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5

A success rate is one of many metrics used for measuring/quantifying usability. As http://www.measuringusability.com/blog/essential-metrics.php describes, if a task can not be completed, the product is not usable. "If users cannot accomplish their goals, not much else matters." The methods used for determine success rate will vary greatly depending upon: ...


5

Perhaps it simply means that you should focus on being a UX researcher instead of a UX designer. There are generally fewer roles for researchers than designers, but there are still opportunities for those of us who love UX research, and who understand design but aren't designers. Personally, I've been a UX researcher for 12 years. I'm definitely not a ...


3

Twitter is still a delivered medium like sms or email. It makes no sense to offer an edit option because people will have already received the original tweet. UI has to follow the fundamental nature of the system. Even the delete option is only offered on the basis that it is fallible and clients might not respect it.


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You need to set your business goals and based on that you can set you ways to measure the success. Think about an e-commerce site, or think about a social network. The goals of the business will be completely different, i.e. % abandoned baskets, conversion, etc. Tools like Google analytics help to make sure you are able to constantly monitor the site and ...


2

There are many UX designers/developers that come from a visual design and programming background, and they don't have much interest or idea bout usability research and testing. Do you think that they should be the one's driving UX design and decisions? One of the biggest problem I see with UX design these days is the obsession and focus on the user ...


2

You can have several levels of "success rate", but in essence it's a matter of saying "yes" or "no" to this question: "Did the user accomplich the task?" Quote from the book, p65: To measure task success, each task [...] must have a clear end-state. It's similar to "effectiveness" in the ISO 9241-11 definition...


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Find some representative users and 'test' it on them (watch them using your tasks on your site) - you'll learn a lot.


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Where to Start? As the comment above asked, how do you know there are usability issues? Why is a redesign necessary? Are there new requirements or are the old ones not being met? Is there any data/user feedback at all to suggest known problems or desired new features that you can start with? Is there any existing customer feedback mechanism (if not are ...


1

You can't fix what you don't know is broken. As you state, your intimacy with the product means you're likely not an unbiased critic. So, as for where to start, find out what doesn't work for your audience. Start with some questionnaires or interviews or surveys. Talk to the support desk to see what questions they are asked the most. Find out if there is a ...


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Regarding the rounding error, if you store in the unit they entered initially (or as a single type of unit), and then convert on display, you should only get a small rounding error but it shouldn't be compounded. Regarding the switch, I think the answer depends on why people would be switching back and forth between units. Wouldn't they typically just use ...


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This sounds like a good use case for a third party API. Here are a few options: Expedia Affiliate Network - May charge commission on booking, but have a comprehensive API available. Wego Hotels API - They offer a paid service. They will return the hotel rates for you in the metadata, but it was unclear in the documentation if they can provide airport ...



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