The DOI matches its Crossref record.
The concept of function creep
Open accessAbstract
Function creep – the expansion of a system or technology beyond its original purposes – is a well-known phenomenon. Correction: it is a well-referenced phenomenon. Yearly, hundreds of publications use the term to criticise developments in technology regulation and data governance, but surprisingly, no-one has ever written a paper about the concept itself. This paper fills that gap in the literature, by analysing and defining ‘function creep’. This creates conceptual clarity that can help structure future debates and address function creep concerns. After analysing the term ‘function creep’ itself, I discuss concepts that share family resemblances, including other ‘creep’ concepts and many theoretical notions from STS, economics, sociology, public policy, law, and discourse theory. Function creep can be situated in the nexus of reverse adaptation and self-augmentation of technology, incrementalism and disruption in policy and innovation, policy spillovers, ratchet effects, transformative use, and slippery slope argumentation. Based on this, I define function creep as an imperceptibly transformative and therewith contestable change in a data-processing system’s proper activity. Argumentation theory illuminates how the pejorative ‘function creep’ functions in debates: it makes visible that what looks like linear change is actually non-linear, and simultaneously calls for a much-needed debate about this qualitative change.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
The cited source says what the claim attributes to it.
In the citing paper
“SAI functions may slowly 'creep' (Koops, 2021) into currently unknown possibilities of misuse.”
From A Fate Worse Than Warming? Stratospheric Aerosol Injection and Global Catastrophic Risk (2021) · cites this paper as Koops, 2021
In the citing paper
“In that context, it is not surprising that there would be a 'function creep' (Koops, 2021) in which the use of AI spontaneously expands from the expected or intended, into unanticipated practices:”
From Artificial intelligence and unconditional love: the rise of generative AI as an alternative form of mental health support (2026) · cites this paper as Koops, 2021
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Still being checked.
Research works printed but not linked: 3
- 121 DA Schön, ‘Generative Metaphor: A Perspective on Problem-Setting in Social Policy’ in A Ortony (ed.), Metaphor and Thought (Cambridge University Press, 2nd edn 1993) 137.
- 123 I Ayres and J Braithwaite, Responsive Regulation: Transcending the Deregulation Debate (Oxford University Press, 1992).
- 124 R Owen, J Bessant, and M Heintz, Responsible Innovation: Managing the Responsible Emergence of Science and innovation in Society (Wiley, 2013).
Cited by
Sorted by citations
Items 101–145 of 145
THE CHINESE SURVEILLANCE SYSTEM OF COVID-19 DISEASE IN THE LIGHT OF ARTIFICIAL INTELLIGENCE
Nagy, K., & Boštíková, V. (2024) · Military Medical Science Letters · doi:10.31482/mmsl.2023.023
Molè, M. (2024) · SSRN Electronic Journal · doi:10.2139/ssrn.4861228
Quintavalla, A., & Temperman, J. (2023) · Oxford University Press eBooks · doi:10.1093/law/9780192882486.002.0009
Quintavalla, A., & Temperman, J. (2023) · Oxford University Press eBooks · doi:10.1093/law/9780192882486.002.0008
Quintavalla, A., & Temperman, J. (2023) · Oxford University Press eBooks · doi:10.1093/law/9780192882486.002.0007
Quintavalla, A., & Temperman, J. (2023) · Oxford University Press eBooks · doi:10.1093/law/9780192882486.002.0006
Quintavalla, A., & Temperman, J. (2023) · Oxford University Press eBooks · doi:10.1093/law/9780192882486.002.0010
Quintavalla, A., & Temperman, J. (2023) · Oxford University Press eBooks · doi:10.1093/law/9780192882486.002.0003
García, M., Sen, S., Zepeda, J., Vargas, S., Fuchs, J. D., & Drabble, L. A. (2025) · doi:10.2196/preprints.73081
7 Surveillance in Small Acts: Health Code Rituals during the COVID-19 Pandemic in Xiamen, China
Kupinska, K. (2025) · Bristol University Press eBooks · doi:10.56687/9781529246544-010
Surveillance in Small Acts: Health Code Rituals during the COVID-19 Pandemic in Xiamen, China
Kupinska, K. (2025) · Bristol University Press eBooks · doi:10.51952/9781529246544.ch007
Assessment of the Regulatory Framework Applicable to Gambling-like Elements in Videogames
Declerck, P. (2025) · Information technology and law series/Information technology & law series · doi:10.1007/978-94-6265-691-8_6
How governments handle data matters for inclusion
Piotrowski, S. J., Porumbescu, G. A., & Ruijer, E. H. J. M. (2024) · doi:10.64628/aai.xj597vkev
Underthun, A., Bakkeli, V., & Drange, I. (2025) · Springer eBooks · doi:10.1007/978-3-032-02754-2_10
الحماية القانونية للبيانات الحيوية في البيئة الرقمية
صميدة, د. أ. ر. (2025) · Journal of Law and Emerging Technologies · doi:10.54873/jolets.v5i1.228
Yannakourou, S. (2025) · Springer eBooks · doi:10.1007/978-3-031-96743-6_3
Harmonizing Ethics and Innovation in Cybernetic Governance to Promote Sustainable Potential
