A time-and-value centric provenance model and architecture for medical event streams

Min Wang, Marion Blount, John Davis, Archan Misra, Daby Sow
2007 Proceedings of the 1st ACM SIGMOBILE international workshop on Systems and networking support for healthcare and assisted living environments - HealthNet '07  
Provenance becomes a critical requirement for healthcare IT infrastructures, especially when pervasive biomedical sensors act as a source of raw medical streams for large-scale, automated clinical decision support systems. Medical and legal requirements will make it obligatory for such systems to answer queries regarding the underlying data samples from which output alerts are derived, the IDs of the processing components used and the privileges of the individuals and software components
more » ... ng the medical data. Unfortunately, existing models of either annotation or process based provenance are designed for transaction-oriented systems and do not satisfy the unique requirements for systems processing high-volume, continuous medical streams. This paper proposes a simple, but useful, hybrid provenance model called Time-Value Centric (TVC) provenance. In this model, each entry in the output data stream (e.g., an output alert) is linked to some specific time windows of incoming data samples that contribute to the generation of the particular output entry, with the time-dependence potentially varying with the data values. An initial design of the provenance storage and querying architecture for this TVC model is also presented.
doi:10.1145/1248054.1248082 dblp:conf/mobisys/WangBDMS07 fatcat:okjpieknurbrzofjugkv6lj4ye