My passion is Cloud Security, AI, and Digital Transformation. In the daytime, I work as a Senior IT Security Architect. My areas of expertise span public clouds (Google Cloud Platform and Microsoft Azure) and how to secure them, technical project and project management, IT operations, and information management, analytics, and artificial intelligence.

Plus, I am a tech author working on articles in the early mornings or late evenings, reflecting and sharing my work experience. But most of all, I enjoy presenting and discussing with colleagues at conferences and workshops!

I aim to share my experience from various projects I worked on in the last years. Drop me a message, if you work on similar topics and want to write an article with me or look for a conference speaker.

You can contact me by email using my private email address: webcontact (at) klaus (minus) haller (dot) net or add me on LinkedIn and Xing with a short message.

My areas of expertise

• Cloud and cloud, especially securing Azure and GCP
• Artificial Intelligence
• Project management
• Architecture, business analysis, and process (re)engineering 
• Data and information management and analytics
• Core-banking systems (especially data migration) and credit risk applications
• Test center organization and test management
• Test data management
• IT risk, IT compliance, and IT security, including ISO:27001

Publications & Presentations

Why IT Security Departments (alone) cannot guarantee secure applications, Hakin9, August 2020 Perfect AI model, broken app: Integration patterns and testing needs, AI Business, July 24th, 2020 The end of Innovation outside the Cloud, DNC Magazine, July/August, 2020  AI and self-service business intelligence – competing or complementing concepts?, AI Business, July 8th, 2020 Quality Assurance and Machine Learning Models, BCS – The Tester, June 2020 Scoping machine learning projects: The six questions each analytics translator has to know, AI Business, June 26th, 2020 Data Warehouse Teams Adapt To Be Data-Driven, TDAN.com, June 17th, 2020 Becoming a Data-driven Company, TDAN.com, May 6th, 2020 5 IT Operations Cost Traps and How to Avoid Them, InfoQ, January 18th, 2020 Making CRISP-DM Work for Embedded Analytics, TDAN.com, January 15th, 2020 Industry expert/speaker at the Swiss Finance Institute as part of the Master Class “Data and Technology in Finance” in Lugano (Jan 17th, 2020), Geneva (Sept 12th, 2019), Pfäffikon SZ (Sept 4th, 2019), and Zürich (June 5th, 2019). K. Haller: Data Analytics – Stolperfallen und Testbedarf, SQ Magazin, März 2019 K. Haller: Trends in Data Management and Analytics, tdan -The Database Administrator Newsletter, March 20th, 2019 K. Haller: Predictive Analytics und Marktbearbeitung – eine strategische Perspektive, www.vertriebsmanager.de, 28.8.2018 K. Haller: Quick Wins im Vertrieb dank Predictive Analytics, www.vertriebsmanager.de, 21.8.2018 K. Haller: Drei Gründe, warum Agile Projekte an der Unternehmensorganisation scheitern, SQ Magazin, September 2017  K. Haller: How To Deal With Shadow-IT Applications, Hakin9, September 2017  K. Haller: Computermuseen, deren Besuch sich lohnt – Ein Streifzug durch Computermuseen , LOG IN, Heft Nr. 185/186, 2016 K. Haller: Software Quality Beyond Testing In House Code, The Tester, BCS Specialist Group in Software Testing, Issue 54, September 2015 K. Haller: Testdaten und Testen von Business-Applikationen im Spannungsfeld von Effizienz und Compliance, Keynote, 37. Treffens der GI-Fachgruppe Test, Analyse & Verifikation von Software (TAV), Friedrichshafen, Germany, 5./6.2.2015 K. Haller: HER – Wenn das Smartphone die bessere Partnerin ist (Filmbesprechung), Fiff-Kommunikation des Form InformatikerInnen für Frieden und gesellschaftliche Verwantortung e.v , Ausgabe 4/2014 K. Haller: Ethische Überlegungen zum Einsatz von Data-Loss-Prevention-Tools in Unternehmen, Fiff-Kommunikation des Form InformatikerInnen für Frieden und gesellschaftliche Verwantortung e.v , Ausgabe 3/2014 K. Haller: When Data Is a Risk – DLP Tools and Their Role within IT Departments, ;login (usenix magazine), February 2014 Film review: COMPUTER CHESS: Ein Film von skurrilen InformatikerInnen und der Angst vor dem 3. Weltkrieg in den 1980ern Testdaten als Risikofaktor, Fiff-Kommunikation des Form InformatikerInnen für Frieden und gesellschaftliche Verwantortung e.v , Ausgabe 1/2014 K.Haller: Testdaten als Risikofaktor, SQ Magazin, Ausgabe 29, December 2013 K.Haller: Data-Loss-Preventation-Tool minimieren Sicherheitslücken in Testumgebung, SQ Magazin, Ausgabe 29, December 2013 K.Haller: Mobile Testing, ACM SIGSOFT Software Engineering