When comparing Dvorak Simplified Keyboard vs Carpalx QGMLWB, the Slant community recommends Dvorak Simplified Keyboard for most people. In the question“What are the best keyboard layouts for programming?” Dvorak Simplified Keyboard is ranked 2nd while Carpalx QGMLWB is ranked 5th. The most important reason people chose Dvorak Simplified Keyboard is:
Designed with comfort in mind.
Ranked in these QuestionsQuestion Ranking
Pro More ergonomic
Designed with comfort in mind.
Pro Standard on all operating systems
You can find this layout on all operating systems.
Pro You can reuse qwerty layout
Since letters and symbols only change place, but not key, you can change the keys on your keyboard and get a full comfortable Dvorak layout, without having to buy a new keyboard.
Pro Useful keys in home row
70% of more useful keys are placed in the home row.
Pro Opportunity to learn proper touch typing
Most people passively learn and use QWERTY-based layouts before switching to Dvorak. The switch gives them an opportunity to completely relearn 10-finger typing, which is where a significant portion of the speedup comes from. Coupled with more ergonomic key placement, this makes for a more enjoyable typing experience.
Pro Vowels all on one hand making it easy to teach to kids
Pro Punctuation is in the same location as QWERTY
If you already know QWERTY you don't have to relearn the punctuation, with the single exception of the
;: key which is in QWERTY's
P position, like Colemak.
Pro ZXC don't move compared to QWERTY
Like Colemak, the common undo, cut and copy Ctrl-commands don't move from their QWERTY positions. The
V (paste) key does though.
Pro Uses a colemak-like character layout
Uses the colemak character layout of moving P on a standard QWERTY keyboard layout one step down, extending the home row.
Pro Has low consecutive finger use
See the source here.
Pro Letter positions optimized
Via a quantitative effort model.
Con Inconvenient for common key-shortcuts
Key bindings common to most applications, such as Ctrl+Z/C/V, can't be done on the left hand while mousing with the right. Shortcuts for other applications are out of the QWERTY positions they were designed for and aren't so convenient to access.
Con L is too hard to reach
L is not a rare letter. It's used even more than
U is in English. Why put it in a difficult spot for use with the weak pinky finger?
Con The "ls" command is uncomfortable to type
This is a very common command programmers have to type often when working with the shell. It's pretty awkward in Dvorak, especially when you add common options. Try typing "ls ‐latr", and see how that feels.
Con Difficult for occasional moments when you have only one hand free
Hand-alternation is good for touch-typing with both hands, but problematic (a lot of horizontal movement) when typing with one. Can be avoided by temporarily switching to another layout.
Con F is too hard to reach
F is not an especially common letter, but it's used much more than the rare letters
JQZ. Why is it on one of the most difficult spots on the keyboard? It's also used in
OF, one of the more common bigrams, ranked at #13. Maybe some other languages use
Z more than English, but why is
F harder to reach than
Con The U is directly under your finger while the I is far away
I is used more--by about 2.5 times. In fact,
U is the least used vowel after
Y. The consonants
TNSHRDLC all appear more often. So why is
U directly under your finger? And why should you have to stretch for
Con Not easy on the right pinky finger
Most useful symbols for programming are on the right pinky finger, which is not very comfortable.
Con Not the standard keyboard layout
It will be difficult to frequently switch between computers
Con Doesn't account for finger length
The keyboard layout doesn't account for E being easier to press than C for example on a QWERTY layout, this can be seen for example using the workman key cap scores done here.
Con Not actually faster than QWERTY
Maybe it's more ergonomic, but that's debatable. You'll certainly get more benefit from an ergonomic keyboard than a change in layout. Dvorak's reputation for speed is due to a typo in the initial press report, and a biased (and since discredited) study run by Dvorak himself.
Con Punctuation is not optimized.
Programmers have to use punctuation a lot, but (except for the
;: key, like Colemak) punctuation hasn't been moved from their positions on QWERTY. In fact, the non-letter characters
, . - " _ ' ) ( ; 0 1 = 2 : are used more than the least-frequent letter
z in a reasonable English corpus. Not optimizing punctuation at all, especially for programmers, is nonsense.
Con V key has moved compared to QWERTY
The common paste shortcut used in for example windows has been moved to the right hand, making the layout harder to learn. This however is fixed in the QGMLWY variant of the carpalx series.
Con Doesn't take finger length into account
Unlike layouts such as norman and workman, QGMLWB doesn't take the length of fingers into account, for example on a standard QWERTY layout, it's easier to reach E than C.
Con Effort model is speculative
The quantitative effort model central to the optimization is based on armchair speculation, rather than a scientific biomedical study. The chosen metrics and weighting for them are likely partially correct. But no-one is really sure how correct.
Con A very small user base and community
Con Doesn't favor the right hand
For right handed users, this keyboard layout doesn't use the usually stronger right hand more than the left, infact it sometimes favors the left hand more.