The article highlights an important new feature in IDS 11.10 install - the ability to customize which components are installed.
Now instead of copying all the files during installation, just those for the chosen components are copied. For IDS 10.0 and below most of the files in the media were language files of which only a small subset were likely to be relevant to your locale. I am not sure I go along with this sentence though..
- The disk footprint of IDS is considerable - Enterprise Edition installation is a little over 270MB on most platforms
Have you seen how large some other Enterprise RDBMS installations are? However the point of this sentence is well-intentioned. Perhaps 270Mb should be viewed as considerable if we can reduce the footprint by only copying the required files.
This goes a step towards Componentization - where you can pick and choose which Software components you wish to install rather than legacy all-or-nothing software installations.