Data Relevancy Over Time

There is yet another reason for the relationship seen in Fig. 16.1.4. That reason is that as
data age, over time, the data lose its relevancy.

Fig. 16.1.7 shows this phenomenon.

Fig. 16.1.7 Over time older data loses its relevancy to the business of today.

In Fig. 16.1.7, it is seen that as data age, the data lose relevancy. Stated differently, the
fresher the data are, the greater the chance that the data are relevant to today's world.

Over time, business conditions, technical conditions, market conditions, product
conditions, and government conditions all change so much that looking at data from an
earlier day and age is simply meaningless. The data grow so old that any conclusions are
simply not relevant to today's world.

Yet, that older data are held within the system—usually in the data lake environment.

There are then a whole host of reasons for the truth shown in the Fig. 16.1.4.

Where Tactical Decisions Are Made

Chapter 16.1: Business Value and the End-State Architecture