Abstract
Deaf people (Teman Tuli) in Indonesia currently use the Indonesian Sign Languages (Bisindo).Nevertheless, it has numerous versions geographically.To smooth communication between them, the Indonesian government has standardized the Indonesian Sign System (SIBI) for the learning process at special schools (SLB/B) as a printed dictionary.The dictionary contains pictures to represent every sign.As it is in printed 2D format, Teman Tuli and normal people (Teman Dengar) cannot understand the exact hand movements.Teman Dengar also do not get enough access to the SIBI learning information.Moreover, it is difficult to understand the rules to build sentences in Bahasa In-donesia.Technology is growing, and the number of electronic dictionary users is increasing.We developed a web-based application Indonesian Sign System Online Dictionary (KADARING SIBI).The dictionary implements a stemming algorithm to find each root word of the text.Then, each Sign is rendered with a GIF animation.Users easier load and understand a picture or an animation re-vealing a word.Fifty respondents with different backgrounds participated in several methods tested on the application.The Black Box Testing method pro-duces an average success value of 95%.The acceptance testing with the Mean Opinion Score method has a MOS value of 8.72, which is a good category.