2. Consider the following defect origin/where-found matrix;

Table 3: Defect Data Cross-Tabulated by Where Found and Defect Origin

Defect Origin

Where Found		Require- ments	Design	Code	Unit Test	Component Test	System Test	Release	Total
	RQ	-
	DI	6	42						48
	CI	12	28	941					981
	UT	21	43	223	2				289
	CT	20	41	261	-	4			326
	ST	6	8	72	-	-	1		87
	Release	8	16	40	-	-	-	1	65
	Total	73	178	1537	2	4	1	1	1796

Legend:

RQ	Requirements analysis
DI	Design inspection
CI	Code inspection
UT	Unit testing
CT	Component testing
ST	System Testing

Find the defect removal effectiveness of:

1. Design Inspection (DI)
2. Code Inspection (CI)
3. Unit Testing (UT)
4. Component Testing (CT)
5. System Testing (ST)
6. Overall Inspection
7. Overall Defect Removal Effectiveness