|MERONI GIOVANNI||Cycle: XXX |
Section: Computer Science and Engineering
Tutor: PERNICI BARBARA Major Research topic
:Artifact-driven Business Process Monitoring
Advisor: PLEBANI PIERLUIGIAbstract:
Today, business process management is moving from a single-party perspective, where processes are confined inside a single organization, to a multi-party one, where portions of the process are externalized to other organizations. As a consequence, manipulating goods that belong to other organizations (e.g., as in the logistics domain) is becoming a quite common practice. Since organizations can enforce the execution of only those activities under their responsibility (i.e., internal) to adhere to the planned process execution, they have no control on the portions of the process that are externalized. Similarly, the owners of the goods cannot be sure that their goods will be manipulated as originally agreed with the other organizations. Consequently, unexpected deviations in the execution of the process and in the usage of the goods may occur. If not promptly identified and notified to all the organizations participating to the process, such deviations may cause delays, coordination problems, and consequently dissatisfaction for the customers.
This thesis addresses these issues by proposing a novel technique to monitor the execution of multi-party processes, named “artifact-driven process monitoring”. This technique exploits the Internet of Things (IoT) paradigm to turn the goods participating to the process into smart objects, equipped with sensors, computational devices and transmission interfaces. This way, smart objects are able to automatically and autonomously monitor the process the participate to, and to detect when the process deviates from the expected behavior. To let smart objects be aware of the process to monitor, an extension of the Guard-Stage-Milestone artifact-centric modeling language, named E-GSM, has been defined. With respect to other modeling languages, E-GSM does not enforce dependencies among activities. This way, deviations in the execution of the process can be tracked at runtime without interrupting the monitoring. Additionally, E-GSM provides constructs to determine, based on the information collected by the smart objects’ sensors, when activities are started or ended. E-GSM also allows to model and monitor the lifecycle of the goods, thus allowing to detect when they are misused. To relieve process designers from learning E-GSM, and to reuse preexisting process models, a methodology to instruct smart objects given BPMN collaboration diagrams has also been developed. Additionally, a methodology to determine to which extent smart objects are suited to monitor a particular process, given their sensing capabilities, has been introduced. To validate the artifact-driven process monitoring approach, a prototypical monitoring platform has been developed and tested against real processes and both historical and real-time data from the logistics domain.