实心圆表示活动图的起点，实际上是一个占位符，带边框的实心圆表示终点。

The filled circle represents the starting point of the activity diagram, effectively a placeholder, and the filled circle with a border represents the ending point.

youdao

这张图看起来可能过于简化，但是现在可以很清楚地看出，在像EWA这样的框架中，这张图是一个起点。

This might look like an overly simplistic view, but it should now be clear that within a framework such as EWA, this view is the starting point.

youdao

总体来说，我所采取的重构合同的方法，是以我想要如何发挥客户关系的心理图作为起点的。

In general, the approach I took to refactor my contracts was to start with a mental picture of how I wanted the relationship between me and my clients to play out.

youdao