Infrastructure software that is the building blocks or base platform for domain applications software or used by application developers. Examples include:
- Operating systems
- Compilers and interpreters
- DBMS implementations
- File systems
- Device drivers
- Graphics libraries
- Web and network server-infrastructure-related services
- API's that don't target a specific organization
Contrast this with domain applications (eg. payroll processing), and custom internal applications.
Quasi-
SystemsSoftware are tools that may cater to a domain or specific shop, but are more "core" to the applications. For example, an in-house GUI library that creates a customized view or version of a more general GUI library that fits shop conventions and needs better. Such tools are pre-digesting a vendor or "general purpose" GUI library to hide features not typically used by the shop and streamline for patterns heavily used by the shop.
See
SystemProgramming