70s - 90s
Massive investment in IT and no observable increase in productivity.
Why?
paper => electronics => paper => electronics => high labor costs
At first PCs on desktops not connected to corporate data systems.
90s payoff Why
integration of information systems
reduction in layers of management
micromanagement
grocery stories
customer databases
institution to institution
Move towards paperless society
LANS
Internet used to link
intraoffice
EDI Detroit -> Walmart
B2B
EDI through internet
XML replacing HTML
transactions through networks
markets at sites: Dot com bust ENRON in energy markets
Supply chain management
Internet services
AOL
Credit ratings
Airline
Consulting: Ernie