Project Management (PM²) Foundation Certification

A senior manager is proposing a long-term organisational transformation involving several interrelated projects, each contributing to a broader cultural change. A junior team member insists the initiative should be run as a single project. Based on the definitions provided, why is this initiative better classified as a programme rather than a project?

A project team is at the very earliest stage, having received an initial idea (a mandate) from a sponsor. Their task is to develop it into a high-level outline and assess whether it is feasible enough to investigate further. In the Praxis lifecycle, which phase are they in, and what document formalises the high-level justification?