The aim of Ambient Assisted Living (AAL) is to help people (e.g., elderly, children) to have an independent and monitored life with the use and assistance of technology. For this population, specific technologies have been developed; many of those technologies (i.e., hardware, software) use sensors and embedded systems. Although there are many studies that address AAL approaches, no systematic literature reviews have been presented that cover hardware and software working together and take into account specific disabilities. Therefore, in this paper a systematic literature review of primary studies related to AAL is presented, which is focused on establishing software and hardware relations working together in order to solve or support spec...