Language Independent Services

This is a catalog of existing and possible services that are application-language independent or attempt to be app-language independent. The list will avoid services that are too domain-specific, although may have services commonly found among related domains.

Database (persistence, attribute management and processing)

Transport mechanisms: ODBC, pipes
Interface language or commands: Usually query languages such as SQL and TutorialDee
Product Examples: MySql, Oracle

GUI's

File Systems

Transport mechanism: built into most languages, or via API's
Interface language or commands: API or language-specific
Product Examples: FAT

Document Indexing

Report Generators

Printing

For printing I'm wondering what the service would be. Obviously the printing dialog is not part of this as it belongs to GUI above. This still leaves the representation of the printable entity, the printing driver, the pysical transport and the printer internals.

Printable
- Transport mechanism: file
- Interface language or commands: plain ascii text (target language source)
- Product examples: PostScript, TeX (one might add PDF but there you need a specialized API the generate it)
Driver
- Transport mechanism: pipe, directory
- Interface language or commands: just pass the file to print
- Product examples: LP (*nix)
interface

CategoryCatalog