expandedextended

Expandedextended is a term used in information technology to describe a concept that merges two forms of extensibility: expanding existing data structures and extending system capabilities. It is a coined concept rather than an officially defined standard, and its exact meaning varies by context.

The term is not associated with any formal specification. It appears in informal discussions, speculative design notes, and some documentation as a shorthand for dual-extensibility approaches that aim to preserve compatibility while enabling growth.

In practice, expandedextended can refer to two related ideas. Expansion refers to retrieving or presenting additional related data alongside a core object, such as nested resources or optional fields. Extension refers to adding new attributes, features, or processing steps in a way that does not disrupt existing clients. Together they describe a design that enables both deeper data retrieval and future feature growth.

In applications, an expandedextended mode might allow clients to request both expanded related resources and extended attributes via query parameters. In data modeling, a schema labeled expandedextended may define optional, versioned extensions that can be recognized by parsers while remaining backwards compatible.

Because expandedextended is informal, its usage is largely descriptive and varies by project. Related concepts include extensibility, data expansion, and schema evolution.