The data in NeTEx is relevant for a number of types of mobile application – for example,  stop finding and journey planning. NeTEx includes web services that can be used to support certain mobile applications directly (e.g. stop finding); others such as journey planning or fare finding will typically involve a specialised API to an engine that is populated with NeTEx data. Note that the communication framework shared with SIRI v 2.0 also includes a specification for automatically mapping XML to JSON and other lightweight formats especially suitable for large scale mobile applications.