• android
• json
• json1
• mobile
• mobile applications
• mobile data persistence
• mobile devices
• mobile storage
• nosql
• sqlite

Data availability on mobile applications is a key feature required to have a better user experience, especially in offline scenarios. Mobile applications should be available both when the device is online and when it is offline. The assumption that the device is always connected to the Internet is in general too strict. Relational databases provide a solid but limited solution to store persistent data locally. In order to satisfy dynamic needs of mobile applications, alternative storage solutions should be used to offer a schema-free data layer. JSON can be used as a data interchange format for lightweight and easy manipulation. However, problems like performance and security must be considered in such mobile scenarios especially for enterprise applications. This thesis describes the analysis, design and development of a mobile storage solution. The proposed approach relies on JSON and it has been integrated into a proprietary enterprise framework in order to improve performances of the existing data layer. First of all, state-of-the-art data storages for mobile devices have been analysed, in terms of data and query model, concurrency, encryption, cross-platform support. After that, we designed and developed a new solution, based on SQLite with JSON1 extension. This standalone library has been integrated into a proprietary framework in order, to provide a performing schemafree data storage, able to store and query non-relational data in a very efficient way.