Define
CTQ Tree Builder (CTQC)
Turn customer needs into clear, measurable requirements and operational definitions.
Measure · Interactive CI tool
A Data Collection Plan specifies what will be measured, how, where, by whom and over which cases and period.
Read freely. Creating a worksheet requires a verified free beta account. No payment or manual beta approval.
Use it when establishing a baseline, testing a change or resolving inconsistent measurement definitions.
It makes data reproducible and useful before a team invests effort in collecting it.
Use CTQC first if the requirement is still vague. Use Time Study for timed observations or Control Chart for subsequent time-ordered analysis.
Fictional example snapshot
A fictional supplier plans a sample of dispatched orders.
| Definition | Any correction to the approved dispatch label before release |
|---|---|
| Collection | Daily sample, agreed size and source; operations analyst responsible |
| Limitations | Sample excludes a separate overseas workflow; report that boundary |
These figures illustrate the method; they are not clinical instructions, universal targets or verified results from a real organization.
Read the complete worked example and its interpretationThe full guide includes prerequisites, interface-specific steps, two fictional examples, common mistakes and interpretation help. It is available without registration.
Data Collection Plan: guide & examplesOpen Data Collection PlanDefine
Turn customer needs into clear, measurable requirements and operational definitions.
Measure
Record repeated observations and compare processing, waiting, interruptions and rework with deterministic statistics.
Control
Build chart-specific SPC analyses with frozen baselines and documented special-cause signals.