Document Conventions for Figure/Image/Dataset/Activity Relationships

[lomky]

Best Practices:

If multiple images in a figure were generated with the same activity and dataset, then the activity/dataset should be associated with the figure.

If different activities and/or datasets were used for individual images in a figure, then each activity/dataset should be associated with each image.

If there is a single image associated with a figure, assign any activty/dataset to the figure (not the image).

Activities and/or datasets should not be assigned indirectly through references.

Where should this go?

Original discussion: USGCRP/gcis#331

[lomky]

This should wait until our first pass, and may be obsoleted by it. #14