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Management Information Systems 3
Transcript of Management Information Systems 3
4 types of business models
The Long Tail
peak 1997 ($60 per share)
2002: $0.08 per share
Invest in disruptive technology
Brick & mortar
click & mortar
Making business more efficient and effective
Measurement of e- success
no of views
surfing pattern (exits, entrances)
length of stay
dates & times
% of registrations
no of customers registered
How do we make money?
online direct marketing
electronic tendering (reverse auctions)
Name your price
find the best price
market places and exchanges
go to youtube
search for a famous video
click on the least viewed related video 10 times
go to amazon
do the same
Where does all this stuff come from?
democratization of production
How do we find all this stuff?
Who collects all this stuff?
democratization of distribution
sharing, retailing, libraries etc
bringing demand and supply together
Go to a popular website and find out what they use their website for (how do they make money?)
Relationships: 1 to 1,
1 to N and M to N
M to N
Computers do not understand how people or products are different
So, we need to identify everything for the computer (ID)
The way we identify something is with Keys
Unique identifier of an entity (never same)
Secondary Key (Index)
Helps search through DB quicker (can be the same)
Sometimes you can create an identifier by combining two fields
e.g. order nr + product nr
Primary key from other table (other entity)
MS Access Navigation and functions
Go to e-learning
Start Making Some Tables (don't enter data yet)
enter low end of market
network for people inside an organization (outsiders no access)
people outside organization to access intranet
internet service provider
wireless internet service provider