As the portable devices such as smartphones became widely used, the demand for programming using not a personal computers (PC) but a smartphone is increasing. There are, however, several challenges in programming only using a smartphone. To address these challenges, this paper proposes a new programming paradigm based on a new visual language for smartphones. In this language, two aspects of a program, i.e., the control of execution order and the composition of data dependencies, are separately described. These two aspects are connected with the primary building blocks called modules. With this separation, the exploration of code is not mainly based on scrolling but transitions between these aspects. It is considered that the number of displayed modules is small enough to be explorable using a small screen.