The following six characteristics can define the quality of the software:
Quality of software is defined as how effectively the software interacts with other components of the system. The software must provide appropriate functions as per requirement, and these functions must be implemented correctly.
It is defined as the capability of the software to perform under specific conditions for a specified duration
Usability of software is defined as its ease of use. Quality of the software is also identified as how easily a user can understand the functions of the software and how much efforts are required to follow the features.
The efficiency of the software is dependent on the architecture and coding practice followed during development.
Maintainability is also one of the significant factors to define the quality of the software. It refers to identify the fault and fix in the software. It should be stable when the changes are made.
Portability of the software, is defined as how easily a system adapts to changes in the specifications. The quality of the software is also determined by the portability of the system how easy it is to install the software and how easy it is to replace a component of the order in a given environment.