5 core components to usability

This article is intended for web designers, but some articles can be easily applied if they are designed for business (see below). When you run a business, you know that you design graphics at some point - sketches, newsletters, Instagram posts or business cards

The goal when designing something is to keep it simple and focused at all times. You want people to know what you are selling, and what to do next in a short time. It is like a 140 charter we dislike (for those familiar with Twitter). Before working on the next project, please see "Availability of the five core components of Nielsen Norman Group".

Learning ability - Users can learn how to use products for the first time easily

[bctt tweet = "The goal when designing something is to always keep simplicity and concentration" Username = "Ed_Troxell"]

Learning ability - Users can learn how to use products for the first time easily

iPhone: There is no user guide. Yes, the first departure may get irritated, but just click on something to discover something new.

iPhone: Since the main functions are the same, it can run without problem in 4 to 6 seconds.

Website: If I have been to your website for a while, can I still work? Or will it take time to recalculate?

Website: Always test your website and process yourself. Please test it for you! I just rewrote my homepage and created five tasks (thanks to advice from West Coast UX) to allow some of the selected people to pass and test my site Did. You want to give them specific tasks

A small number of participants are used in the usability test of the lab base. Five people are common sample sizes, rarely more than 20 people. However, except for remote usability tests that have not been improved. These small samples work as people do not change so much, as usability test focuses on cognition, problem solving behavior, and how the brain works. Problems arise when usability testers incorporate other research goals into their usability tests. For example, "What is the fee for this service?", "What kind of brand value will this website have?", "How do you feel about this design?" It may be nice to ask someone who votes in the next election, but you can get the answer, but having a small number of samples means that there is no predictable value. There will be more subtle bias

In 1993, a famous usability specialist Jakob Nielsen published a scientific thesis on the analysis of the results of various usability studies. He decided that when you add more participants, the possibility of identifying more usability problems in your design will decline. In the sample of 5 users, the design has 75 to 80% availability problem. In agile setting, the goal is to repeat 5 tests by iterative design. The more users you add, the less your reward.

User research and usability are related to observed behavior of human beings. The usability test is the way to identify usability problems. If you need to maintain a sterile barrier between employees and customers, please use at least usertesting.com. An authorized solution is like using a questionnaire as a way to pass notes through the wall between the designer and the real user. This does not increase sympathy. Too many organizations deal directly with user surveys as breach of contract. I know that there are very subtle situations such as health data and financial data. However, you can do a user survey and never interact with the actual customer. If you are really interested in acquiring real data rather than hiding the company's ass, you can hire people who match the target's behavior and not reveal your identity.