PDF/UA failure conditions: the Matterhorn Protocol, explained

The Matterhorn Protocol lists the 137 ways a PDF can fail PDF/UA-1 (ISO 14289-1). Each condition has a page here: what it says, which clause it comes from, and what AxisRemedy does about it.

The 137 failure conditions of the Matterhorn Protocol 1.1
What AxisRemedy does with it	Conditions
Tested by the app	87
Left for you, with screening	31
Left for you	17
No test of its own	2

By checkpoint

Checkpoints
Checkpoint	Conditions	Decided by AxisRemedy
01 Real content tagged	7	4
02 Role Mapping	4	3
03 Flickering	3	0
04 Color and Contrast	1	0
05 Sound	3	0
06 Metadata	4	3
07 Dictionary	2	2
08 OCR Validation	2	0
09 Appropriate Tags	8	5
10 Character Mappings	1	1
11 Declared Natural Language	7	6
12 Stretchable Characters	1	0
13 Graphics	8	1
14 Headings	7	4
15 Tables	5	1
16 Lists	3	0
17 Mathematical Expressions	3	2
18 Page Headers and Footers	2	0
19 Notes and References	4	2
20 Optional Content	3	3
21 Embedded Files	1	1
22 Article Threads	1	0
23 Digital Signatures	1	0
24 Non-Interactive Forms	1	0
25 XFA	1	1
26 Security	2	2
27 Navigation	1	0
28 Annotations	18	15
29 Actions	1	0
30 XObjects	2	2
31 Fonts	30	29