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INFO | LAWS OF UX
Info. Laws of UX is focused on making complex psychology heuristics accessible to more designers through an interactive resource that collects those that are relevant to user experience design. As humans, we have an underlying “blueprint” for how we perceive and process the world around us, and the study of psychology helps us decipherthis
MILLER’S LAW
Origins. In 1956, George Miller asserted that the span of immediate memory and absolute judgment were both limited to around 7 pieces of information. The main unit of information is the bit, the amount of data necessary to make a choice between two equally likely alternatives. Likewise, 4 bits of information is a decision between 16binary
JAKOB’S LAW
Jakob’s Law was coined by Jakob Nielsen, a User Advocate and principal of the Nielsen Norman Group which he co-founded with Dr. Donald A. Norman (former VP of research at Apple Computer).PARETO PRINCIPLE
Origins. Its origins stem back to Vilfredo Pareto, an economist who noticed 80% of Italy’s land was owned by 20% of the population. Though it might seem vague, the 80/20 way of thinking can provide insightful and endlessly applicable analysis of lopsided systems, including user experience strategy. Source.TESLER’S LAW
Tesler's Law, also known as The Law of Conservation of Complexity, states that for any system there is a certain amount of complexity which cannot be reduced. AESTHETIC-USABILITY EFFECT The aesthetic-usability effect was first studied in the field of human–computer interaction in 1995. Researchers Masaaki Kurosu and Kaori Kashimura from the Hitachi Design Center tested 26 variations of an ATM UI, asking the 252 study participants to rate eachOCCAM’S RAZOR
Occam’s razor (also Ockham’s razor; Latin: lex parsimoniae "law of parsimony") is a problem-solving principle that, when presented with competing hypothetical answers to a problem, one should select the one that makes the fewest assumptions. The idea is attributed to William of Ockham (c. 1287–1347), who was an English Franciscan friarZEIGARNIK EFFECT
Bluma Wulfovna Zeigarnik (1900 – 1988) was a Soviet psychologist and psychiatrist, a member of the Berlin School of experimental psychology and Vygotsky Circle. She discovered the Zeigarnik effect and contributed to the establishment of experimental psychopathology as a separate discipline in the Soviet Union in the post-World War IIperiod.
DOHERTY THRESHOLD
Origins. In 1982 Walter J. Doherty and Ahrvind J. Thadani published, in the IBM Systems Journal, a research paper that set the requirement for computer response time to be 400 milliseconds, not 2,000 (2 seconds) which had been the previous standard. When a human being’s command was executed and returned an answer in under 400 milliseconds,it
HOME | LAWS OF UXAESTHETIC USABILITY EFFECTDOHERTY THRESHOLDFITTS’S LAWHICK’S LAWJAKOB’S LAW Laws of UX is a collection of best practices that designers can consider when building user interfaces.INFO | LAWS OF UX
Info. Laws of UX is focused on making complex psychology heuristics accessible to more designers through an interactive resource that collects those that are relevant to user experience design. As humans, we have an underlying “blueprint” for how we perceive and process the world around us, and the study of psychology helps us decipherthis
MILLER’S LAW
Origins. In 1956, George Miller asserted that the span of immediate memory and absolute judgment were both limited to around 7 pieces of information. The main unit of information is the bit, the amount of data necessary to make a choice between two equally likely alternatives. Likewise, 4 bits of information is a decision between 16binary
JAKOB’S LAW
Jakob’s Law was coined by Jakob Nielsen, a User Advocate and principal of the Nielsen Norman Group which he co-founded with Dr. Donald A. Norman (former VP of research at Apple Computer).PARETO PRINCIPLE
Origins. Its origins stem back to Vilfredo Pareto, an economist who noticed 80% of Italy’s land was owned by 20% of the population. Though it might seem vague, the 80/20 way of thinking can provide insightful and endlessly applicable analysis of lopsided systems, including user experience strategy. Source.TESLER’S LAW
Tesler's Law, also known as The Law of Conservation of Complexity, states that for any system there is a certain amount of complexity which cannot be reduced. AESTHETIC-USABILITY EFFECT The aesthetic-usability effect was first studied in the field of human–computer interaction in 1995. Researchers Masaaki Kurosu and Kaori Kashimura from the Hitachi Design Center tested 26 variations of an ATM UI, asking the 252 study participants to rate eachOCCAM’S RAZOR
Occam’s razor (also Ockham’s razor; Latin: lex parsimoniae "law of parsimony") is a problem-solving principle that, when presented with competing hypothetical answers to a problem, one should select the one that makes the fewest assumptions. The idea is attributed to William of Ockham (c. 1287–1347), who was an English Franciscan friarZEIGARNIK EFFECT
Bluma Wulfovna Zeigarnik (1900 – 1988) was a Soviet psychologist and psychiatrist, a member of the Berlin School of experimental psychology and Vygotsky Circle. She discovered the Zeigarnik effect and contributed to the establishment of experimental psychopathology as a separate discipline in the Soviet Union in the post-World War IIperiod.
