Author Sieuwert van Otterloo
Dr. Sieuwert van Otterloo is a court-certified IT expert with interests in agile, security, software research and IT-contracts. He is a also an ISO 27001 and NEN 7510 auditor and AI researcher.
The Utrecht Housing dataset: A housing appraisal dataset
Van Otterloo, S and Burda, P. 2025. The Utrecht Housing dataset: A housing appraisal dataset. Computers and Society Research Journal (2025), 1 DOI: https://doi.org/10.54822/QVHM1662 Abstract This paper introduces a real-world dataset for analysing and predicting house prices. The dataset consists of actual data on the Dutch housing market collected in 2024 for a total of 153…
Sieuwert van Otterloo
AI audits
Companies making or using high risk AI systems must do AI audits and assessments to comply with the AI Act. We do these audits in a practical constructive manner, based on our technical and legal experience.
Sieuwert van Otterloo
ISO 27001 technological controls for software development
The latest version of ISO 27001 contains multiple controls about secure development, engineering, coding and testing that seem to overlap. In this article we provide guidance how to implement these controls. The overlapping controls explained are 8.25, 8.26, 8.27 and 8.28. We also cover 8.31 and 8.33 (test environments and test information).
Sieuwert van Otterloo
ITIL and service management: a short introduction
ITIL, the standard for service management, is an important standard for people who want to understand how IT is used in practice. It is especially important for professionals that want to grow beyond software development into IT management, since it complements software development really well.
Sieuwert van Otterloo
open standard Security Verified updated
Last month (feb 2024), the 2024 version of the open information security standard ‘Security Verified’ was released. This new version contains small changes to make it more readable and easier to combine with the latest version of ISO 27001.
Sieuwert van Otterloo