Additive Attributes or TVs

[Ian Mitchell]

Has anyone got a way to make some EA Attributes additive? For example, if I give each Use Case a 'points' (tagged) value, I'd like to give the 'Work Package' element which implements those use cases another Tagged Value, which is the simple sum of all the points values of the Use Cases it realizes?
A bit of a fiddle to setup, but seems really useful: then EA could make sure that the derived value is always up-to-date, and it become easily printable. Should be good for lots of other values, especially in the SysML world, where you're dealing with numeric values quite a lot.
Probably best done with a Script, but I can't quite see what the trigger would be? Has anyone done this already ?

[Geert Bellekens]

There are events for tagged values as well

• EA_OnAttributeTagEdit
• EA_OnConnectorTagEdit
• EA_OnElementTagEdit
• EA_OnMethodTagEdit

You could use those to keep your derived values up to date.

Geert