DOHERTY THRESHOLD
Origins. In 1982 Walter J. Doherty and Ahrvind J. Thadani published, in the IBM Systems Journal, a research paper that set the requirement for computer response time to be 400 milliseconds, not 2,000 (2 seconds) which had been the previous standard. When a human being’s command was executed and returned an answer in under 400 milliseconds,it
LAWS | LAWS OF UX
The aesthetic-usability effect was first studied in the field of human–computer interaction in 1995. Researchers Masaaki Kurosu and Kaori Kashimura from the Hitachi Design Center tested 26 variations of an ATM UI, asking the 252 study participants to rate each CATEGORIES | LAWS OF UX Laws of UX is a collection of best practices that designers can consider when building user interfaces.BOOK | LAWS OF UX
The principles from psychology most useful for designers. How these psychology principles relate to UX heuristics. Predictive models including Fitts’s law, Jakob’s law, and Hick’s law. Ethical implications of using psychology in design. A framework for applyingthese principles.
TAGS | LAWS OF UX
Laws of UX is a collection of best practices that designers can consider when building user interfaces.DOHERTY THRESHOLD
Origins. In 1982 Walter J. Doherty and Ahrvind J. Thadani published, in the IBM Systems Journal, a research paper that set the requirement for computer response time to be 400 milliseconds, not 2,000 (2 seconds) which had been the previous standard. When a human being’s command was executed and returned an answer in under 400 milliseconds,it
LAW OF COMMON REGION Takeaways. Adding a border around an element or group of elements is an easy way to create common region. Common region can be created by defining a background behind an element orZEIGARNIK EFFECT
Bluma Wulfovna Zeigarnik (1900 – 1988) was a Soviet psychologist and psychiatrist, a member of the Berlin School of experimental psychology and Vygotsky Circle. She discovered the Zeigarnik effect and contributed to the establishment of experimental psychopathology as a separate discipline in the Soviet Union in the post-World War IIperiod.
PROXIMITY | LAWS OF UX Laws of UX is a collection of best practices that designers can consider when building user interfaces. GOAL-GRADIENT EFFECT The goal-gradient hypothesis, originally proposed by the behaviorist Clark Hull in 1932, states that the tendency to approach a goal increases with proximity to the goal. In a classic experiment that tests this hypothesis, Hull (1934) found that rats in a straight alley ran progressively faster as they proceeded from the starting box tothe food.
