As Figure 10 shows, there is an error marker on the transition from the initial state to the first state because there is not yet an operation to trigger the transition.
如图10中所示，从初始状态到第一个状态的转换上有一个错误标记，因为尚没有操作触发转换。
2
If the sequence reverses, you'll get an error when executing the transition of MathService (SV) (Figure 12).
如果顺序颠倒的话，那么在执行MathService (SV)转换时会得到一个错误(如图12所示)。
3
This handler can be defined as part of a BpmProcessor action and allows to control transition from service invocation - different transition in the case of success or error.