Data warehouses are highly structured storage systems keeping only filtered business and operational system data for a specific purpose. Advanced external sources are practically infinite, limited only by imagination and lack of technological capacities. Having clear company data policies will prevent common errors and ensure compliance with data privacy laws and regulations. Recently, however, the engineer who told me this story let me know there was a happy ending. However, in its essence, the notion is quite straightforward.
Data warehouses are a good thing.
( z0 thing :ARG1-of ( z1 good ) :domain ( z2 warehouse :mod ( z3 data ) ) )
(z0 / thing
    :ARG1-of (z1 / good-02)
    :domain (z2 / warehouse
                :mod (z3 / data)))
Data warehouses are a good thing .
z2 :mod z3
z0 :ARG1-of z1
z0 :domain z2