We analyze the problem of refactoring of learning object (LO) for m-Learning. We apply methods adopted from software engineering domain for redesigning the structure and user interface of a LO and aim both at increasing usability and accessibility of the learning material. We evaluate usability of a LO from the user interface point of view, following the user interface development principles that are common both for human–computer interaction (HCI) and e-Learning domains. We propose the LO refactoring framework based on user interface usability principles. In a case study, we demonstrate the refactoring of an array-sorting LO for a mobile device.