From the blog

#data-quality

2 articles tagged #data-quality.

An overnight flight leg spanning two calendar days with a +1 arrival-day offset highlighted, in Active Flights brand cyan on near-black.
SSIM & Schedules·

Overnight flights and the day that changes

A red-eye departs one day and lands the next. SSIM encodes that with a day offset — and the 2400-vs-0000 midnight edge — which naive time handling turns into negative block times and arrivals before departure.

#ssim#overnight#day-change#data-quality
A validation panel listing schedule issues, some flagged as real errors and some acknowledged as known conventions, in Active Flights brand amber on near-black.
SSIM & Schedules·

The data-quality edge cases that break schedule parsers

A field guide to the real-world quirks in SSIM feeds — time modes, overnight arrivals, DST, operational suffixes, season edges — that turn a 'simple' fixed-width parser into a maintenance treadmill.

#ssim#data-quality#validation#edge-cases