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Web Issues
- 1. Web Design Issues Thane B. Terrill Fall 2006
- 2. Web Editors Text-based editors Programs like Notepad and BBedit providers the user full control but offers little help on advanced features. It often takes a few steps to know how your code with actually look. Professional designers often find that text-based systems allow them closer control over the final results. Visual Editors Programs like Frontpage work on the assumption that everything can be done without seeing the code. Hard to fix when things go wrong. If you don’t under HTML coding, you could end up with a mess you cannot fix.
- 3. New Web Editors Programs, such as, Dreamweaver combine visual editing and text editing. Dreamweaver now includes programming tools for back-end services. The new editors allow for the addition of complicated processes via “objects.” These objects add the code required to make an advanced feature work. Great when they work and awful when they don’t. Site management and group collaboration features are now being added.
- 4. Common Image Formats GIF & PNG-8 used for images with few color variations and basic patterns does not lose “information” can be animated often used for buttons and banners JPEG used for photographs and other images that have great contrast will lose some “information” when the file is created jpegs can be reduced at many quality levels and displayed in several ways
- 5. PDF A multi-platform document delivery system based on the PostScript printing language Closely maintains the original document’s appearance regardless of the operating system. Comes with security features, such as restricting opening and printing (PDF’s security has been cracked a few times) Supports hyperlinks Byte-serving allows for pages to be downloaded one at a time. Great when you only want to see a few pages of a large document. Free viewers and inexpensive creation tools
- 6. Some New Image Formats Flash (by Macromedia/Adobe) is a vector based display system easily resizes to user’s screen small image sizes can be animated PNG (8 & 24) are replacements for GIF and JPEG. While the PNG replacement for GIF is gaining momentum, PNG 24 is not often used.
- 7. Web Languages Java - a full programming language with claims to support multiple operating systems Java Script - a text-based programming code that get interrupted by the user’s browser Perl/PHP/Python – common programming languages used to control a web server. ActiveX and .Net - Microsoft’s answer to Java Plugins -- Acrobat PDF viewer is one example
- 8. Browser Targeting Intranet / Extranet / Internet -- each has its own level of control over what can be asked of the user Required Functionality what is really required and what do you want just to look sophisticated? Multiple Pages some or all of your site can be duplicated so that multiple browsers can be targeted Test your designs on multiple systems
- 9. Web Site Statistics A web “hit” is an inaccurate method by which to measure web traffic “Unique visitor” is the most reliable. Volume is important, but the distribution of users throughout the web site is also important Are parts of your site being missed? Are parts of your site more interesting than you expected? Keep track of the screen resolution and browser versions of the visitors
- 10. Costs Many web sites appear to be free since the work comes out of other people’s work time A small site done professionally should run between five and twenty thousand dollars Corporate sites often run in the hundreds of thousands and sites like the one that ran the Olympics are in the millions.
Editor's Notes
- #2: This presentation covers some of the most common issues that are confronted by the serious web designer. Web design has many unique characteristics that make it challenging to work with. The first thing to remember is that the web is not a monolithic system. Rather, the web is an infrastructure on which a number of different technologies operate. Not only are the number of technologies involved vast, but there are few reliable standards. This results in a bewildering number of options -- some of which are dead-ends. After going through this presentation, please use the class discussion list to ask any questions that you still have. Please note that many of these issues are fairly contentious and that not everyone will agree with every conclusion reached here. In fact, this lack of agreement -- raising sometimes to status of a religious war -- is probably the only thing that the entire web development community has in common!