Universal accessibility is a challenging issue, one in which many factors have to be considered. The IAA system (that origin is "I Am Alive"), which was introduced for managing the registration and retrieval of victim safety information in the event of a disaster, is evaluated from a universal accessibility point-of-view. Experiments were conducted on five user groups: adult, child, elderly, visually impaired, and hearing impaired. The child and elderly groups had difficulties in conducting a task using the system's interface. An analysis of these two groups showed that the elderly group failed to hear the message, while the child group failed to understand it.