A software tester receives the following graphic. Life Cycle Phases
% of total
development faults
60
50
40
30
Кеу
Design faults
Z Logic faults
& Syntax faults
| Introduced
O Observed
20
10-
0
TO
Requirements
& Functional
Design
(Phase 1)
1 O
Technical
& Program
Design
(Phase 2)
1 O
Construction
& System
Test
(Phase 3)
O
Acceptance
Testing &
Operations
(Phase 1)