- Work with the client, using test sites to see which ideas best suit their needs - Build the framework – or 'architecture' – of the site and add the command buttons, payment systems and video, sound or animation - Make sure that the new site can be smoothly integrated into the client's existing network, for instance linking with a customer database - Work on the site's appearance, often with a web designer - Put in measures to deal with user access and security - Test the site under construction to find and fix any problems – or 'bugs' – before it goes live