The study developed a new model of rheumatology and immunology nurse training for resource-constrained hospitals using the Medical Research Council (MRC) Framework for Complex Interventions.[4][5] The model was created in two phases: the first phase included analysis of available evidence, stakeholder engagement, program theory development, local context analysis and economic evaluation, the second phase consisted of the design of a three-tier case-based learning model with progressive levels of complexity (basic, intermediate and advanced).[1] Involvement of healthcare professionals revealed low participants' self-confidence and the need for structured education focused on laboratory test interpretation, medication management and communication skills. The model was based on the theory of the zone of proximal development, which supports a gradual educational process from simpler to more complex knowledge and skills. The final product was a hierarchical clinical case library created from authentic medical records and a three-tiered learning model that ensures continuity of knowledge through incremental progression. The economic evaluation confirmed that the localized training model is feasible and cost-effective. The study subsequently implemented a pilot test in the form of a cluster randomized controlled trial to further verify the effectiveness and feasibility of the model.