FT-10: Time to read

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Category: Speed · Time: about 10 minutes · Run it and see results: https://openckey.org/tests/test?id=FT-10

What it checks

In ordinary conditions a CKey reads in under 2 seconds from pointing the camera.

Why

Speed decides whether people keep using a code. The decoder's speed on real phones has not been measured yet; this collects the first numbers.

Test codes

Print or open the sheet at https://openckey.org/tests/sheet?id=FT-10. It is drawn by the CKey web SDK from the values below.

Set up

1. Print the test sheet at 100% scale; the code is 2.0 inches wide.
2. Use ordinary indoor light. Open the reader and leave it on the camera view.
3. Use a stopwatch, or a second person to time.

Steps

1. Point away from the code, then start the stopwatch as you point at it from about 20 cm.
2. Stop it when the result appears.
3. Repeat 10 times and record each time.

What to record

• Seconds to result (s), number, required. For each of: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.

Every report also records the device, operating system, reader and its version, and the printer or screen.

How to grade it

• Pass: The median of the ten times is under 2 seconds.
• Partial: The median is 2 to 5 seconds.
• Fail: The median is over 5 seconds, or some attempts never read.

Report a result

• On openckey.org: https://openckey.org/tests/test?id=FT-10, with optional photos.
• On GitHub: open a field-test report and choose FT-10.

Both are published together at https://openckey.org/tests and as JSON at https://openckey.org/api/field/results.