a library where every book is the same story, told by a different department, finally agreeing on the ending.
means a central system that collects and organizes data from many sources so a business can analyze history and make decisions, rather than just process transactions.
from coined by ibm researchers barry devlin and paul murphy in 1988, then popularized by bill inmon in the early 1990s as the antidote to companies drowning in disconnected databases that couldn't talk to each other.
snowflake — went public in 2020, biggest software ipo in history
amazon redshift — launched 2012, aws's answer to enterprise analytics
google bigquery — queries petabytes in seconds without managing servers
teradata — ran walmart's warehouse since the 1990s, old guard survivor