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what is effect variance ,Budget variance , Schedule Variance
, Defect Density ?
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Answer / vamsi krishna
Before Going to the concepts,plz know what are these and
from where it will come and who will measure
All these are called as Some Metric Measurement,
All these will be calculated by Project QA and Manager,
All these are coming from Project Plan
It is not effect Variance--->Effort Variance
Effort Variance--Number of Man Months Working for Particular
Module and Difference between Actual and Planned Resources
Ex: For a particular Module 6 resource need to be work but
only 5 are working ,so there will be a lag of resource,then
effort variance will occur
Schedule Variance--Number of Man Months Working for
Particular Module for Number of Days
here both effort variance and Schedule Variance are directly
propositional
Defect Density:Number of Defect found in terms of code and
Depending in the organizational Standards
for CMMI Level-5, 1 Defect for 1024 Lines of Code,
Number of Defect's will define the quality of Software
Budget Variance:This will be Taken care by Project
management like OS,Budget all these are Financial Perspective
Let me know any thing Wrong,
Regards,
Vamsi Krishna,
ISTQB Certified,
+91 8013153659
| Is This Answer Correct ? | 14 Yes | 0 No |
Answer / lucky
Defect Density is defined as the number of defect fould in
a module/program divided by the size of the software being
measured.
Size is either lines of codes or function points.
| Is This Answer Correct ? | 5 Yes | 2 No |
Answer / hari
defect density can be calculated in various ways
a)number of defects/number of units in software system
b)number of defects in testing/number of defects reported by
end user
budget variance: budget of 1unit/budget of entire software
system
schedule variance:time for 1 unit/time for testing entire system
| Is This Answer Correct ? | 4 Yes | 2 No |
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