Charecteristic distributed system

1. Openness

1.1. open distributed system

1.1.1. interoperation

1.1.2. portability

1.1.3. well defined interfaces

1.2. achieving openness

1.2.1. hardware

1.2.2. platform

1.2.3. languages

2. Resource sharing

2.1. printer

2.2. memory

2.3. web page

2.4. computer

3. Scability

3.1. Size Scability

3.2. Geographical scability

3.3. administrative scability

4. Transparency

4.1. access

4.2. location

4.3. migrationn

4.4. relocation

4.5. replication

4.6. concurrency

4.7. secruity

4.8. failure tolerance