Composable

Composability refers to an application or cryptoasset's ability to interact with another permissionlessly, often enabling new use cases. Composable interactions allow one interaction's output to function as the input of another, with no hard, theoretical limit to the total number of interactions.

Composability enables several features, including the ability for systems to fork and integrate other systems (i.e., dApps calling contracts from other dApps), standards to remain interoperable and cross-compatible (i.e., ERC20 tokens), as well as the ability for multiple cross-dApp operations to be bundled into a single transaction, with all said operations either executing or failing (atomic composability).