Modern web-design this complex concepts. In a web design set of technical decisions must be to provide achievement of objects in view.

The choice of the certain technical decision is influenced with knowledge of a target audience.

Visitors of a site can be divided conditionally into 3 groups.

It is possible to attribute the most advanced Internet users to the first group. Visitors of this group quickly perceive the new information, are interested in novelties in sphere of information technologies. For the majority of these users the vanguard design approaches. However the quantity(amount) of such users makes about 4-5 %.

It is possible to attribute a great bulk to the second group of visitors - those who buys the goods or  services. Basically it is a solvent part of the population, ready to pay money. It is the basic source of incomes. These visitors are guided by necessity and financial expediency at a choice of design.

in group it is possible to attribute all other users who have old computers and out-of-date programming maintenance to the third. This nonexpensiv group of the population does not represent interest.

Bissnes sites are guided by the second group of users.

There is a number(line) of parameters on the basis of which the design can be counted accomplished(perfect):

- correct display of pages of a site in different browsers, on the different sanction.

- The minimal speed of loading of separate pages of a site

- The optimized format of figures corresponding to standards.