HCI - Global variables as filter

Hi all,

In HCI, what is the best way to set a filter which will be used by many dataflows / tasks ?

In the first phase of our project, we will only consider several plants and DC. This list will evolve latter.

What we did so far is to create one global variable for each plant and DC :

$G_PLANT_01 = 'plant1'

$G_PLANT_02 = 'plant2'

etc...

$G_DC_01 = 'dc1'

$G_DC_02 = 'dc2'

etc...

We keep some of these variables empty for future phases of the project.

Then, we use these variables in the filter of our data flow :

It works but it's not really "elegant" and flexible.

It also takes a lot of time to replicate the global variables in each task.

Any recommendation?

Thanks for your help,

Pierre