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Random numbers justinmind8/7/2023 ![]() The term "soft 404" was introduced in 2004 by Ziv Bar-Yossef et al. Some websites report a "not found" error by returning a standard web page with a "200 OK" response code, falsely reporting that the page loaded properly this is known as a soft 404. For instance, Lego's 404 page shows an image of a Lego character searching for a missing brick, while Amazon's 404 page displays the image of a dog with a message about conservation. Some websites have also used their 404 pages to showcase their brand personality, humor, or social causes. For example, Google's 404 page features a broken robot and a link to its homepage, while GitHub's 404 page shows a random image of a parallax star field and a link to its status page. Many websites have customized their 404 pages with creative designs, messages, or features to entertain or assist their visitors. Since then, 404 errors have become one of the most common and recognizable errors on the Web. The user reported the error to the NCSA team, who fixed the link and added a humorous message to their 404 page: "We're sorry, but the document you requested is not here. The page had been moved to a different location, but the link had not been updated. The first documented case of a 404 error appearing on a web page was in 1993, when a user tried to access a page about the Mosaic web browser on the NCSA website. He also said that he considered using "400 Bad Request" instead, but decided that it was too vague and technical. The term "404 Not Found" was coined by Berners-Lee himself, who explained in a 1998 interview that he wanted to make the error message "slightly apologetic". The number 404 was chosen to indicate that the requested file was not found on the server. This software used a simple file system to store and retrieve web pages, and it assigned a three-digit number to each type of request and response. In 1992, Tim Berners-Lee, the inventor of the Web, and his team at CERN, the European Organization for Nuclear Research, created the first web server software, called CERN httpd. The origin of the 404 error code dates back to the early days of the World Wide Web. A 404 error indicates that the server itself was found, but that the server was not able to retrieve the requested page. Because these two options require special server configuration, most websites do not make use of them.Ĥ04 errors should not be confused with DNS errors, which appear when the given URL refers to a server name that does not exist. In the first case, it is better to employ URL mapping or URL redirection by returning a 301 Moved Permanently response, which can be configured in most server configuration files, or through URL rewriting in the second case, a 410 Gone should be returned. The HTTP specification suggests the phrase "Not Found" and many web servers by default issue an HTML page that includes both the 404 code and the "Not Found" phrase.Ī 404 error is often returned when pages have been moved or deleted. At the HTTP level, a 404 response code is followed by a human-readable "reason phrase". HTTP's use of three-digit codes is similar to the use of such codes in earlier protocols such as FTP and NNTP. The following two digits indicate the specific error encountered. In code 404, the first digit indicates a client error, such as a mistyped Uniform Resource Locator (URL). UX for Lean Startups: Faster, Smarter User Experience Research and Design by Laura Klein ( )ģ.When communicating via HTTP, a server is required to respond to a request, such as a web browser request for a web page, with a numeric response code and an optional, mandatory, or disallowed (based upon the status code) message. ![]() Lean UX: Designing Great Products with Agile Teams by Jeff Gothelf and Joshua Seiden ( )Ģ. Want to learn more? Read the full guide to Lean UX by Justinmind ( ) and review the following books □ġ. In any case, if a feature was designed in a way that doesn't meet the users' expectations, the constant testing and validations will reveal what went wrong and when. ✅ Data-driven – this approach lies on data to make decisions. □□ □□ User-centered approach – there's a lot of similarity between User-Centered Design (UCD) and Lean UX, because both methods focus on the users and their needs at each phase of the design process and let the constant validation guide them the way. ![]() ![]() ⏳ Time saving – since this method is collaborative and doesn't focus on heavy documentation, it prevents the design team from wasting time. □ Cost-effective – you validate decisions all along the process and this helps you to create solid base on which a product can be built. This means that designers make decisions based on hypotheses and not their personal preferences. Lean UX is a user-centered design process that embraces Lean and Agile development methodology to reduce waste of time and build products focused on the users. ![]()
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