noun
software infrastructure; underlying software
Refers to foundational software that supports higher-level applications, such as operating systems, middleware, or core libraries.
このシステムの基盤ソフトはLinuxです。
The underlying software for this system is Linux.
基盤ソフトのアップデートが必要だ。
We need to update the software infrastructure.
インフラ is a broader term for infrastructure in general (hardware, networks, etc.), while 基盤ソフト specifically refers to the software layer.
Compound of 基盤 (foundation, base) and ソフト (abbreviation of ソフトウェア, software).