<![CDATA[The People's School Program requires cross-sectoral coordination because its residential education services combine educational, social, health, planning, infrastructure, and community-protection functions. This study analyzes the effectiveness of cross-sectoral coordination in implementing the People's School Program in Biak Numfor Regency, identifies its supporting and inhibiting factors, and formulates a collaborative governance model suited to Papua's archipelagic context. A qualitative case-study design was employed. Data were collected through in-depth interviews, participatory observation, document analysis, and focus group discussions. Analysis involved data reduction, thematic display, conclusion drawing, source and technique triangulation, and confirmation with informants. The findings show that coordination was procedurally effective through formal and informal communication, role awareness, shared commitment, and continuous monitoring and evaluation. However, substantive effectiveness remained incomplete because differences in data, mandates, authority, and institutional priorities were not fully resolved. Further constraints included limited resources, fragmented sectoral databases, changing technical guidelines, and archipelagic geography. The study develops an Integrated-Adaptive Collaborative Coordination Model Based on a Permanent Forum. The model combines collaborative leadership, integrated data with documented local verification, conflict-resolution protocols, archipelagic coordination nodes, community participation, and continuous monitoring and evaluation. It is recommended as a framework for sustaining the People's School Program in archipelagic areas and implementing Papua's affirmative policy through regional institutionalization, clear authority allocation, and measurable service evaluation.]]>