Notes, Volume 38 Issue 6, November 2013 K.Haller: Mobile Application Testing aus Management-Sicht, presentation at Iqnite Zurich/Switzerland, September 24th, 2013 K. Haller, K. Schlude: How Scrum Changes Test Centers, Agile Record, August 2013 K.Haller: Test Data Management – Was Manager wissen müssen, keynote presentation at German Testing Night, Munich, Germany, July 4th, 2013 K.Haller: SCRUM – Untergang der Test Center? SQ Magazin, Ausgabe 27, Juni 2013 K.Haller: Test Data Management aus Management-Sicht, presentation at Iqnite Germany, Düsseldorf, April 23rd-25th, 2013 K.Haller: Test Data Management in fünf Akten, presentation at Swiss Testing Day, Zurich, Switzerland, March 23th, 2013 (best presentation award) K.Haller: Test Data Management in Practice, Software Quality Days 2013, January 15th-17th, 2013, Vienna, Austria K. Haller: Three New Technologies That Will Disrupt Your Test Organization, Software Testing, Analysis, and Review West Conference (STARWEST 2012), September 30 – October 5th, 2012, Anaheim, CA K. Haller: Neue Sourcing-Modelle für das Testing – Managed Service, Crowd, Cloud, SaaS, SQ Magazin, Ausgabe 24, September 2012 K. Haller: Disruptive Change Ahead: Cloud & SOA als Totengräber der Testing Organisation, presentation at Iqnite Switzerland conference, September 25th, 2102, Zurich, Switzerland K. Haller: Disruptive Change Ahead: Cloud & SOA als Totengräber der Testing Organisation, presentation at 10. Anwenderkonferenz Softwärequalität, Test und Innovation (ASQT 2012), 6./7.9.2012, Klagenfurt, Austria K. Haller: Test Data Management – Adressing Data Sensitivness and compliance without sacrificing productivity, presentation at Testing & Finance 2012 conference, May 16th/17th, 2012, London, UK K. Haller, F. Matthes, Ch. Schulz: A detailed process model for large scale data migration projects, 15th International Conference on Business Information Systems (BIS 2012), Vilnius, Lithuania 21-23 May, 2012 K. Haller: Disruptive Change Ahead: Cloud & SOA als Totengräber der Testing Organisation, presentation at Iqnite Germany, April 24th-26th, 2012, Dusseldorf, Germany K. Haller: Ch. Schulz: Datenmigration: Alptraum für die Tester? Presentation at Swiss Testing Day, Zurich, 14.3.2012 K. Haller: Test Data Management – Investieren oder ignorieren? SQ Magazin, March 2012 K. Haller: Strategic investments in tough times – where testing organizations should invest, testing experience, December 2011 Book Review of “Aleksandra Sowa: Geschichte Metriken – der Schlüssel zum erfolgreichen Security und Compliance Monitoring”, published on www.wirtschaftsinformatik.de, December 2011 K. Haller: Data-Privacy Assessments for Application Landscapes: A Methodology, 1st BPM Workshop on Workflow Security Audit and Certification (WfSAC), 9th Int’l Conf. on Business Process Management (BPM 11), Clermont-Ferrand, France, August 29th, 2011 K. Haller, F. Matthes, Ch. Schulz: Testing & Quality Assurance in Data Migration Projects, 27th IEEE International Conference on Software Maintenance (ICSM’11) in Williamsburg, VA am 25.-30. September 2011 T. Weingärtner, A. Bucher, K. Haller, M. Schneider: Kreditberatung in der Praxis – Was Schweizer Unternehmen von den Banken wirklich möchten, KMU-Magazin Nr. 10, Dezember 2010/Januar 2011 K. Haller: Release Upgrades for Database-Driven Applications: A Quality Assurance Perspective, testing experience, December 2010 K. Haller, A. Bucher, T. Weingärtner: IT im Kreditgeschäft – Die Trends, Schweizer Bank, September 2010 K. Haller: On the Implementation and Correctness of Information System Upgrades, 26th IEEE International Conference on Software Maintenance, September 12-18, 2010,Timisoara, Romania K. Haller: Test Data Provisioning for Database-Driven Applications, BNCOD 2010 – the 27th International Information Systems Conference, 29th June – 1st July 2010, Dundee, UK K. Haller: The Test Data Challenge for Database-Driven Applications, 3rd International Workshop on Testing Database Systems (DBTest), June 7th, 2010, Indianapolis, Indiana K. Haller: The Test Data Challenge for Database-Driven Applications, testing experience, June 2010 K. Haller: Information System Maintenance Costs: The “In-between” Challenge, 12th Workshop “Software-Reengineering” (WSR), May 3-5, 2010, Bad-Honnef, Germany K. Haller: Der optimale Weg zu Datenbank-Testdaten für Entwicklung und Testing von Business Applikationen, Presentation, Swiss Testing Day, March 17th, 2010, Zurich, Switzerland K. Haller, M. Heuberger Know-How Transfer in Core-Banking System Implementation Projects: A Case Study, Central and East European Conference on Softwware Engineering Techniques (CEE-SET) October 12-14, 2009, Krakow, Poland K. Haller: White-Box Testing for Database-driven Applications: A Requirements Analysis, Second International Workshop on Testing Database Systems (DBTest), Providence, RI, June 29th, 2009 K. Haller: Towards the Industrialization of Data Migration: Concepts and Patterns for Standard Software Implementation Projects, 21st International Conference on Advanced Information Systems Engineering, Lecture Notes in Computer Science (LNCS) 5565, Amsterdam, The Netherlands, June 8th-12th, 2009 Book Review of: A. Gadatsch: Grundkurs IT-Projektcontrolling, appeared on www.wirtschaftsinformatik.de K. Haller: Data Migration Project Management and Standard Software – Experiences in Avaloq Implementation Projects, Lecture Notes in Informatics (LNI) 138, Data Warehousing Conference – DW2008: Synergien durch Integration und Informationslogistik: St. Gallen, Switzerland, October 27th-28th, 2008 K. Haller: Datenmigration bei Standardsoftware-Einführungsprojekten, Datenbank-Spektrum, Volume 8 (25): 39-46, dpunkt.verlag, 2008 Book Review of G. Hertel, U. Konradt: Telekooperation und virtuelle Teamarbeit, appared in Wirtschaftsinformatik, Volume 2(50), 2008 and on www.wirtschaftinformatik.de W. Binder, I. Constantinescu, B. Faltings, K. Haller, C. Türker: A Multiagent System for the Reliable Execution of Automatically Composed Ad-hoc Processes, Journal of Autonomous Agents and Multi-Agent Systems, Volume 12(2): 219-237, 2006 K. Haller, H. Schuldt, C. Türker: Decentralized coordination of transactional processes in peer-to-peer environments, 14th International Conference on Information and Knowledge Management (CIKM), Bremen, Germany, October 31st – November 5th, 2005 K. Haller: Transaktionsverwaltung für dienstorientierte Architekturen – ein Peer-to-Peer-basierter Ansatz, Ph. D. Thesis, Department of Computer Science, Swiss Federal Institute of Technology (ETH), Zürich, Switzerland, 2005 C. Türker, Klaus Haller, Christoph Schuler, Hans-Jörg Schek: How can we support Grid Transactions? Towards Peer-to-Peer Transaction Processing, 2nd Biennial Conference on Innovative Data Systems Research, Asilomar, CA, January 4th-7th, 2005 W. Binder, I. Constantinescu, B. Faltings, K. Haller, C. Türker: A Multi-Agent System for the Reliable Execution of Automatically Composed Ad-hoc Processes, 2nd European Workshop on Multi-Agent Systems (EUMAS), Barcelona, Spain, December 16th-17th, 2004 Klaus Haller, Heiko Schuldt, Can Türker: A Fully Decentralized Approach to Coordinating Transactional Processes in Peer-to-Peer Environments. Technical Report Number 463, Institute of Information Systems, Swiss Federal Institute of Technology (ETH), Zürich, Switzerland, 2004 K. Haller, M. Ackermann, C. Munari, C. Türker: Enhanced User Support for Mobile Ad-hoc-Processes, Workshop “Grundlagen und Anwendungen mobiler Informationstechnologie”, Heidelberg, Germany, March 23rd-24th, 2004 K. Haller, H. Schuldt: Consistent Process Execution in Peer-to-Peer Information Systems, 15th Conference On Advanced Information Systems Engineering (CAiSE), Lecture Notes in Computer Science (LNCS) 2681, Velden/Klagenfurt, Austria, June 16-18, 2003 K. Haller, H. Schuldt, C. Türker: Flexible Fehlerbehandlung für mobile Ad-hoc-Prozesse, Persistence, scalability, transactions – database mechanisms for mobile applications, workshop by the GI-Arbeitskreis “Mobile datenbanken”, Lecture Notes in Informatics (LNI) 43, Karlsruhe, Germany, April 10th-11th, 2003 K. Haller, H. Schuldt: Towards a Decentralized Implementation of Transaction Management. 15th GI-Workshop Grundlagen von Datenbanken, Tangermünde, Germany, June 10th-13th, 2003 K. Haller, H. Schuldt, H.-J. Schek: Transactional Peer-to-Peer Information Processing: The AMOR Approach, 4th International Conference on Mobile Data Management (MDM), Lecture Notes in Computer Science (LNCS) 2574, Melbourne, Australia, January 21st-24th, 2003 C. Türker, K. Haller, H. Schuldt, H.-J. Schek: Mobilität in Informationsräumen, Datenbank-Spektrum 5: 16-23, dpunkt.verlag, 2003 K. Haller, H. Schuldt: Using Predicates for Specifying Targets of Migration and Messages in a Peer-to-Peer Mobile Agent Environment, 5th International Conference on Mobile Agents (MA), Lecture Notes in Computer Science (LNCS) 2240, Atlanta, GA, December 2nd–4th, 2001 K. Haller: Ein Konzept zur Integration von UML-StateMachines in ein ORDBMS, Diploma Thesis, Department of Computer Science, Technical University of Kaiserslautern, Germany, 2000 K. Haller: Development of a Lightning Control System in SDL, Project Thesis, Department of Computer Science, Technical University of Kaiserslautern, Germany, 1999