Key finding
A protocol separating vendor delay, approval delay, and customer-caused delay in parts orders.
Research question and scope
This protocol examines parts order delays. It reports what one defined record can show in a fixed window and does not claim an industry rate or a causal effect.
Population and unit of analysis
The unit is one ordered part with a promised date. Using one unit keeps linked events from being counted as independent successes or failures.
Definitions and measures
The measure is the delay by stage. Publish the denominator and time window beside each count.
Evidence and data dictionary
Collect the order, vendor, approval, and arrival. Keep missing, unavailable, and confirmed negative as separate states.
Sampling and collection
The sample is orders placed during one quarter. Record the observation date and exclude items already open before the window.
Analysis and reporting
Report delay by vendor and part type. Separate customer behavior from staff behavior whenever the evidence supports it.
Limitations and sources of error
Limits include backorders and canceled orders. State them beside the finding and avoid turning a small sample into a universal standard.
Review cadence and next action
The next step is to set an earlier reminder for slow vendors. Re-test a later sample after the change.
Map the next controlled handoff
Bring one recurring workflow, its source records, and the person who owns exceptions.
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