Fragment 8 of 72 · drawer 01
Image transfer decision card
An original publishing aid based on documented interlace orders, asking what the first incomplete image should communicate.
- Accession
- MW-F-008
- Representative period
- Web publishing field note, 1994–2002
- Drawer
- Instructions & warnings
- Certainty
- high
Image transfer decision card
Web publishing field note, 1994–2002
Observed surface
If recognition matters first, choose a progressive or interlaced order.
If upper detail matters first, sequential top-down arrival may be preferable.
Total bytes and order of revelation are separate design decisions.
Implied procedure
Test at a speed slow enough to expose the passes; a local preview conceals the visitor's experience.
Place essential information where partial delivery cannot turn it into a false statement.
Interpretive residue
This card treats loading order as editorial structure rather than a file-format checkbox.
The author decides what a visitor is permitted to know while the picture is still becoming itself.
Accountability record
Evidence beneath the reconstruction.
These institutional sources support the mechanism or historical practice interpreted above. They do not contain this reconstructed record, its wording, or its invented values.
- World Wide Web Consortium · 1996 PNG Specification: Interlaced data order Defines the seven-pass Adam7 pattern that lets a meaningful whole image appear before every pixel arrives. Open institutional record ↗
- World Wide Web Consortium archive · 1990 Graphics Interchange Format, Version 89a The period format specification, including its four-pass interlaced row order. This is mechanically different from progressive JPEG and Adam7 PNG. Open institutional record ↗