Reuse of rules in a mapping-based integration tool

Abstract

In the Internet of Things scenario, the integration of devices with business application systems requires bridging the differences in schemas of transmitted and received data. Further, different device configuration may introduce a variety in a data schema of a single device. Currently, mitigating this schema variation problem requires a manual adaptation of data transformations between the devices and business application systems. In this paper, we propose an algorithm that uses previously created transformations to automatically adjust the new ones for schema variations. The algorithm only considers isolated schema element information in order to find possible candidates in a transformation repository. Schema elements can be compared using multiple comparators, and the result is combined in a final similarity metric. Both, the algorithm and the repository are implemented as a module of AnyMap – a mapping-based integration tool. We also present a case study on which we evaluated the approach.