From Provenance WG Wiki

Revision as of 15:17, 13 November 2012

PROV Graph Layout Conventions

It is recommended to follow the following conventions to display PROV graphs.

PROV diagramming style materials available at http://dvcs.w3.org/hg/prov/file/tip/diagrams/style

Coloring and shape

Entities, activities and agents are represented as nodes, with oval, rectangular, and octagonal shapes, respectively. Usage, Generation, Derivation, and Activity Association are represented as directed edges.

• Entities are yellow ovals
  • Fill:
    • Saturated: (255, 252, 135) or #FFFC87
    • Desaturated: (255, 253, 229)
  • Stroke: medium gray (128, 128, 128)

• Activities are blue rectangles
  • Fill:
    • Saturated: (159, 177, 252) or #9FB1FC
    • Desaturated: (216, 217, 254)
  • Stroke: blue (0, 0, 255)

• Agents are orange "pentagon houses" (alternatively, upward isosceles triangles)
  • Fill:
    • Super-Saturated: (253, 178, 102)
    • Saturated: (254, 211, 127) or #FED37F
    • Desaturated: (253, 238, 205)
  • Stroke: black (0, 0, 0)

Arrangement

Entities are laid out according to the ordering of their generation. We endeavor to show time progressing from left to right. This means that edges for Usage, Generation, Derivation, Association typically point leftwards.

Alternatively, time going downward if it's more convenient.

Arrows point "back into the past".