ECA在IT行业是什么意思啊？

ECA
= Eigenvalue Change Analysis,本征值变化分析; = Engineering Change Announcement, 工程更改通知
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ECA (Event Condition Action) is much like a trigger. When a service is called,
a lookup is performed to see if any ECAs are defined for this event. Events
include before authentication, before IN parameter validation, before actual
service invocation, before OUT parameter validation, before transaction
commit, or before the service returns. Next each condition in the ECA
definition is evaluated and if all come back as true, each action is performed.
An action is just a service which must be defined to work with the parameters
already in the service's context. There are no limit to the number of conditions
or actions each ECA may define.