principles:principle_of_least_surprise
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principles:principle_of_least_surprise [2020-10-12 16:31] – old revision restored (2013-02-25 15:24) 159.69.186.191 | principles:principle_of_least_surprise [2021-09-02 14:15] – old revision restored (2021-09-02 10:25) 65.21.179.175 | ||
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- | ====== Principle Of Least Surprise (PLS) ====== | + | jakooll |
===== Variants and Alternative Names ===== | ===== Variants and Alternative Names ===== | ||
* Principle of Least Astonishment (PLA) | * Principle of Least Astonishment (PLA) | ||
* May also be referred to as " | * May also be referred to as " | ||
+ | * Acronyms sometimmjjhlhjkhjkhjkhkhjkhes include the " | ||
===== Context ===== | ===== Context ===== | ||
/* fill in contexts here: */ | /* fill in contexts here: */ | ||
- | * [[contexts: | + | * [[contexts: |
+ | * [[contexts: | ||
+ | * [[contexts: | ||
+ | * [[contexts: | ||
===== Principle Statement ===== | ===== Principle Statement ===== | ||
> In interface design, always do the least surprising thing.((Eric S. Raymond: // | > In interface design, always do the least surprising thing.((Eric S. Raymond: // | ||
+ | |||
===== Description ===== | ===== Description ===== | ||
+ | Never surprise the user. An interface should behave exactly as the user thinks it behaves. What surprises the user depends on the kind of interface (user interface, module interface) and the type of user (end user, fellow programmer, maintainer). The central idea of PLS is to think about how the user would want to use the interface. | ||
===== Rationale ===== | ===== Rationale ===== | ||
+ | Surprises are always a potential source for frustration. A user wants to be in control of the system. If the system does not behave as intended, the user gets disappointed and has to determine how to get the system do what it should do. On the other hand a system that behaves according to the users wishes is pleasant to use. | ||
+ | |||
+ | Secondly when everything works as expected, the user will make fewer mistakes. In case of a user interface this means that the user is more effective and in case of a module interface the software will have fewer defects. | ||
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===== Origin ===== | ===== Origin ===== | ||
+ | |||
+ | The precise origin is unknown. Probably it's // | ||
===== Evidence ===== | ===== Evidence ===== | ||
/* Comment out what is not applicable and explain the rest: */ | /* Comment out what is not applicable and explain the rest: */ | ||
- | /* | + | |
- | | + | / |
- | * [[wiki: | + | /*[[wiki: |
- | | + | |
- | * [[wiki: | + | [[wiki: |
- | */ | + | |
+ | /*[[wiki: | ||
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{{page> | {{page> | ||
- | ===== Example | + | ===== Examples |
===== Description Status ===== | ===== Description Status ===== | ||
/* Choose one of the following and comment out the rest: */ | /* Choose one of the following and comment out the rest: */ | ||
- | [[wiki: | + | /*[[wiki: |
- | /*[[wiki: | + | [[wiki: |
/ | / | ||
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* Joshua Bloch: // | * Joshua Bloch: // | ||
+ | ===== Discussion ===== | ||
+ | |||
+ | Discuss this wiki article and the principle on the corresponding [[talk: |
principles/principle_of_least_surprise.txt · Last modified: 2021-10-18 22:15 by christian