Response time1 second is direct res

Response time
1 second is direct response
3 second is normal
Limit the image, large media contents
Use compression methods
Thumbnail image first then if user wants resize it to big
HTML text to allow the browser to represent a page before the images are fully loaded

Interaction efficiency
time users have to spend for navigation and input is also important for a system’s overall efficiency
mouse activities playing a dominating role.
Efficient interfaces of this sort minimize the distances to clickable elements
the size of elements should important

Colors
colors look entirely different on each device type /CRT, LCD/
we have to consider the fact that people with limited color vision
properly used colors can provide valuable support, e.g., red signals danger, green signals that everything is alright
we should also bear in mind cultural differences in the meaning of colors

Text layout
background of Web pages should not have a structure or pattern
we should speak the “user’s language”,

Page structure
we should avoid the need for horizontal scrolling
The page structure should also allow users to print pages.

Navigation structure
non-linear navigation has to be avoided at any cost.
navigation structure as quickly as possible, allowing users to “memorize the sitemap
(“Where am I?”), (“What can I do or find here?”), (“Where can I go?”)
mind that browsers offer additional context-independent navigation elements (“Back”, “Bookmark”, etc.)

Multiculturality (วัฒนธรรมที่หลากหลาย)
Colors:
Symbols:
Language: It is extremely important to speak the language of your customers on the Web
Representation of information: 11/03/2003 would be March 11 in Europe, but November 3 in the USA.

Confidence-generating measures (มาตรการที่ก่อให้เกิดความเชื่อมั่น)
number of employees,
postal address, e-mail address, and phone number;
Mechanisms to assist customers
Activities to customers
Policies like customer-friendly warranty or money-back guarantee, etc.;

Others
Animations should be avoided,
If properly used, icons support