#28378
#28376
参加の仕方は一様ではない：もっと大勢のユーザに書き込んでもらうには
多くのオンライン・システムでは、ユーザの90%は読むだけで自ら書き込むことは決してしない。9%は、ほんの少し書き込みをする。システム上にみられるアクションのほとんどは、残る1%のユーザによるものである。
Nielsen, Jakob. U-Site (2006). (Japanese) Design>Web Design>Community Building>Usability
#32903
Usability of Websites for Teenagers
When using websites, teenagers have a lower success rate than adults and they're also easily bored. To work for teens, websites must be simple -- but not childish -- and supply plenty of interactive features.
Nielsen, Jakob. Alertbox (2005). Articles>Web Design>Accessibility>Children
#32904
Kids' Corner: Website Usability for Children
Our usability study of kids found that they are as easily stumped by confusing websites as adults. Unlike adults, however, kids tend to view ads as content, and click accordingly. They also like colorful designs, but demand simple text and navigation.
Nielsen, Jakob. Alertbox (2002). Articles>Web Design>Accessibility>Children
#33067
Intranet Portals: The Corporate Information Infrastructure
Over the last half year, it has become popular for large and medium sized companies to build portals to their intranets which have been spinning out of control for years. Still, many companies don't even have a single default starting page for all of their employees: some leave browsers set to boot with the browser vendor's page (an utter waste of bandwidth and time) and others have a smattering of department pages but no company-wide internal home page.
Nielsen, Jakob. Alertbox (1999). Articles>Web Design>Intranets
#33089
Productivity in the Service Economy
Yes, it is possible for white-collar workers to work smarter and become more productive. While intranet usability provides substantial initial gains, workflow usability can go much further and will save millions of jobs.
Nielsen, Jakob. Alertbox (2004). Articles>Web Design>Intranets>Workflow
#33098
The Difference Between Intranet and Internet Design
Your intranet and your public website on the open Internet are two different information spaces and should have two different user interface designs. It is tempting to try to save design resources by reusing a single design, but it is a bad idea to do so because the two types of site differ along several dimensions.
Nielsen, Jakob. Alertbox (1997). Articles>Web Design>Intranets
#33122
People rarely read web pages word by word; instead, they scan the page, picking out individual words and sentences. In a study John Morkes and Jakob Nielsen found that 79 percent of test users always scanned any new page they came across; only 16 percent read word-by-word.
Nielsen, Jakob. Alertbox (1997). Articles>Web Design>Typography>Usability
#33352
User research offers a learning opportunity that can help you build an understanding of user behavior, but you must resolve discrepancies between research findings and your own beliefs.
Nielsen, Jakob. Alertbox (2004). Articles>Usability>Research
#33448
Hyped Web Stories Are Irrelevant
The fads and big deals that get the press coverage are not important for running a workhorse website. To serve your customers, it's far better to emphasize simplicity and quality than to chase buzzwords.
Nielsen, Jakob. Alertbox (2006). Articles>Web Design>Usability>Minimalism
#33452
American English vs. British English for Web Content
Users pay attention to details in a site's writing style, and they'll notice if you use the wrong variant of the English language.
Nielsen, Jakob. Alertbox (2008). Articles>Usability>Writing>International
#33453
Usage goes down as interaction costs increase. User motivation determines how fast demand drops, following an elasticity curve.
Nielsen, Jakob. Alertbox (2008). Articles>Usability>User Interface>Interaction Design
#33454
Agile Development Projects and Usability
Agile methods aim to overcome usability barriers in traditional development, but pose new threats to user experience quality. By modifying Agile approaches, however, many companies have realized the benefits without the pain.
Nielsen, Jakob. Alertbox (2008). Articles>Project Management>Usability>Agile
#33455
Usability scores for 51 websites show some correlation between navigation, content, and feature quality, but no connections to other usability areas.
Nielsen, Jakob. Alertbox (2008). Articles>Web Design>Usability>Case Studies
#33456
Transactional Email and Confirmation Messages
Automated email can improve customer service, strengthen relationships, and help websites bypass search engines. But most messages fared poorly in user testing and didn't fulfill this potential.
Nielsen, Jakob. Alertbox (2008). Articles>Web Design>Usability>Email
#33457
When to Use Which User Experience Research Methods
Modern day user experience research methods can now answer a wide range of questions. Knowing when to use each method can be understood by mapping them in 3 key dimensions and across typical product development phases.
Nielsen, Jakob. Alertbox (2008). Articles>User Experience>Usability>Methods
#33458
About Us Information on Websites
We found a 9% improvement in the usability of About Us information on websites over the past 5 years. But companies and organizations still can't explain what they do in one paragraph.
Nielsen, Jakob. Alertbox (2008). Articles>Web Design>Usability>Writing
#33459
Finding addresses and location information on company websites has gotten dramatically easier, but users increasingly turn to search engines first for this task.
Nielsen, Jakob. Alertbox (2008). Articles>Web Design>Usability>Geography
#33460
New user testing of site maps shows that they are still useful as a secondary navigation aide, and that they're much easier to use than they were during our research 7 years ago.
Nielsen, Jakob. Alertbox (2008). Articles>Web Design>Usability>Sitemaps
#33461
Year's 10 Best Application User Interfaces
Many winners employ dashboards to give users a single overview of complex information and use lightboxes to ensure that users notice dialogs. Also, the Office 2007 ribbon showed surprisingly strong early adoption.
Nielsen, Jakob. Alertbox (2008). Articles>User Interface>Usability
#33464
Established wisdom holds that good error messages are polite, precise, and constructive. The Web brings a few new guidelines: Make error messages clearly visible, reduce the work required to fix the problem, and educate users along the way.
Nielsen, Jakob. Alertbox (2001). Articles>Writing>Technical Writing>Help
#33596
Intranets are getting more strategic, with increased collaboration support. Team size is growing by 12% per year, and platforms are becoming integrated. Improving usability increased use by 106% on average.
Nielsen, Jakob. Alertbox (2009). Articles>Web Design>Intranets>Usability
#34289
World's Best Headlines: BBC News
Precise communication in a handful of words? The editors at BBC News achieve it every day, offering remarkable headline usability.
Nielsen, Jakob. Alertbox (2009). Articles>Web Design>Writing>Case Studies
#34290
Information Architecture Task Failures Remain Costly
Task success is up substantially compared with usability statistics from 2004. Bad information architecture causes most of the remaining user failures.
Nielsen, Jakob. Alertbox (2009). Articles>Information Design>Usability>Assessment
#34291
First Two Words: A Signal for the Scanning Eye
Testing how well people understand a link's first 11 characters shows whether sites write for users, who typically scan rather than read lists of items.
Nielsen, Jakob. Alertbox (2009). Articles>Web Design>Writing>Usability
