Abstract
Organisations today are constantly consuming and processing huge amounts of data. Such datasets are often heterogeneous, making it difficult to work with them quickly and easily due to their format constraints or their disparate data structures. Therefore, being able to efficiently and intuitively work with such data to analyse them in real time to detect situations of interest as quickly as possible is a great competitive advantage for companies. Existing approaches have tried to address this issue by providing users with analytics or modelling tools in an isolated way, but not combining them as a one-in-all solution. In order to fill this gap, we present MEdit4CEP-SP, a model-driven system that integrates Stream Processing (SP) and Complex Event Processing (CEP) technologies for consuming, processing and analysing heterogeneous data in real time. It provides domain experts with a graphical editor that allows them to infer and define heterogeneous data domains, while also modelling, in a user-friendly way, the situations of interest to be detected in such domains. These graphical definitions are then automatically transformed into code, which is deployed in the processing system at runtime. The alerts detected by the system, in real-time, allow users to react as quickly as possible, thus improving the decision-making process. Additionally, MEdit4CEP-SP provides persistence, storing these definitions in a NoSQL database to permit their reuse by other instances of the system. Further benefits of this system are evaluated and compared with other existing approaches in this paper.
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