What are the types of splits in a multi-development environment stack?

ServiceNow recognizes two formal ways to segregate code lines in a multi-development-environment (MDE) stack: a product-based split, where separate dev/test/prod chains exist for each product or workstream, and a release-based split, where separate chains are created for each planned release of the same product. These strategies are documented as the only officially supported “split” patterns for MDE; no other split types are defined for ServiceNow platform governance.

A. “Scoped-app and global configuration” are areas of the codebase, not formally defined MDE split patterns.
C. Geographic/functional splits describe org structure, not the ServiceNow-supported MDE instance topology.
D. Timeline/project-based splits are generic project-management terms and are not listed in ServiceNow MDE guidance.

1. ServiceNow Documentation – Collaborative Development: “Multi-dev environment (MDE) – Product-based and Release-based splits” (Utah release), docs.servicenow.com, Section: Strategies for multiple development stacks.

2. ServiceNow White Paper – Instance Strategy & Technical Governance, v4.2, §3.1 “Splitting an MDE stack”.