1. A designer is developing a user interface for a new simulation video game whose intended purchasers are dedicated gamers, and who would be glad to provide input. Because demanding users with preferences and deep knowledge of the required tasks will employ the interface, the designer is likely to use the a0 design model for implementing user-centered design.

2. After the beta version has been tested, a product will go through final a0, followed by general release.

3. Methods of evaluating the needs of end users can occur throughout the development period, as in the case of participatory design, or a model such as contextual design can occur at the beginning, during the requirements a0 phase of the software development life cycle.

4. A software designer delivers software that displays simplified Chinese characters to a client in Taiwan, a nation that uses only traditional characters. This makes the interactive material distracting and difficult for Taiwanese users to read. Rather than a failure in program logic, this would be considered a flaw in the execution of the user a0.

i do not get the question.

a  social news website  is an  internet  website  that features  user-posted stories. such stories are ranked based on popularity, as voted on by other users of the site or by website administrators. users typically comment online on the news posts and these comments may also be ranked in popularity. since their emergence with the birth of  web 2.0, social news sites have been used to link many types of information, including news, humor, support, and discussion. all such websites allow the users to submit content and each site differs in how the content is moderated. on the  slashdot  and  fark  websites,  administrators  decide which articles are selected for the front page. on  reddit  and  digg, the articles that get the most votes from the community of users will make it to the front page. many social news websites also feature an online comment system, where users discuss the issues raised in an article. some of these sites have also applied their voting system to the comments, so that the most popular comments are displayed first. some social news websites also have a  social networking  function, in that users can set up a user profile and follow other users' online activity on the website.