|This study aims to build a knowledge-based system of psychology in diagnosing autism disorders in early childhood based on Android that can help users find out information gross motor developmental disorders in children. This research receipts prototype system development methods . Inference engine used to use forward chaining . The final results obtained from this study is an expert system for the diagnosis of autism in early childhood based on Android where users choose the data contained in the symptoms of options. Users will get the results of the consultation in the form of conclusions disorder diagnosis and treatment implementation.
Keyword : diagnosis, autisme, forward chaining, waterfall, expert systems