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I want to convey a requirement that has a minimum but no maximum to my users. For instance 8.

Which is more understandable? Participants: >8 or Participants: 8+ ?

From layouts point of view >8 is more favorable because it can be right aligned along with other numbers too.

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5  
If you want to get technical, they each have different meanings anyway. >8 = greater than 8 8+ = greater than or equal to 8 –  Nick Bedford Nov 1 '11 at 5:16
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Thanks guys, I'll go with 8+ –  Moe Sweet Nov 1 '11 at 5:59
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It depends on the context. In the wrong context 'participants 8+' could be read as those who are over 8 years old. –  PhillipW Nov 1 '11 at 10:29
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@nick What about ≥8? –  Knu Nov 1 '11 at 16:15
    
@Knu technically correct but UTF-8/ect extended characters are generally good to avoid. –  Ben Brocka Nov 1 '11 at 17:26

7 Answers 7

up vote 12 down vote accepted

Possibly neither, they each have different meanings:

>8 = greater than 8
8+ = greater than or equal to 8

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2  
Uh, ok, so then how about >7 vs. 8+? –  BlueRaja - Danny Pflughoeft Nov 1 '11 at 19:23
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8+ is more intuitive to me at a glance. >7 would be used in a mathematical context, but in a UI, I would use 8+ myself. –  Nick Bedford Nov 1 '11 at 21:51

Definitely 8+. I've met college graduates who still get the less than and greater than signs mixed up.

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What about +8 ? –  Moe Sweet Nov 1 '11 at 3:46
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@MoeSweet - I don't think so. You never really see the + before the number with this kind of thing. If right-aligning is such an issue, couldn't you just pad the numbers that don't have a + with a single space? –  Steve Wortham Nov 1 '11 at 3:54
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I would interpret +8 as a stupid way to write 8 (in contrast to -8). –  giraff Nov 1 '11 at 7:25
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If you're dealing with a gamer, +8 means you add 8 to an object or action (I have a cloak with +8 dexterity). 8+ would mean you have to achieve something of at least 8 (you need to roll 8+ in order to kill the dragon). So there's some more...esoteric logic behind the differences. –  OghmaOsiris Nov 1 '11 at 16:35

We had this discussion internally and went for 8+. It seems to make most sense to most people. >8 refers to math while you are more likely to come across 8+ when for example checking the pricing table at Disneyland.

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Agreed. < and > are used in programming, mathematics, etc. But they aren't seen and used in every day life for most people. –  Steve Wortham Nov 2 '11 at 20:34

Could you not write it in English? "More than 8" "8 or greater" "8 or more"?

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Doesn't have space for that. Thanks anyway. –  Moe Sweet Nov 2 '11 at 2:05

You'll find enough people who will not understand 8+ (basically everybody who works outside of IT). But everybody who attended a school should understand >7.

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"min. 8" or "8 min.". This is of course longer than what you have proposed but it is more verbose and has less of a change of being misunderstood.

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Doesn't have space for that. Thanks anyway. –  Moe Sweet Nov 2 '11 at 2:05

@PhillipW made a good point. It depends the context. With 8+ you may have double meaning, while >8 is a safer choice.

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