SERIAL POSITION EFFECT The serial position effect, a term coined by Herman Ebbinghaus, describes how the position of an item in a sequence affects recall accuracy. The two concepts involved, the primacy effect and the recency effect, explains how items presented at the beginning of a sequence and the end of a sequence are recalled with greater accuracy than items in the middle of a list. HOME | LAWS OF UXAESTHETIC USABILITY EFFECTDOHERTY THRESHOLDFITTS’S LAWHICK’S LAWJAKOB’S LAW Laws of UX is a collection of best practices that designers can consider when building user interfaces.INFO | LAWS OF UX
Info. Laws of UX is focused on making complex psychology heuristics accessible to more designers through an interactive resource that collects those that are relevant to user experience design. As humans, we have an underlying “blueprint” for how we perceive and process the world around us, and the study of psychology helps us decipherthis
MILLER’S LAW
Origins. In 1956, George Miller asserted that the span of immediate memory and absolute judgment were both limited to around 7 pieces of information. The main unit of information is the bit, the amount of data necessary to make a choice between two equally likely alternatives. Likewise, 4 bits of information is a decision between 16binary
JAKOB’S LAW
Jakob’s Law was coined by Jakob Nielsen, a User Advocate and principal of the Nielsen Norman Group which he co-founded with Dr. Donald A. Norman (former VP of research at Apple Computer). Dr.HICK’S LAW
Hick’s Law (or the Hick-Hyman Law) is named after a British and an American psychologist team of William Edmund Hick and Ray Hyman. In 1952, this pair set out to examine the relationship between the number of stimuli present and an individual’s reaction time to any givenstimulus.
PEAK-END RULE
Takeaways. Pay close attention to the most intense points and the final moments (the “end”) of the user journey. Identify the moments when your product is most helpful, valuable, or entertaining and design to delight the end user. Remember that people recall negative experiences more vividly than positive ones.DOHERTY THRESHOLD
Origins. In 1982 Walter J. Doherty and Ahrvind J. Thadani published, in the IBM Systems Journal, a research paper that set the requirement for computer response time to be 400 milliseconds, not 2,000 (2 seconds) which had been the previous standard. When a human being’s command was executed and returned an answer in under 400 milliseconds,it
FITTS’S LAW
Fitts’ law is widely applied in user experience (UX) and user interface (UI) design. For example, this law influenced the convention of making interactive buttons large (especially on finger-operated mobile devices)—smaller buttons are more difficult (and time-consuming) to click. Likewise, the distance between a user’stask/attention
OCCAM’S RAZOR
Occam’s razor (also Ockham’s razor; Latin: lex parsimoniae "law of parsimony") is a problem-solving principle that, when presented with competing hypothetical answers to a problem, one should select the one that makes the fewest assumptions. The idea is attributed to William of Ockham (c. 1287–1347), who was an English Franciscan friar AESTHETIC-USABILITY EFFECT The aesthetic-usability effect was first studied in the field of human–computer interaction in 1995. Researchers Masaaki Kurosu and Kaori Kashimura from the Hitachi Design Center tested 26 variations of an ATM UI, asking the 252 study participants to rate each HOME | LAWS OF UXAESTHETIC USABILITY EFFECTDOHERTY THRESHOLDFITTS’S LAWHICK’S LAWJAKOB’S LAW Laws of UX is a collection of best practices that designers can consider when building user interfaces.INFO | LAWS OF UX
Info. Laws of UX is focused on making complex psychology heuristics accessible to more designers through an interactive resource that collects those that are relevant to user experience design. As humans, we have an underlying “blueprint” for how we perceive and process the world around us, and the study of psychology helps us decipherthis
MILLER’S LAW
Origins. In 1956, George Miller asserted that the span of immediate memory and absolute judgment were both limited to around 7 pieces of information. The main unit of information is the bit, the amount of data necessary to make a choice between two equally likely alternatives. Likewise, 4 bits of information is a decision between 16binary
JAKOB’S LAW
Jakob’s Law was coined by Jakob Nielsen, a User Advocate and principal of the Nielsen Norman Group which he co-founded with Dr. Donald A. Norman (former VP of research at Apple Computer). Dr.HICK’S LAW
Hick’s Law (or the Hick-Hyman Law) is named after a British and an American psychologist team of William Edmund Hick and Ray Hyman. In 1952, this pair set out to examine the relationship between the number of stimuli present and an individual’s reaction time to any givenstimulus.