Ghatak, A. (2025) · IGI Global eBooks · doi:10.4018/979-8-3373-2484-5.ch012
THE COMPARISON OF POLISH AND GERMAN MODELS FOR THE UTILISATION OF POLICE BODY-WORN CAMERAS
Kupczyński, J. (2025) · Studia Iuridica · doi:10.31338/2544-3135.si.2025-107.3
Schaaij, J., Oostinga, M. S. D., & Giebels, E. (2026) · Journal of Policing Intelligence and Counter Terrorism · doi:10.1080/18335330.2026.2614339
Mahomed, M., Koppel, S., Kaviani, F., & Truelove, V. (2026) · SSRN Electronic Journal · doi:10.2139/ssrn.6100370
The Ethics of Using Our Bodies as Data
Akande, N. A. (2026) · IGI Global eBooks · doi:10.4018/979-8-3373-4967-1.ch004
Private surveillance in public spaces: A new mode of policing and surveillance in Sweden
Backman, C., & Löfstrand, C. H. (2026) · Acta Sociologica · doi:10.1177/00016993261429662
Privacy & Safety Challenges of On-Body Interaction Techniques
Gerhardt, D., Bhardwaj, D., Ram, A., Zenner, A., Steimle, J., & Krombholz, K. (2026) · CHI Conference on Human Factors in Computing Systems · doi:10.1145/3772318.3790403
Olsson, T. (2026) · Emerald Group Publishing Limited eBooks · doi:10.1108/978-1-83662-172-020261004
Aebi, M. F., & Gastón, L. (2026) · Journal of Criminal Justice · doi:10.1016/j.jcrimjus.2026.102659
Органы публичной власти как операторы персональных данных: особенности правового статуса
DATII, V. (2026) · Вестник юридических исследований · doi:10.66621/3034-140x-2026-5-2-53-60
Huang, J., & Stone, S. (2026) · Springer eBooks · doi:10.1007/978-3-032-18443-6_10
Niazi, M., Hassani, H., & Lee, M. (2026) · Automation · doi:10.3390/automation7030096
Zulfiqar, M., & Iqbal, U. (2026) · Cureus Journal of Computer Science. · doi:10.7759/s44389-026-00146-3
Narrow surveillance: Preserving privacy in AI-based safety monitoring in public spaces
Wiewiura, J., & Nielsen, J. A. (2026) · Big Data & Society · doi:10.1177/20539517261458322
Privacy, Security, and Ethical Challenges in AI and IoT Social Sensing Systems
Akande, N. A. (2026) · Advances in computational intelligence and robotics book series · doi:10.4018/979-8-3373-4962-6.ch008
Periferakis, A., Troumpata, L., Periferakis, A.-T., Periferakis, K., Timofticiuc, I.-A., Georgatos-Garcia, S., Touriki, G., Bozatzi, A., Săvulescu-Fiedler, I., & Iftime, A. (2026) · Balneo and PRM Research Journal · doi:10.12680/balneo.2026.1019
Wellness creep into music streaming platforms: From pure chill to aural slop
Valverde, R. C., & Lupinacci, L. (2026) · Convergence The International Journal of Research into New Media Technologies · doi:10.1177/13548565261467300
Parent‐Rocheleau, X., Savard, Y. P., & Ollier‐Malaterre, A. (2026) · European Management Journal · doi:10.1016/j.emj.2026.07.006
Humanism and AI-Driven Vulnerabilities: Customers, Partners, Employees
Fioravante, R., & Vaccaro, A. (2026) · Humanism in business series · doi:10.1007/978-3-032-17121-4_5
Amodio, C., & Diurni, A. (2025) · Springer eBooks · doi:10.1007/978-3-031-93247-2_1
Something looks fishy! A philosophical exploration of AI for marine conservation
Ryan, M., & Korenhof, P. (2026) · AI and Ethics · doi:10.1007/s43681-026-01312-y
Uluk, M. (2026) · Özgür Yayınları eBooks · doi:10.58830/ozgur.pub1391
Rethinking AI in clinical decision support: a framework for reciprocal human-AI interaction
Greengrass, C. J. (2026) · Frontiers in Digital Health · doi:10.3389/fdgth.2026.1887161
Introducing Accountable Design
Urquhart, L. D. (2026) · Cambridge University Press eBooks · doi:10.1017/9781108985734.002
The promise of CCTV in early childhood settings in England
Tembo, S. (2026) · Contemporary Issues in Early Childhood · doi:10.1177/14639491261495403
Protección de los derechos de los administrados y sostenibilidad en decisiones automatizadas
Vargas, P. J. J. (2026) · Sortuz · doi:10.35295/sz.iisl.2585
Metadata
- Authors
- Koops, B.-J.
- Affiliations
- Tilburg University (NL)
- Corresponding author
- Koops, Bert-Jaap
- ORCID
- Koops, Bert-Jaap
- Venue
- Law Innovation and Technology
- Publisher
- Informa UK Limited
- Published
- 2021-01-02
- Volume
- 13
- Issue
- 1
- Pages
- 29-56
- ISSN
- 1757-9961 (ISSN-L)
- 1757-997X
- OpenAlex
- W3014550337
- Cited by
- 145
- References
- 0
- Citations by year
- 2026: 31 · 2025: 28 · 2024: 20 · 2023: 33 · 2022: 20 · 2021: 12
- FWCI
- 140.44
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Law Innovation and Technology (publishedVersion, cc-by-nc-nd)
- Research portal (Tilburg University) (submittedVersion, other-oa)
- Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
- SSRN Electronic Journal (submittedVersion)
- Funders
- European Union’s Horizon 2020 (653626)
- Topics
- Social Sciences › Law › Digitalization, Law, and Regulation
- Physical Sciences › Computer Science › Artificial Intelligence › Ethics and Social Impacts of AI
- Social Sciences › Sociology and Political Science › Innovation, Technology, and Society
- Keywords
- function creep, technology regulation, data governance, conceptual definitions, incrementalism, disruption, policy spillovers, ratchet effect, transformative use, argumentation theory, nonlinear change, data processing systems
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review