Contingency plan checklist

• In general, the more complex the entity, the more likely you will encounter a problem with data exchanges. Sending simpler entities may still let the receiver attain an adequate level of functional equivalence from the exchange.
• Add points to form grids on surfaces.
• Add surface edge and intersection curves.
• Reduce complicated groups of geometries down to the surfaces that define faces. For example, reduce resulting trimmed surfaces to bounded surface patches.
• Expand (or explode) details and symbols.
• Leave points along curves at tangents, start, and end points.

Source:
Hap Stokes, Engineering Consultant