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Decomposition Analyzer breaks down any measured deviation into form, size, orientation, and position components — in one click, in 3D, directly on your part geometry. Based on ISO 20170.
The global value doesn’t tell you.
And without knowing which component dominates, every corrective action is a guess — you might spend a week adjusting fixturing when the real issue is a sizing parameter.
Decomposition Analyzer applies ISO 20170 directly on your Metrolog inspection result. It separates the contribution of form, size, orientation, and position — and displays them in 3D on your part geometry.
You see immediately which component dominates. And you know exactly where to act — before writing a single corrective action.
You see which component dominates in one click — form, size, orientation, or position. No manual calculation.
Analysis follows the international standard for geometric deviation decomposition. Audit-ready and process-aligned.
Results displayed directly on the part geometry inside Metrolog. No separate report to cross-reference.
You know what type of deviation you're dealing with before the root-cause meeting even starts.
Watch how a quality engineer goes from a Metrolog inspection result to a complete form/size/orientation/position breakdown — without leaving the software.
From your Metrolog inspection session, select the feature you want to analyse. Launch Decomposition Analyzer directly — it reads the inspection result and loads your part geometry automatically. No file export, no additional setup.
Select the evaluation criterion (Tchebychev or Least Squares) in the Modify Decomposition dialog. The four ISO 20170 component types — form, size, orientation, position — are computed instantly from your measured data and displayed on the 3D geometry.
The DECOMP1 results panel shows the actual value and proportion of each component. The dominant contributor is immediately visible. You know whether you’re facing a form issue (tool), a size problem (cutting parameters), an orientation drift (fixturing), or a position shift (setup) — before writing any corrective action.
You write corrective action reports. Decomposition Analyzer gives you the breakdown you need to identify and document the root cause — not just the measured value. Non-conformances that actually explain what went wrong, with data to back it up.
You need to know which process parameter drifted. Decomposition Analyzer tells you immediately: form error points to the tool, orientation drift to fixturing, position shift to setup, size error to cutting parameters. Direct action, no meeting required.
See Decomposition Analyzer on your own parts.
The Manufacturing Quality Pack connects three capabilities into one continuous workflow. Each works standalone — and works better together.
Validate your tolerance strategy before the first chip is cut. Apply realistic geometric defects on your CAD model and run GD&T inspection virtually.
Transform measured deviations into CNC corrections automatically. Predictive Mode shows how the next part will measure before you run it. No trial-and-error.
Decomposition Analyzer runs inside Metrolog — it reads your inspection results directly, uses your existing part geometry and datum framework, and outputs results in the same 3D environment you already work in. No file export, no translation, no new tool to learn.
Available as a bundle licence within the Manufacturing Quality Pack. If you already use Metrolog, your upgrade path is shorter than you think.
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