Research indicates that AAC (Augmentative and Alternative Communication) has the potential to change the lives of many people with complex communication needs, but is often under-utilised and/or abandoned. Therefore, the research aims to investigate the meaning, value, and purpose of AAC for different stakeholder groups, as well as to what extent these are shared or unique? This information will support Speech and Language Therapists to understand the meaning, value, and purpose of AAC for key stakeholders, and therefore adapt intervention to meet these needs. It can also support families considering AAC in decision making. Participants can also benefit through reflecting on what AAC means to them. It is also an important part of evidence based practice to listen to the voice of the client and family.