As Business Intelligence architectures evolve from off-line strategic decision-making to on-line operational decision-making, the design of the backend Extract-Transform-Load (ETL) processes is becoming even more complex. We describe the challenges in ETL design and implementation, and the approach we are taking to meet these challenges. Our approach is centered around a layered methodology tha...

Previous research has provided metadata models that enable the capturing of the static components of a Data Warehouse (DW) architecture, along with information on different quality factors over these components. This paper complements this work with the modeling of the dynamic parts of the DW, i.e., with a metamodel for DW operational processes. The proposed metamodel is capable of modeling com...

Process control should aim at not only ensuring that controlled variables to best follow their set points, but also requiring the optimal control for the operation of the whole plant to make the operational indices (e.g. quality, efficiency and consumptions during the production phase) into their targeted ranges. It also requires that operational indices for quality and efficiency should be enh...

operational variables of a mineral processing circuit are subjected to different variations. steady-statesimulation of processes provides an estimate of their ideal stable performance whereas their dynamicsimulation predicts the effects of the variations on the processes or their subsequent processes. in thispaper, a dynamic simulator containing some of the major equipment of mineral processing...

Modern cyber-physical systems (CPS) are interdependent, mechanical and IT components that support operations in most of society’s critical infrastructures. Time again history has proven CPS vulnerable to numerous types threats, ranging from safety accidents cybersecurity malicious attacks. Current research focuses analyzing the various input vectors CPS, whether or IT, detect patch flaws vulner...