tailieunhanh - Designing the Mobile User Experience phần 4

Họ đang ra ngoài và về, họ được xã hội, họ đang di chuyển. Họ sử dụng các thiết bị cho các mục đích cá nhân hơn là một truyền hình hoặc thậm chí một máy tính: nó có nhiều khả năng được sử dụng bởi | DISTRIBUTION METHODS 63 capture device capabilities. Few capture device user interface differences or differences in how certain commands are interpreted. Avoid engines that purport to render to mobile or desktop environments with the same base code see Class-based Design in Chapter 5 for more details. Definitely use caution when selecting a rendering engine that purports to create applications on different platforms based on the same code always expect human intervention in translating applications between platforms. Good rendering engines are available for web sites SMS and MMS. Flash Lite allows rapid recompiling of designs for different device capabilities although it is limited in what capabilities it can access. Java ME rendering differences can be partially addressed using WURFL and other technologies again see Class-based Design in Chapter 5 for details. Sales Channels Different platforms have different advantages and challenges with regard to sales channels. These differences are largely due to the carriers business models and users willingness to pay for services. In the United States for example SMS has seen slow adoption particularly among The country relies far more on email and instant messaging and suffered from carriers creating barriers to interoperability. Thus reliance on SMS for delivery except for various youth markets will limit penetration compared to voice. However SMS is perhaps the most commonly used platform as it has the greatest coverage and its use is growing. Web browsers are very commonly available on devices but the user has to be able to both find the browser on the phone difficult on devices including a Motorola RAZR from Verizon and have a data plan that supports browser use in a reasonable fashion. Cingular s data plans as of March 2006 had 1 megabyte transfer per month charged 4 US adoption has lagged behind European adoption for a variety of reasons. First European operators originally did not expect SMS to be .