A sustainable e-commerce site analysis its target audience and their behavior patterns. Determines strategies accordingly and can reflect all this information on user experience. The development of the design and software of the site in line with this information will benefit the permanence of the site and the continuity of the system. The Densey Team gives priority to strategies in the shopping sites it develops. Based on these strategies, it builds reliable projects with a user-oriented architecture, SEO infrastructure. User-Oriented Software Architecture The Densey Team focuses on user needs and behaviors in e-commerce projects. It discovers the needs of users to mobilize and increase brand loyalty. Develops digital strategies according to consumer behavior. The minimum requirements of shopping sites are user transactions, in-site functions, and easy & fast shopping. In e-Commerce sites prepared with user-oriented software architecture, it is analyzed how the user will behave, what they expect and want to see from the first entry to the site. Many user transactions such as membership, purchases, shopping cart applications and campaign applications are developed after these analyzes. Densey knows that the most valuable service in e-Commerce solutions is "user-oriented architecture" development and develops within this understanding.