Abstract: Mobile distributed real-database systems （MI）RTDBS） are viewed as three-tier architecture. This paper presents DMVOCC-DA-2PLV （Distributed Multiversion Optimistic Concurrency Control with Dynamic Adjustment using Two-Phase Local Validation） protocol for p

Key words: Mobile distributed real-time database systems, Muliversion optimistic concurrency control, Multiversion dynamic adjustment of serialization order, Partial validation, Commit, Broadcast disks