Monday, September 1, 2014

UX Definitions

A/B Testing
A term used to describe a testing method where two or more variations of a design are presented to users to see which one does better. Generally the measurement is based on key business metrics.

Confidence Interval
A confidence interval is a range that estimates the true population value for a statistic. A confidence interval is a way we can understand the role of sampling error in the averages and percentages that are ubiquitous in user research.

Competitive Analysis
Competitive Analysis is a research approach in which a comparison is made of two or more competing or similar designs.

Dark Pattern
The term 'Dark Pattern' is used to describe design patterns and practices that may be sneaky, tricky, or carry a deliberately applied illusion about them. These Dark Patterns aim to exploit the user's tendency to be persuaded or manipulated to complete a task or provide information that the user would not normally divulge or carry out. Dark patterns can take form at all levels of design.

Formative Research
Research carried out with the intent of capturing qualitative or quantitative data that can help mold or form a product, service or design. As such, it's usually research that is done when a product, service or design is being first created, or as part of a redesign effort.

Guerrilla Usability Testing
Guerrilla Usability Testing is a term that is used to refer to the practice of conducting high level, quick, and cost efficient tests. One such guerrilla usability test is a Hallway Test.

Hallway Test
The term 'Hallway Test' is used to refer to a method of usability testing in which random users (who might be walking by in the hall) are recruited to participate in a usability test. Hallway Tests are generally used when timelines and tight deadlines are preventing a greater amount of resources. It is also a fantastic method of testing early designs as it helps identify large scale design problems that are still being worked out. This method of testing might be considered an example of a Guerrilla Usability Test.

Halo Effect
The Halo Effect refers to a generalization that is made based on one or more outstanding characteristics of a person, product, service, or design which results in an overly favorable evaluation of the entirety of that which was evaluated.

Heuristic Assessment or Evaluation
A Heuristic Assessment is when a member or members of a UX Design Team conduct a "best practices" evaluation of a product, service or design with the explicit goal of identifying usability focus points.

Developing or defining an idea.

Information Architecture
The practice or invocation of making structural design decisions relating to the relationship of information or content that exists, or will exist in a User Interface.

Interaction Design Principles
A set of general principles that provide guidance in determining appropriate system behavior in a variety of contexts.

Mean (numeric)
The Mean number is the average number, calculated by adding all the other numbers in a group, then dividing the total number by the count of numbers in the group. Example: The average of 5, 6, 7, 8, 9 is calculated in this way: (5+6+7+8+9)/5. The mean number of that group is 7.

Median (numeric)
The Median number is the number in the middle of a sorted list. For example, if the list is 10, 3, 5, 4, 11, then the sorted list would be 11, 10, 5, 4, 3 or 3, 4, 5, 10, 11. The Median for both of those lists is 5. 

In the case where there are an even number of values in a list such as 11, 10, 5, 4, 3, 2, then to get the Median, then mean number of the two middle numbers would be gathered. In other words, 5+4/2. The Median of this list would be 4.5.

Mode (numeric)
The Mode number is the number that appears most often in a list of values. For example, if the list is 11, 10, 5, 5, 4, 3, 2, 1, then the mode is 5 because it appeared two times. 

If there is no repeated number in the list, then there is no mode. 11, 10, 5, 4, 3, 2, 1 does not have a mode.

The Multi-channel Experience
The Multi-channel Experience is a way of referring to the interconnection between hardware screen resolutions of various sizes and how a screen design, or user interface is served up within each based on the users contextual needs, and the platforms capabilities. One design might show all functions of the UI in the desktop display, however when viewed on tablet a less complex version may be served up. Further, a mobile screen may show only the minimum functions from the full site.

Parallax Scrolling
Parallax Scrolling is the term used to identify a design technique where a page's code is configured so that images set at different layers move in different ways based on a user's scroll input.

The user who is observed as they complete tasks in a user test. When we refer to them as a participant, we focus on their role in a session as a target user.

A persona is a profile document of a fictional person that consists of a compilation of the main qualities, characteristics, goals, frustrations and other possible data points of a target user group or archetype for an interface or design. The purpose of personas is to reduce data to usable sizes that are both representative and workable.

Qualitative Research
Tells you why you have the problem and is used to collect insights from users to drive design.

Quantitative Research
Tells you what your problem is and involves collecting and measuring research with statistical significance.

Range (numeric)
The "Range" is the difference between the largest and smallest values in a list of numbers. For example, the range of 11, 10, 5, 4, 3, 2 would be calculated like this: 11-2. The range of this last example is 9.

Responsive Web Design
Responsive Web Design (RWD) is a term used to describe a way of planning and designing for the the possibility that the interface will be viewed on varying platforms and screen resolutions. It aims to create the best experience for various strategic channels. See also The Multi-channel Experience above.

Summative Research
Research carried out after a product, service or design has been completed. Usually this sort of research is intended to help validate that design goals have been met. As the name implies, it's a way of summarizing an effort.

(adapted from "The Handbook of Usability Testing")
Usability, as it pertains to the User Experience industry, is the measure of how well a design meets a users needs and expectations without causing them hindrance, hesitation, or question.

Some contributing factors in gauging usability are...
  • How satisfied is a user with the design?
  • If the user hasn't used the design for a period of time, how easily or quickly can they get back up to speed?
  • After learning the design, how quickly can a user make their way through tasks?
  • How many errors do users encounter? How severe are those errors? Can the user recover easily from the error?
  • How easy is it to use the design for the first time?

Usability Study
The total number of testing sessions.

Usability Testing
The process of observing representative users performing realistic tasks with a product so that improvements can be made.

Usability Test
A single testing session.

A person for whom a product is designed. Also called "Representative User", "Targeted User", or "End User". In usability testing, we recruit a target user who becomes a participant in the study.

User Centered Design
User-centered design (UCD) is often referred to as a process of identifying the usability or user experience focus points within a product or service in order to instantiate the new into existence, or better the designs of the past. Through focusing on the user's needs and expectations UCD can at times eliminate or prevent points at which a user might hesitate, be held back, or become road-blocked in their effort to get through a process, to get through a series of screens, or to become proficient with a product.

UX Assessment or Evaluation
A UX Assessment is when a member or members of a UX Design Team conduct a "best practices" evaluation of a product, service or design with the explicit goal of identifying usability focus points.

UX Findings
UX Findings are inferences, or conclusions that a User Experience practitioner, or team of practitioners makes from analyzing the data and/or activities tied to a research effort.

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