PEAK-END RULE
Takeaways. Pay close attention to the most intense points and the final moments (the “end”) of the user journey. Identify the moments when your product is most helpful, valuable, or entertaining and design to delight the end user. Remember that people recall negative experiences more vividly than positive ones.DOHERTY THRESHOLD
Origins. In 1982 Walter J. Doherty and Ahrvind J. Thadani published, in the IBM Systems Journal, a research paper that set the requirement for computer response time to be 400 milliseconds, not 2,000 (2 seconds) which had been the previous standard. When a human being’s command was executed and returned an answer in under 400 milliseconds,it
FITTS’S LAW
Fitts’ law is widely applied in user experience (UX) and user interface (UI) design. For example, this law influenced the convention of making interactive buttons large (especially on finger-operated mobile devices)—smaller buttons are more difficult (and time-consuming) to click. Likewise, the distance between a user’stask/attention
OCCAM’S RAZOR
Occam’s razor (also Ockham’s razor; Latin: lex parsimoniae "law of parsimony") is a problem-solving principle that, when presented with competing hypothetical answers to a problem, one should select the one that makes the fewest assumptions. The idea is attributed to William of Ockham (c. 1287–1347), who was an English Franciscan friar AESTHETIC-USABILITY EFFECT The aesthetic-usability effect was first studied in the field of human–computer interaction in 1995. Researchers Masaaki Kurosu and Kaori Kashimura from the Hitachi Design Center tested 26 variations of an ATM UI, asking the 252 study participants to rate eachLAWS | LAWS OF UX
The aesthetic-usability effect was first studied in the field of human–computer interaction in 1995. Researchers Masaaki Kurosu and Kaori Kashimura from the Hitachi Design Center tested 26 variations of an ATM UI, asking the 252 study participants to rate each CATEGORIES | LAWS OF UX Laws of UX is a collection of best practices that designers can consider when building user interfaces.BOOK | LAWS OF UX
The principles from psychology most useful for designers. How these psychology principles relate to UX heuristics. Predictive models including Fitts’s law, Jakob’s law, and Hick’s law. Ethical implications of using psychology in design. A framework for applyingthese principles.
TAGS | LAWS OF UX
Laws of UX is a collection of best practices that designers can consider when building user interfaces.PARETO PRINCIPLE
Origins. Its origins stem back to Vilfredo Pareto, an economist who noticed 80% of Italy’s land was owned by 20% of the population. Though it might seem vague, the 80/20 way of thinking can provide insightful and endlessly applicable analysis of lopsided systems, including user experience strategy. Source. LAW OF COMMON REGION Takeaways. Adding a border around an element or group of elements is an easy way to create common region. Common region can be created by defining a background behind an element orLAW OF PROXIMITY
The principles of grouping (or Gestalt laws of grouping) are a set of principles in psychology, first proposed by Gestalt psychologists to account for the observation that humans naturally perceive objects as organized patterns and objects, a principle known as Prägnanz. Gestalt psychologists argued that these principles exist because themind
AESTHETIC-USABILITY EFFECT The aesthetic-usability effect was first studied in the field of human–computer interaction in 1995. Researchers Masaaki Kurosu and Kaori Kashimura from the Hitachi Design Center tested 26 variations of an ATM UI, asking the 252 study participants to rate eachZEIGARNIK EFFECT
Bluma Wulfovna Zeigarnik (1900 – 1988) was a Soviet psychologist and psychiatrist, a member of the Berlin School of experimental psychology and Vygotsky Circle. She discovered the Zeigarnik effect and contributed to the establishment of experimental psychopathology as a separate discipline in the Soviet Union in the post-World War IIperiod.
