information systems

1. expert

1.1. replicates reasoning of a expert

1.1.1. works with data

1.1.1.1. gives user a recomendation

2. decision

2.1. internal

2.1.1. inventory

2.1.2. sales

2.2. external

2.2.1. gov't reports

2.2.2. commercial info

3. management

3.1. collect data

3.1.1. generate reports

4. New node

5. Transaction

5.1. record business activity

5.1.1. collect transaction data

5.1.1.1. store transaction data

5.2. maintain data

6. in offices/business'

6.1. managers

6.1.1. workers