The **CSDM Adoption Stages** are a recommended approach for implementing the [[Common Service Data Model|Common Service Data Model]] (CSDM), a reference architecture developed by [[ServiceNow|ServiceNow]] that provides prescriptive guidance on service-related definitions and data modeling within the ServiceNow AI Platform. Rather than implementing all elements of the CSDM at once, ServiceNow recommends a staged approach called "Foundation, Crawl, Walk, Run, Fly" based on decades of implementation experience, enabling organizations to achieve incremental value while building toward a complete data model. - The **Foundation** stage focuses on referential data including [[Company (CSDM)|Company]], [[Business Unit (CSDM)|Business Unit]], [[Department (CSDM)|Department]], [[Location (CSDM)|locations]], [[Group (CSDM)|groups]], [[User (CSDM)|users]], [[CMDB Group (CSDM)|CMDB Group]], [[Product Model (CSDM)|Product Model]], and [[Contract (CSDM)|contracts]]. - The **Crawl** stage targets quick wins with [[Business Application (CSDM)|Business Application]], [[SDLC Component (CSDM)|SDLC Component]] (optional), [[Application Service (CSDM)|Application Service]], and discoverable [[Application (CSDM)|applications]] and infrastructure. - The **Walk** stage adds [[Technology Management Service (CSDM)|Technology Management Service]], [[Technology Management Service Offering (CSDM)|Technology Management Service Offering]], and [[Dynamic CI Group (CSDM)|Dynamic CI Group]] for managing technology providers. - The **Run** stage introduces [[Service Portfolio (CSDM)|Service Portfolio]], [[Business Service (CSDM)|Business Service]], and [[Business Service Offering (CSDM)|Business Service Offering]] for impact assessment and service portfolio management. - The **Fly** stage completes the model with [[Business Capability (CSDM)|Business Capability]], [[Information Object (CSDM)|Information Object]], and Request Catalog integration with [[Service Offering (CSDM)|Service Offerings]], laying the foundation for [[Enterprise Architecture (ServiceNow)|Enterprise Architecture]] rationalization capabilities.