SERIAL POSITION EFFECT The serial position effect, a term coined by Herman Ebbinghaus, describes how the position of an item in a sequence affects recall accuracy. The two concepts involved, the primacy effect and the recency effect, explains how items presented at the beginning of a sequence and the end of a sequence are recalled with greater accuracy than items in the middle of a list. HOME | LAWS OF UXAESTHETIC USABILITY EFFECTDOHERTY THRESHOLDFITTS’S LAWHICK’S LAWJAKOB’S LAW Laws of UX is a collection of best practices that designers can consider when building user interfaces.INFO | LAWS OF UX
Info. Laws of UX is focused on making complex psychology heuristics accessible to more designers through an interactive resource that collects those that are relevant to user experience design. As humans, we have an underlying “blueprint” for how we perceive and process the world around us, and the study of psychology helps us decipherthis
MILLER’S LAW
Origins. In 1956, George Miller asserted that the span of immediate memory and absolute judgment were both limited to around 7 pieces of information. The main unit of information is the bit, the amount of data necessary to make a choice between two equally likely alternatives. Likewise, 4 bits of information is a decision between 16binary
JAKOB’S LAW
Jakob’s Law was coined by Jakob Nielsen, a User Advocate and principal of the Nielsen Norman Group which he co-founded with Dr. Donald A. Norman (former VP of research at Apple Computer). Dr.TESLER’S LAW
Tesler's Law, also known as The Law of Conservation of Complexity, states that for any system there is a certain amount of complexity which cannot be reduced.PARETO PRINCIPLE
Origins. Its origins stem back to Vilfredo Pareto, an economist who noticed 80% of Italy’s land was owned by 20% of the population. Though it might seem vague, the 80/20 way of thinking can provide insightful and endlessly applicable analysis of lopsided systems, including user experience strategy. Source.PEAK-END RULE
Takeaways. Pay close attention to the most intense points and the final moments (the “end”) of the user journey. Identify the moments when your product is most helpful, valuable, or entertaining and design to delight the end user. Remember that people recall negative experiences more vividly than positive ones.DOHERTY THRESHOLD
Origins. In 1982 Walter J. Doherty and Ahrvind J. Thadani published, in the IBM Systems Journal, a research paper that set the requirement for computer response time to be 400 milliseconds, not 2,000 (2 seconds) which had been the previous standard. When a human being’s command was executed and returned an answer in under 400 milliseconds,it
OCCAM’S RAZOR
Occam’s razor (also Ockham’s razor; Latin: lex parsimoniae "law of parsimony") is a problem-solving principle that, when presented with competing hypothetical answers to a problem, one should select the one that makes the fewest assumptions. The idea is attributed to William of Ockham (c. 1287–1347), who was an English Franciscan friarZEIGARNIK EFFECT
Bluma Wulfovna Zeigarnik (1900 – 1988) was a Soviet psychologist and psychiatrist, a member of the Berlin School of experimental psychology and Vygotsky Circle. She discovered the Zeigarnik effect and contributed to the establishment of experimental psychopathology as a separate discipline in the Soviet Union in the post-World War IIperiod.
HOME | LAWS OF UXAESTHETIC USABILITY EFFECTDOHERTY THRESHOLDFITTS’S LAWHICK’S LAWJAKOB’S LAW Laws of UX is a collection of best practices that designers can consider when building user interfaces.INFO | LAWS OF UX
Info. Laws of UX is focused on making complex psychology heuristics accessible to more designers through an interactive resource that collects those that are relevant to user experience design. As humans, we have an underlying “blueprint” for how we perceive and process the world around us, and the study of psychology helps us decipherthis
MILLER’S LAW
Origins. In 1956, George Miller asserted that the span of immediate memory and absolute judgment were both limited to around 7 pieces of information. The main unit of information is the bit, the amount of data necessary to make a choice between two equally likely alternatives. Likewise, 4 bits of information is a decision between 16binary
JAKOB’S LAW
Jakob’s Law was coined by Jakob Nielsen, a User Advocate and principal of the Nielsen Norman Group which he co-founded with Dr. Donald A. Norman (former VP of research at Apple Computer). Dr.TESLER’S LAW
Tesler's Law, also known as The Law of Conservation of Complexity, states that for any system there is a certain amount of complexity which cannot be reduced.PARETO PRINCIPLE
Origins. Its origins stem back to Vilfredo Pareto, an economist who noticed 80% of Italy’s land was owned by 20% of the population. Though it might seem vague, the 80/20 way of thinking can provide insightful and endlessly applicable analysis of lopsided systems, including user experience strategy. Source.PEAK-END RULE
Takeaways. Pay close attention to the most intense points and the final moments (the “end”) of the user journey. Identify the moments when your product is most helpful, valuable, or entertaining and design to delight the end user. Remember that people recall negative experiences more vividly than positive ones.DOHERTY THRESHOLD
Origins. In 1982 Walter J. Doherty and Ahrvind J. Thadani published, in the IBM Systems Journal, a research paper that set the requirement for computer response time to be 400 milliseconds, not 2,000 (2 seconds) which had been the previous standard. When a human being’s command was executed and returned an answer in under 400 milliseconds,it
OCCAM’S RAZOR
Occam’s razor (also Ockham’s razor; Latin: lex parsimoniae "law of parsimony") is a problem-solving principle that, when presented with competing hypothetical answers to a problem, one should select the one that makes the fewest assumptions. The idea is attributed to William of Ockham (c. 1287–1347), who was an English Franciscan friarZEIGARNIK EFFECT
Bluma Wulfovna Zeigarnik (1900 – 1988) was a Soviet psychologist and psychiatrist, a member of the Berlin School of experimental psychology and Vygotsky Circle. She discovered the Zeigarnik effect and contributed to the establishment of experimental psychopathology as a separate discipline in the Soviet Union in the post-World War IIperiod.
BOOK | LAWS OF UX
The principles from psychology most useful for designers. How these psychology principles relate to UX heuristics. Predictive models including Fitts’s law, Jakob’s law, and Hick’s law. Ethical implications of using psychology in design. A framework for applyingthese principles.
CATEGORIES | LAWS OF UX Laws of UX is a collection of best practices that designers can consider when building user interfaces.LAWS | LAWS OF UX
The aesthetic-usability effect was first studied in the field of human–computer interaction in 1995. Researchers Masaaki Kurosu and Kaori Kashimura from the Hitachi Design Center tested 26 variations of an ATM UI, asking the 252 study participants to rate eachTAGS | LAWS OF UX
Laws of UX is a collection of best practices that designers can consider when building user interfaces. LAW OF COMMON REGION Takeaways. Adding a border around an element or group of elements is an easy way to create common region. Common region can be created by defining a background behind an element orZEIGARNIK EFFECT
Bluma Wulfovna Zeigarnik (1900 – 1988) was a Soviet psychologist and psychiatrist, a member of the Berlin School of experimental psychology and Vygotsky Circle. She discovered the Zeigarnik effect and contributed to the establishment of experimental psychopathology as a separate discipline in the Soviet Union in the post-World War IIperiod.
AESTHETIC-USABILITY EFFECT The aesthetic-usability effect was first studied in the field of human–computer interaction in 1995. Researchers Masaaki Kurosu and Kaori Kashimura from the Hitachi Design Center tested 26 variations of an ATM UI, asking the 252 study participants to rate each GOAL-GRADIENT EFFECT The goal-gradient hypothesis, originally proposed by the behaviorist Clark Hull in 1932, states that the tendency to approach a goal increases with proximity to the goal. In a classic experiment that tests this hypothesis, Hull (1934) found that rats in a straight alley ran progressively faster as they proceeded from the starting box tothe food.
PROXIMITY | LAWS OF UX Laws of UX is a collection of best practices that designers can consider when building user interfaces. SERIAL POSITION EFFECT The serial position effect, a term coined by Herman Ebbinghaus, describes how the position of an item in a sequence affects recall accuracy. The two concepts involved, the primacy effect and the recency effect, explains how items presented at the beginning of a sequence and the end of a sequence are recalled with greater accuracy than items in the middle of a list. Down ArrowExternal LinkLeft ArrowRight ArrowShapeCloseFacebookLogoMenuTwitterLAWS OF UX
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AESTHETIC USABILITY EFFECT01
Users often perceive aesthetically pleasing design as design that’smore usable.
Learn More
DOHERTY THRESHOLD
02
Productivity soars when a computer and its users interact at a pace (<400ms) that ensures that neither has to wait on the other.Learn More
FITTS’S LAW
03
The time to acquire a target is a function of the distance to and sizeof the target.
Learn More
HICK’S LAW
04
The time it takes to make a decision increases with the number and complexity of choices.Learn More
JAKOB’S LAW
05
Users spend most of their time on other sites. This means that users prefer your site to work the same way as all the other sites theyalready know.
Learn More
LAW OF COMMON REGION06
Elements tend to be perceived into groups if they are sharing an area with a clearly defined boundary.Learn More
LAW OF PRÄGNANZ
07
People will perceive and interpret ambiguous or complex images as the simplest form possible, because it is the interpretation that requires the least cognitive effort of us.Learn More
LAW OF PROXIMITY
08
Objects that are near, or proximate to each other, tend to be groupedtogether.
Learn More
LAW OF SIMILARITY
09
The human eye tends to perceive similar elements in a design as a complete picture, shape, or group, even if those elements areseparated.
Learn More
LAW OF UNIFORM CONNECTEDNESS10
Elements that are visually connected are perceived as more related than elements with no connection.Learn More
MILLER’S LAW
11
The average person can only keep 7 (plus or minus 2) items in theirworking memory.
Learn More
OCCAM’S RAZOR
12
Among competing hypotheses that predict equally well, the one with the fewest assumptions should be selected.Learn More
PARETO PRINCIPLE
13
The Pareto principle states that, for many events, roughly 80% of the effects come from 20% of the causes.Learn More
PARKINSON’S LAW
14
Any task will inflate until all of the available time is spent.Learn More
PEAK-END RULE
15
People judge an experience largely based on how they felt at its peak and at its end, rather than the total sum or average of every momentof the experience.
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POSTEL’S LAW
16
Be liberal in what you accept, and conservative in what you send.Learn More
SERIAL POSITION EFFECT17
Users have a propensity to best remember the first and last items in aseries.
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TESLER’S LAW
18
Tesler's Law, also known as The Law of Conservation of Complexity, states that for any system there is a certain amount of complexity which cannot be reduced.Learn More
VON RESTORFF EFFECT
19
The Von Restorff effect, also known as The Isolation Effect, predicts that when multiple similar objects are present, the one that differs from the rest is most likely to be remembered.Learn More
ZEIGARNIK EFFECT
20
People remember uncompleted or interrupted tasks better than completedtasks.
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* Aesthetic Usability Effect* Doherty Threshold
* Fitts’s Law
* Hick’s Law
* Jakob’s Law
* Law of Common Region* Law of Prägnanz
* Law of Proximity
* Law of Similarity
* Law of Uniform Connectedness* Miller’s Law
* Occam’s Razor
* Pareto Principle
* Parkinson’s Law
* Peak-End Rule
* Postel’s Law
* Serial Position Effect* Tesler’s Law
* Von Restorff Effect* Zeigarnik Effect
OVERVIEW
Laws of UX is a collection of the maxims and principles that designers can consider when building user interfaces. It was created by JonYablonski .
THE BOOK
An expansion of the ideas found on this site is now available in book form, titled _Laws of UX: Using Psychology to Design Better Products &Services
_.
POSTERS
High-resolution posters are available for purchase via The Online Store of Jon Yablonski .COLOPHON
Tools used to create this site include paper, pencil and Sketch Appfor design, Gulp
for development workflow automation, Sass for CSS preprocessing, and Nunjucks for templating. Typography is set in IBM Plex Sans and Plex Mono , an open-source typeface by IBM. Jon Yablonski 2020 | All Rights Reserved -------------------------Share
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