"Processing" is an open source programming language and environment mainly developed for the people who are working in art and design field. Computational design can be described as the discipline that search the solution of the design problem using computational techniques. The result of the computational design is the outcome of some processed input. By means of computational design new techniques on interaction and generative design has improved. In this workshop, participants will be introduced with "Processing" development environment, learn the structure and and basics and then design using computational techniques.