oracle aide

January 4, 2015

Change velocity – for code and data

Filed under: Uncategorized — oracleaide @ 5:53 pm

It is a known practice to re-factor code by its change velocity.  Ideally, source code should be resilient to change, and volatile logic should go into a configuration layer (config files or, better, “convention over configuration”).

A similar pattern is known in the DW world. Separation of facts from dimensions is just a single use case of consolidating / grouping / separating data by their change velocity.

Slowly changing dimensions are another example. There are at least two classes of dimensions – static and slowly changing.

Are there fast changing dimensions? Do we call them facts?


Leave a Comment »

No comments yet.

RSS feed for comments on this post. TrackBack URI

Leave a Reply

Please log in using one of these methods to post your comment: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s

Create a free website or blog at

%d bloggers like this: