AOAnnotation Ops Kit

QA spreadsheets and playbooks for teams that outsource labeling

Accept the batch. Or send it back, with the math.

Work out how many items to check, then turn the review into a decision you can show the vendor.

Sample size

The vendor's expected or past accuracy, not your target. Unsure? Use 50% for the most conservative (largest) sample.
Items to review 188 7.8% of 2,400 items
How this is calculated

n₀ = z² × p × (1 − p) ÷ e²
n = n₀ ÷ (1 + (n₀ − 1) ÷ N)
rounded up, at most N

Batch decision · paid QA Tracker

Required sample
188
Reviewed
192
Passed
183
Critical errors
0 of 0 allowed
Observed accuracy
95.3%
Wilson 95% interval
91.3% to 97.5%
85%target 95%100%
ACCEPT

Full sample reviewed, no critical errors, and 95.3% meets the 95% target.

Example data from the kit's worked sample.

Three jobs, one kit

Check each batch

Size the sample, log the errors, and get an accept or reject decision you can show the vendor.

QA Core and up

Track delivery

Log output per person and cycle time per batch, so a late delivery points to a slow stage.

Ops Kit and up

Compare vendors

Pick or replace a vendor with written requirements, the same questions and the same pilot.

Ops Kit and up

Pricing

One-time purchase. Checkout opening soon. Sales tax or VAT is added at checkout where it applies.

QA Core
$99 one-time

Check each batch.

  • Annotation Guideline Template
  • QA System playbook
  • QA Tracker & Sampling Calculator

Single-user license.

Checkout opening soon
Ops Kit Full kit
$199 one-time

Check, track and compare vendors.

  • Everything in QA Core
  • Throughput Tracker (requires Google Sheets)
  • Vendor RFP Kit, 4 parts

Single-user license.

Checkout opening soon
Ops Kit + Team
$299 one-time

One vendor process for a team.

  • Everything in Ops Kit
  • Up to 10 people at one company

Team license. No resale, redistribution or public posting.

Checkout opening soon

Delivered as a zip of .xlsx and .docx files with a README. Terms of sale and license

The files

Real snapshots. Example data is fictional. Click a picture to see it full size.

View methods

Standard, published methods. Every formula is visible in its cell.

Cochran sample size with finite population correction
How many random items to review for a batch size, confidence and margin.
Wilson score interval
A range for true batch accuracy that stays sensible near 100%.
Cohen's kappa, Fleiss' kappa for 3 annotators
Agreement after removing what you'd expect by chance. Landis and Koch cut-offs at 0.60 and 0.80 set the bands.
IoU for boxes
Overlap of two bounding boxes, to check annotators drew the same box.
Weighted scoring with knockouts
Criteria scored 1 to 5 and weighted to 100. A Must-have under 3 or a missed pilot gate removes a vendor before ranking.

About and FAQ

Annotation Ops Kit is an independent publisher.

What format are the files?

A zip of .xlsx and .docx files plus a README. They open in Google Sheets and Docs or in Excel and Word. The Throughput Tracker needs Google Sheets for live results.

Is there a free version?

Yes. The free sheet has the same sample size formula plus a shared error taxonomy. No email needed. Download it (.zip, 17 KB)

Are you affiliated with a labeling vendor or platform?

No. There are no affiliate or referral deals, and we don't sell labeling.

What's your refund policy?

Not useful? Within 14 days of purchase, contact us through your Gumroad receipt for a full refund, no questions asked.

Can I get an invoice?

Yes. Gumroad handles sales tax or VAT, and you can generate an invoice with your company details from your receipt.