Affordance

Internal and external links are different.

Registry No. 045

Links causing external software to be opened have an explicit libelledé.

Registry no. 046

The file format proposed for download is specified.

Registry #047

Navigation is done in predictable order

Režim no.054

Graphic policy is consistent across the entire digital book

Renewal no. 055

Information is not supported only by color

Registry No. 056

The file size proposed for download is specified.

Register #048

Content is not assigned only by its shape or screen position

Number 059