is process and record-keeping software, not a measurement tool: it tells you who approved what, when a deviation was investigated, and whether an audit finding was closed out.

ETQ Reliance and MasterControl and TrackWise all sit here. They differ mainly in regulatory focus and deployment flexibility, not in the basic job. MasterControl and TrackWise are built specifically around the validation demands of life-sciences and medical-device manufacturers chasing FDA, EMA and ISO 13485 compliance; ETQ Reliance, now part of Hexagon, is pitched more broadly across regulated manufacturing generally, with a no-code workflow builder that lets quality teams reconfigure processes themselves. If your business spans several manufacturing sectors, not only life sciences, that breadth matters.

Job two: watching the process as it runs

Statistical process control (SPC) software connects to gauges, PLCs or manual entry stations and builds control charts in real time, flagging when a process parameter drifts before it produces a defective part. This is a shop-floor tool for quality engineers and plant managers, distinct from an eQMS's document-and-workflow focus.

InfinityQS is the SPC specialist here, shipping as an on-premise product (ProFicient) for single-plant monitoring and a cloud service (Enact) for multi-facility visibility, with Cpk/Ppk capability reporting built in. Datanomix looks adjacent but solves a narrower problem: it connects directly to CNC machine controllers to benchmark cycle time and uptime without operator data entry, which is closer to production monitoring than SPC control charting on measured part dimensions. If your question is "is this machine running efficiently," Datanomix fits; if it's "is this dimension staying in spec," InfinityQS does.

Job three: modeling processes with too many variables for a control chart

Classical SPC charts one variable at a time. Some processes — biopharmaceutical bioreactor runs, complex chemical batches — have dozens of interacting parameters, and no single-variable chart explains what is actually driving quality outcomes. That is the job of multivariate data analysis (MVDA): techniques like PCA and PLS/OPLS that identify which combinations of process parameters explain variation, flag batches deviating from a trained model, and predict final quality from in-process measurements.

SIMCA is the tool built for this, aimed at process engineers in biopharma and specialty chemicals. It complements rather than replaces univariate SPC — a plant might run both InfinityQS for straightforward control charts and SIMCA for batches where variables interact in ways a single chart can't capture.

Deployment and compliance shape the shortlist as much as function

Life-sciences manufacturers evaluating an eQMS should weight validation history and deployment flexibility heavily: TrackWise's on-premises option, alongside its cloud TrackWise Digital, is a genuine differentiator if your validation policy or IT governance rules out cloud-only. MasterControl and ETQ Reliance are cloud-only. None of the SPC or MVDA tools here publish open-source licenses — InfinityQS, SIMCA and the eQMS platforms are all commercial, quote-only products, so budget for a sales conversation rather than a self-serve signup regardless of which job you're solving.

A shortlist by situation

• If you run a regulated life-sciences or medical-device manufacturing operation and need document control, CAPA and audits: look at MasterControl and TrackWise, and weigh TrackWise's on-premises option against MasterControl's cloud-only, AI-assisted investigation workflow.
• If your regulatory scope spans manufacturing sectors beyond life sciences and you want to configure quality workflows yourself: ETQ Reliance's no-code approach is built for that.
• If you need real-time control charts on gauge or PLC data across one or many plants: InfinityQS.
• If you run CNC machine shops and want shop-floor utilization visibility without an ERP integration: Datanomix — but recognize it does not replace SPC charting on part dimensions.
• If your process has many correlated variables — a bioreactor run, a complex batch chemical process: SIMCA.

Questions to ask vendors

• Is this product managing quality records and workflow, or charting live measured data? Many RFPs conflate the two and end up disappointed.
• What deployment options exist today, not on a roadmap — on-premises, single-tenant cloud, multi-tenant cloud?
• How does data flow in: manual entry, direct machine/gauge/PLC connection, or integration with ERP/MES/LIMS?
• For an eQMS: how much configuration can our own team do without a vendor professional-services engagement?
• For SPC or MVDA: what capability metrics (Cpk/Ppk) or model-validation statistics does the product report, and can we export the underlying data?

Common mistakes

• Buying an eQMS expecting it to catch process drift in real time — it manages the paperwork after an event is already flagged, not the measurement itself.
• Buying SPC software expecting it to manage CAPA, audits or supplier quality — that's a separate product category.
• Assuming multivariate modeling (MVDA) is a fancier version of SPC rather than a different technique for a different kind of process; a simple, well-controlled process rarely needs it.
• Skipping the deployment-flexibility question until late in the evaluation, then discovering the preferred vendor is cloud-only when policy requires on-premises.

For head-to-head detail, see ETQ Reliance vs MasterControl and MasterControl vs TrackWise. Every tool in this category is listed at every tool in this category.