GDDM

Graphical Data Display Manager

Enhanced Definition

IBM software for creating graphical presentations, charts, and business graphics in mainframe applications. GDDM provides graphics primitives and high-level functions for visual data representation.

Key Characteristics

- Business graphics generation
- Chart and graph creation
- Presentation graphics
- Device-independent output
- Integration with COBOL and PL/I
Graphics Types:
- Line graphs and charts
- Bar and column charts
- Pie charts
- Scatter plots
- Area charts
- Mixed chart types
GDDM Components:
- GDDM-PGF: Presentation Graphics Facility
- GDDM-GKS: Graphics Kernel System
- GDDM-IML: Image Symbol Library
- GDDM-PCLK: Programming Graphics Utility
Output Formats:
- Terminal displays (3270)
- Printer output (AFP, PCL)
- Plotter output
- File formats (TIFF, GIF)
- PDF generation
Programming Interfaces:
- COBOL callable services
- PL/I callable services
- REXX command interface
- Assembler macros