2

3

Openthology1.0

4

Openthology1.0

5

6

7

8

1.

2.

3.

99.9%

9

Money

10

ISO9126

11

ISO 9126

functionality suitability accuracy interoperability security compliance

reliability

maturity fault tolerance recoverability compliance

usability understandability learnability operability (attractiveness) compliance

efficiency time behaviour resource behaviour compliance

maintainability analyzability changeability stability testability compliance

portability adaptability installability (co-existence) replaceability compliance

12

FURPS

RUP

F: functionality

U: usability

R: reliability

P: performance

S:supportability

: plus constraints

13

What How What

How What How

14

15

~

4GB

16