The master thesis is dedicated to the area of information system with a focus on communication with customers. The main goal is to design and code prototype lightweight, type and modern architected web app, that can help be more efficient in communication between business and customers in small companies. The thesis sub-objectives are evaluation current market status with Customer relationship management systems (CRM's), identify specifications of type applications and the way they are developed. Application requirements evaluation, application architecture creation, programming, testing and implementation. Last but not least is verification of established goals. Readers are guided in thesis gradually from theoretic part where information s...