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Q. Explain Predictive validity?
Predictive validity: It is the potential of the model to predict future failure behaviour from present and past failure behaviour. This capability is important only when failure behaviour is changing. There are two universal ways of viewing predictive validity based on the two equivalent approaches to characterizing failure random process namely
1. The number of failure approach as well as
2. The failure time approach.
We can visually ensure the predictive validity by plotting the relative error against the normalised test time.
A dynamic analysis method which inserts assertions about the relationship among program variables into the program code. The truth of the assertions is determined as the program im
Q. Need of Output comparators? Output comparators These are used in dynamic testing-both single-module and multiple-module (system level) varieties to check that predicted an
Q. Show the Advantages of Re-Engineering? 1) Reduced risk - there is a elevated risk in new software development. There possibly staffing problems, development problems and spe
Give the procedure of the Delphi method. 1. The co-ordinator presents a specification and estimation form to all experts. 2. Co-ordinator calls a group meeting where the exp
Evolutionary prototyping: Evolutionary Prototyping (also called as breadboard prototyping) is quite dissimilar from Throwaway Prototyping. The main goal when using Evolutionary Pr
What transform mapping refers? The transform mapping is a bundle of design steps applied on the DFD in order to map the transformed flow characteristics into specific architect
Draw the Context level DFD for the Safe home Software. User commands Alarm type Telephone Number tone Sensor status Display Information
Q. List four reasons why it is difficult to improve software process. Ans It is difficult to get better software process due to following reasons: 1. Lack of knowledge-
EXPLAIN ABOUT DEFECT AMPLIFICATION AND REMOVAL IN SOFTWARE ENGINEERING
The sudden and finish failure of a computer system or component.
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