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Q. Write short notes on Quick-fix Model?
Quick-fix Model: This is the simplest model utilized for the maintenance of the software. In this model modification at the code level are made as early as possible without anticipating future maintenance problems. This model isn't suitable for large and complex software systems. It must be used if the size of the software is small and is developed and maintained by one person. As well if the customers want fixing of bugs to be done immediately one can use this model. In that bugs are able to be fixed temporarily and parallel proper correction can be done.
Determine the level 0 and level 1 of DFD External entities provide input data for processing. During processing, some intermediate data is generated. After final processing, fi
What is equivalence partitioning? Equivalence partitioning is a black box method that separates the input domain into classes of data. From this data test cases can be derived.
Internal Interrupt Cause because of illegal or erroneous use of an instruction or data. Internal interrupts are also known as traps. Internal interrupts are initiated because o
Functional testing is black-box type of testing geared to functional needs of an application. Test engineers *should* do functional testing.
Equivalence class: -It shows a set of valid or invalid states for input conditions. An input condition is either a particular numeric value, a range of values, a set of related val
What are the principle stages of VORD method? Viewpoint identification: Identify the services given to each viewpoint. Viewpoint structuring: Grouping linked viewpoints in t
Write short notes on estimation models. Empirical estimation models can be used to complement decomposition methods and propose a potentially valuable approach in their own rig
What is software architecture? The software architecture of a program or computing system is the structure or structures of the system, which comprises software methods, the e
DMA data transfer The position of the DMA controller between the other components in a computer system. The CPU communicates with the DMA by the address and data buses as with
What is a vertical microinstruction? Ans) A vertical microinstruction is a microinstruction that states one of a sequence of operations required to carry out a machine language
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