The Bridge Is a Sequence, Not a Course List
This chapter examines the learning bridge between a source occupation and a target occupation. The practical question is not which course mentions a missing skill, but what sequence of foundation, target-task practice, evidence and support can make the move credible. That sequence must account for the worker's starting profile, education and field of study, the quality and direction of available training, and the constraints that determine whether learning can actually happen.
The starting point is a learning history
A transition does not begin at the moment someone opens a course catalogue. It begins with a history of opportunities to learn and practise. Formal education, work, family responsibilities, informal experience and previous training all shape what a person can do now and what kind of next step is realistic. The occupation skill vector helps describe the target's requirements, but it does not show how the learner arrived at their current capability pattern.
Education is one part of that history. The OECD Skills Outlook reports that vocationally oriented upper-secondary pathways often facilitate smoother transitions into work, while providing less exposure to advanced academic content. Short-cycle tertiary programmes can offer a relatively rapid route to skilled employment. More generally, adults with progressively higher qualifications show higher average literacy, numeracy and adaptive problem-solving proficiency than adults who left education below upper secondary level. These findings make education relevant to transition design, but they do not turn a qualification into a complete account of capability.
Field of study adds another layer. Among adults with similar qualifications, those who studied STEM fields have higher average numeracy, literacy and adaptive problem solving than those who studied education and teacher training or health. The OECD cautions that those differences may reflect the content of the programmes, later occupational paths or selection into the programmes. The practical implication is not that one field produces universally better workers. It is that a change in destination may require a different kind of foundation from the one a person's prior education supplied.
That distinction matters when a profile gap is interpreted. A person moving toward a more quantitative role may not need “more education” in the abstract. They may need practice with numerical reasoning, data interpretation, uncertainty and written explanation. A person moving into a role with stronger interpersonal or care demands may need supervised practice, domain knowledge and evidence of reliable judgement. The relevant bridge is determined by target tasks and by the learner's existing evidence, not by the prestige of a credential.
The same qualification can also function differently for different people. The OECD finds that education and skills explain much of the wage difference associated with socio-economic background, yet the returns to education are not identical across groups. For people with scarce family resources, formal education may be the main place where information-processing skills are developed and signalled. People with more resources may acquire and practise similar capabilities outside formal classrooms through networks, enriched environments and employer support. A transition plan that assumes everyone can supplement a course with unpaid projects, professional contacts or flexible time quietly builds privilege into its definition of readiness.
Adult learning is therefore both a bridge and a sorting mechanism. Across OECD countries, 43% of adults reported participating in non-formal education or training in the previous twelve months.