Naming Collision: Siemens IPP&E vs. SAP iPPE (Do Not Confuse)

Researching this space online surfaces two unrelated acronyms that look nearly identical and both appear inside Teamcenter documentation:

Siemens Teamcenter IPP&E

Integrated Program Planning & Execution — the subject of this knowledge base. A Teamcenter module for aerospace/defense program management: WBS/OBS, work packages, Integrated Master Plan/Schedule, EVM integration. Marketed via Siemens' IPP&E fact sheet and the Aurora Intelligent Scheduling partner page.

SAP iPPE

Integrated Product and Process Engineering — an unrelated SAP module for modeling variant-rich product structures and manufacturing process structures (product variant structure, process structure, plant/line structure). It shows up in Teamcenter documentation only because Teamcenter Gateway for SAP Business Suite / S4HANA (T4S) has a data-exchange feature literally named "ippe_transfer" that imports/exports SAP iPPE structure nodes into Teamcenter item revisions (n:1 relationship). See the official config guide: Teamcenter Gateway for SAP — IPPE Transfer introduction and its Import page.

Why this matters for this knowledge base

• These two "IPPE"s have nothing to do with each other — one is aerospace/defense program/schedule/cost management (Siemens' own product), the other is SAP's manufacturing/product-structure interoperability feature that Teamcenter happens to consume.
• Web searches for "Teamcenter IPPE" frequently surface T4S/SAP integration guide pages as false positives. Anyone extending this KB should filter search results accordingly — a hit on docs.plm.automation.siemens.com/.../T4S/.../ippe_transfer/... is almost certainly about SAP's module, not Siemens' program planning module.
• No evidence was found that Siemens' Teamcenter IPP&E and SAP iPPE interoperate with each other; they are two independently named, independently owned capabilities that both happen to abbreviate to "IPPE."