Implementation is system design, not behaviour change
Implementation succeeds when systems make the desired behaviour easy, safe, and default. Behaviour change framing over-attributes failure to people instead of constraints, design, and trade-offs.
Behaviour is locally rational
People act reasonably given their goals, information, incentives, and constraints. What looks like resistance usually reflects system pressure, not attitude.
Work-as-imagined vs work-as-done
Work-as-imagined reflects plans and policies; work-as-done reflects real conditions like interruptions, shortcuts, and trade-offs. Implementation fails when design targets only imagined work.
Burden predicts abandonment
Cognitive, temporal, and emotional burden strongly predict whether an intervention is used or quietly dropped. Value cannot compensate for excessive burden.
Champions are fragile solutions
Champions compensate for poor design, but their effort is not scalable or durable. Champion dependence predicts collapse at scale or after turnover.
Training is a weak fix for design problems
Training adds work and decays quickly. If correct use depends on memory or vigilance, the system is fragile by design.
Complexity scales poorly
Every added step, decision, or dependency multiplies failure points at scale. What works locally may collapse when variability increases.
Adaptation is not failure
Intentional adaptation can improve fit and equity. The risk is uncontrolled drift that erodes core mechanisms.
Fidelity without fit collapses
High fidelity to a poorly fitting design produces workarounds or abandonment. Fit must be addressed before enforcing fidelity.
Sustainment is designed from day one
Durability depends on early decisions about ownership, burden, and routinisation. Late sustainment fixes rarely work.
Equity failures show up early
Unequal reach, adoption, or burden appear early in rollout. Early inequities usually widen over time if unaddressed.
Silence does not mean success
Lack of complaints often reflects overload, disengagement, or learned helplessness rather than smooth implementation.
Pressure hides problems; redesign reveals them
Escalation, reminders, and enforcement suppress signals. Redesign surfaces constraints and enables learning.
Defaults beat instructions
People reliably follow defaults under pressure. Strong defaults outperform education, reminders, and policies.
Boring is success
Stable, unremarkable use without heroics or escalation indicates a well-designed, routinised intervention.
What is an implementation failure mode?
A predictable pattern that causes implementation to stall, degrade, or collapse. Failure modes repeat across projects and are preventable.
Training-as-solution failure mode
Defaulting to education when the real constraint is workflow, capacity, or design. Repeated training often signals misdiagnosis.
Pilot illusion
Pilot success occurs under protected conditions with extra support. Pilots often hide fragility that appears at scale.
Early adopter trap
Designing around enthusiastic users instead of average or constrained users. Early adopters mask real usability and burden issues.
Invisible workload failure mode
New work is added without removing old work. Hidden effort accumulates until goodwill collapses.
Compliance framing failure mode
Interpreting non-use as defiance rather than misfit. Compliance language shuts down learning and increases resistance.
Design-by-policy failure mode
Using rules or mandates to compensate for poor design. This creates workarounds and shadow systems.
No-owner failure mode
Responsibility is diffused across teams or committees. Without a named owner, sustainment decays.
Handover cliff
Implementation collapses when project teams withdraw and support disappears. Handover is a high-risk moment.