About my work. Past and present.

Enterprise IT Architecture:

I am currently engaged in projects involving enterprise architecture, information quality, data strategy and data management.

IT Architecture:

While at Credit Suisse, I worked in the central data architecture team. Our main responsibility was the definition of standards and conventions for data architecture across various banking domains. We worked together with projects to ensure that the architectural and technology standards and best practices were represented in projects and provided architecture oversight of solution designs. Data architecture themes covered included data modelling, data governance, data integration.

Research at University of Basel and Dissertation:

Most of my publications are available via my DBLP entry or here.

My PhD dissertation “Dynamic Data Replication in the Grid with Freshness and Correctness Guarantees” (download here) explores architectural issues and performance aspects of Data Grid infrastructures. The objective is to develop a scalable infrastructure that is capable to dynamically manage replicated data in the Grid while at the same time providing freshness and correctness guarantees. We propose a decentralized middleware which can be deployed on top of any Grid (or any distributed, heterogeneous infrastructure). The difficulty is to ensure that such an infrastructure can offer scalability, performance and correctness.

The thesis presents new approaches for the correct synchronization of updates in a dynamic manner, replication management, and freshness guarantees in a Data Grid. These approaches are founded on formal theoretical background and implemented in a full-fledged prototype in a realistic Grid environment. These approaches have been proven to be scalable by means of an extensive analytical and experimental evaluation.

This work has been partly supported by the EU in the 6th framework programme within the project DILIGENT (contract No. IST-2003-004260).