RationaleWith this application, a Deaf patient can view information on how to take medicines in South African Sign Language. The scenario is as follows; a Deaf patient visits a public hospital pharmacy with a mobile phone and hands it to the pharmacist (who already knows about the application) with a prescription from the doctor. The pharmacist uses the application on the mobile phone to instruct the Deaf patient on how to take the medication correctly. A mobile phone will be used because it is already a common tool for communication among Deaf people and some development has been done with these devices. The key idea is to use the mobile phone to display videos containing sign language. Deaf patients will not have to rely on an interpreter being present during medicine dispensing. The mobile system thus helps a Deaf user communicate with a pharmacist, and vice versa, without sign language translation. All of the possible video messages are stored on the phone to keep costs down. However, if a communication break down occurs, we provide a video relay service to support an interpreted conversation with a remote SASL interpreter or hearing family member who can sign. Video relay is very common in developed countries, but there is no such system, commercial or subsidized, in South Africa. We plan on using Skype initially for video relay to clarify issues not covered by 'canned' interactions. SignSupport_v3 will provide such a relay service at a low cost on the mobile device where the Deaf user signs to an interpreter with the front-facing video camera; the interpreter speaks to the pharmacist, and similarly in the opposite direction. We do not utilize automatic natural speech or sign language recognition because these technologies cannot currently guarantee enough accuracy for medical instructions. This mock-up is therefore not an expert system and does not use artificial intelligence.