Some days ago Copenhagen was hit by the most powerful cloudburst ever measured here.
More powerful cloudbursts may be usual in warmer regions on the earth, but this one was very unusual at 55 degrees north.
Fortunately there was only material damage, but the material damage was very extensive. When you take a closer look you may divide the underground constructions into two categories.
The first category is facilities constructed with the immediate purpose of use in mind. Many of these facilities are still out of operation.
The second category is facilities constructed with the immediate purpose of use in mind but also designed to resist heavy pouring rain. These facilities kept working during the cloudburst. One example is the metro. If the metro was constructed for only the immediate purpose of use, being circling trains below ground, it would have been flooded within minutes, with the risk of lost lives and a standstill for months.
We have the same situation in data management. Things may seem just fine if data are fit for the immediate purpose of use. But when a sudden change in conditions hit, then you know about data quality.