Marketing. You have to be able to metaphorically paint a portrait of the target audience, come up with a unique selling proposition, and analyze your competitors. Analytics. It’s important to be proficient in business task analysis methodologies and know how to map user pathways to achieve the goals of these tasks. Psychology. It’s helpful to utilize user behavior patterns and principles of visual perception. Technical knowledge. All work is done in computer programs. Nothing will work without them. Personal experience. Extensive previous exposure to design principles will allow you to track modern visual trends and put them into practice. Layout principles. Awareness of these is necessary for interacting with the layout designer when transferring the site to them.