Complexity in Digital Change: The Four Challenges

Simple, Complicated, and Complex Systems

A foundational distinction runs through all the frameworks in this body of work. Simple systems are point innovations with minimal systemic impact. Complicated systems have many components in predictable chains — demanding expertise, but ultimately deterministic. Complex systems have dynamically interacting human and technological components in a shifting context where outcomes are non-deterministic and subject to emergent properties. Care is explicitly classified as complex.

Challenge 1: Hubris

The assumption or desire that the solution is self-evident and just requires implementing — a "presumption of wisdom." Manifestations include the NPfIT's assumption that universal EPR adoption was achievable by technical implementation; consumer technologies treated as if feasibility equals adoption; and the asymmetry between R&D spend (£1.2bn/year) and diffusion support (AHSNs, ~£50m/year).

The NAO (2020) independently confirmed this pattern: ten years after NPfIT, national NHS digital programmes were found to be "still more focused on technology than on adaptive change." The response is the Four Pillars: Action Research, Developmental Evaluation, Bottom-up Design, and Top-down Design.

Challenge 2: Sustainability

The challenge that changes in technology, policy or demand should not require a completely new approach. Digital change in care has historically produced point innovations — closed, proprietary, pathway-specific — that become obsolete as the context shifts. The key reframe is from "How can technology make the current process more productive?" to "How can technology make the current process redundant?"

The NHS Federated Data Platform is the largest current test of this proposition: technically capable, but fewer than a third of NHS trusts were actively using it as of May 2025. The barriers are not technical — they are organisational, financial and governance-related. The response is the Resilient Adaptive Sociotechnical Platform (RASP): resilient, adaptive, and sociotechnical.

Challenge 3: Collaboration

The fragmented structure of care delivery means that collaboration must span practitioners and patients, care organisations with different governance frameworks, commissioners with different financial incentives, IT staff, information governance leads, and families. Competition between care organisations, cross-organisational information barriers and perverse financial incentives all complicate collaboration. The response is the POTE Framework.

Challenge 4: Context

The need to recognise the different perspectives of different stakeholders and how this varies at different levels of the care system. Context is not a nuisance to be controlled for; it is the substance of the intervention. Five embedded context levels are identified (C0–C4): the Macro Environment; Technology (uniquely sitting both inside and outside the Macro Environment); Technology in care provision; Health and social care provision; Services provided to the citizen; and the citizen.

The C0.5 position of technology is a crucial insight: technology is not a static tool chosen once; it must remain current against a changing Macro Environment. The response is the Intervention Space and Context Mapping.

The Demandometer of Care

A model describing the relationship between care system capacity and demand: when demand is below capacity, financial levers work and innovation is fundable; as demand approaches capacity, efficiency drives begin; when demand exceeds capacity, the system saturates and financial levers become perverse. Failure Demand — non-productive activity generated by the system's inability to deliver positive outcomes — takes over. Care systems that most need digital transformation are often least able to resource or absorb it.