The development of system model using the traditional System Development Life Cycle often faces big problems. One of the biggest problems is determining the process model. The existing requirements analysis method is not good enough in producing process model. There are many invalid process models, although they have gone through a series of observations on users. To deal with this, a 'soft' or human-centered method is therefore required. Problems are seen and determined from the point of view of the people involved in the problems. One method that can be used to solve problems is the Design Thinking approach. Design Thinking is the process of creating new ideas and innovative approaches that can solve user problems. This paper proposes the use of an alternative Design Thinking approach in conducting a requirements analysis on the development of Trash Bank system with an interactive qualitative approach. The approach taken is to integrate the concept of Design Thinking in the requirements analysis stage. Through collaboration model the Design Thinking to Requirements analysis, the resulting process model is more valid because the process of exploring the requirements becomes deeper, which is based on user experience. The exploration of user experience from Collaboration model will become the basis for process modeling. According to the approach taken, a more humane and more explored prototype of the system flow is obtained from the human attitude that is involved in the process.