Data warehousing alternatives for mobile environments
Ioana Stanoi, Divyakant Agrawal, Amr El Abbadi, Shirish Hemant Phatak, B. R. Badrinath · 1999
With rapid advancement in technology, mobile devices are increasingly becomino the norm.These devices are char-P acterized by their need to operate even when they are disconnected from the fixed non-mobile world.Since existing software technology is tuned to applications that operate in a fully connected world, this requirement of disconnected 6peration creates a need to adapt existing software technology to a partially disconnected world.Databases and filesystems have already been adapted to operate in a partially disconnected environment.However, little work has been done in the context of data warehousing in such an environment.We believe that there is a real need for adapting existing data warehousing technology for the mobile world.In this position paper, we show how techniques for hierarchical data warehouse management can be applied to data warehouses in a mobile environment.The techniques can be extended for other mobile applications.We present a variety of alternatives for systems in which some of the sources of data as well as the data warehouse itself is mobile. 1 Introduction Traditional Data Warehousing models are restricted to merging information from and transmitting it lo a set of connected components.This model involves a set of base sources and a set of views that derive data from one or more base sources.Client applications run on the warehouse executing decision support queries, while the warehouse is connected to the data 'These authors were supported in part by NSF under grant numbers CCR-9712108 and ElA9818320.'These authors were supported in pan