Table 1.

Domains of NPT in relation to CCDT

NPT domains	Questions
Coherence (Meaning and sense making of participants) How they make sense of the work of implementation and integration in order to promote/inhibit routine embedding of a practice.	Is the CCDT easy to describe? Do GPs understand what the CCDT is? Do GPs understand how the CCDT should be implemented? Is the CCDT clearly distinct from other practices? Do GPs express understanding of how the CCDT is distinct from other practices? Does the CCDT have a clear purpose for GPs/patients? Do GPs report a shared understanding of the purpose/benefit/value of the CCDT? What benefits do GPS feel the CCDT will bring and to whom? (GPs/patients)? Are these benefits valued by GPs? Does the CCDT fit with the overall goals and activity of the organisation (practice/NHS) Do GPs feel the CCDT fits with their own responsibilities/ roles?
Cognitive participation (Commitment and engagement by participants) Process and work go through to enrol individuals to engage with new practice	Do GPs think the CCDT a good idea—‘buy in’? Do GPs see the point of the CCDT easily? Are GPs willing to drive implementation? Are GPs able to/willing to sustain involvement? Do GPs feel is it ‘right’/legitimate they are involved? Do GPs feel using CCDTs is a legitimate part of their role?
Collective action (The work participants (individuals and organisations) do to make the intervention function) How they enact it	What effect does the CCDT have on the work of GPs (how the CCDT affects the consultation)? Does the CCDT promote or impede GPs work? How compatible is the CCDT with existing work practices? Does it make work easier? How does it affect their roles/responsibilities/training needs? Do GPs require extensive training before they can use the CCDT? Is there organisational support for the CCDT? Is there confidence in the new practice when they are using/enacting it? What impact does the CCDT have on division of labour, resources, power and responsibility between professional groups? Is there confidence in the new practice when they are using/enacting it?
Reflexive monitoring (Participants reflect on or appraise the intervention) How they appraise its effects——informal and formal appraisal of new practice to assess its advantages and disadvantages	How do GPs perceive the CCDT once it has been in use for a while? Is the CCDT perceived as advantageous for patients or staff? Are effects on them and their work clear? How do they judge this? Is it clear what effects the CCDT has had? What are the effects on GPs and their work? How do GPs appraise/evaluate this? Can GPs contribute feedback about the CCDT once it is in use? How are benefits or problems identified or measured? Can the CCDT be adapted or improved on the basis of experience? Has its use been altered while in use?

CCDT, Clinical Cancer Decision Tool; GPs, general practitioners; NHS, National Health Service; NPT, normalisation process theory.