Implementing and evaluating life-log mashup platform using RDB and web services

In order to support efficient integration of heterogeneous lifelog services, we have previously proposed a lifelog mashup platform consisting of the lifelog common data model (LL-CDM) and the lifelog mashup API (LLAPI) to access the standardized data. However, it had the performance bottleneck, and was poor in the portability. To cope with these problems, we re-engineer the LLCDM and the LLAPI with the relational database MySQL and the Web services, respectively. Furthermore, we evaluate the practical feasibility through an actual development project.