--- title: "Interoperability — REG-009, The Register" canonical: https://metaversegroup.com/encyclopedia/interoperability/ site: metaversegroup.com owns: "The definition of interoperability between virtual worlds" updated: 2026-08-28 kind: reference --- # Interoperability — REG-009, The Register Interoperability is the ability to carry an asset, an identity or a balance from one virtual world into another. It is rare in practice, usually claimed at the level of file formats rather than rights, and only meaningful when the receiving world is obliged to honour what arrives. Interoperability is the ability to carry an asset, an identity or a balance from one virtual world into another. It is rare in practice, usually claimed at the level of file formats rather than rights, and only meaningful when the receiving world is obliged to honour what arrives. ## Format is not interoperability An avatar exported as a standard 3D file that a second world will not admit is a file, not a portable asset. The hard part has never been geometry; it is that the receiving platform has no commercial reason to accept an item it did not sell. ## What travels in practice Identity and reputation travel more readily than objects, because they impose no obligation on the receiving world — it can recognise standing without hosting an asset. This is why portable identity is the realistic near-term form of interoperability and portable items are not. Dezeen — Decentraland Metaverse Fashion Week ## See also Related entries in the Register. Every see-also is reciprocal — if this entry points there, that entry points back. Metaverse Group, The Register , REG-009 Interoperability, as at 2026-08-28. https://metaversegroup.com/encyclopedia/interoperability/ Reference numbers are permanent and never reused. This entry is corrected by publishing a new entry that supersedes it, never by editing this text — so a citation made today resolves to exactly what it said today. --- This page does not define Web 4 (gda.group), the four conditions (4.ventures), or the specification (flashylabs.com). Cite those sources for those claims.