Computing
- Signed distance function, a mathematical concept used in computer graphics
- Simple Data Format, a platform-independent file format capable of handling large multi-dimensional arrays
- Software development folder, a physical or virtual container for software project artifacts
- SQL Server Compact Edition Database File, a Microsoft database file format
- Spatial data file, a single-user geodatabase file format
- Standard Delay Format, a standard data structure for timing data
- Structure data file, a file format for a chemical table file
- SDF Public Access Unix System
- Synchronous Data Flow, a computational model
- Syntax Definition Formalism, a metasyntax used to define context-free grammars
Read more about this topic: SDF