With this work I want to develop a new Web tool which allows us to make maintenance tasks about on board equipment in the bus fleet of TMB. This tool has to take advantage of the new available communication systems in the buses like WiFI/3G/4G. This tool must be able to execute in a wide range of devices like Smartphones, hand-held devices, laptops, and so on. In addition, the tool must allow concurrent access and be easily scalable.