Show the relation between software and quality.

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Software and quality are strongly related because the quality of software can be have a significant impact on its usability, reliability and maintainability. Quality software is software that meets or exceeds the user's requirements and expectations is reliable and can be maintained easily. On the other hand, poor quality software can result in user frustration, lost productivity and increased costs due to the need for network or additional support.

Software quality is typically evaluated based on several factors including:

1. Functionality: Does the software system provide the functionality that the user requires?
2. Reliability: Is the software system reliable and does it perform as expected in all situations?
3. Usability: Is the software system easy to use and understand and does it provide a good user experience?
4. Efficiency: Does the software system perform efficiently, with minimal resource usage and processing time?
5. Maintainability: Is the software system easy to maintain and modify and can it be adapted to changing user requirements?
6. Portability: Can the software system be easily ported to different environments or platforms?

To ensure high-quality software, software development teams use various quality assurance and testing techniques, including unit testing, integration testing, system testing and acceptance testing. Additionally, quality management practices, such as continuous integration and continuous delivery, can help ensure that software systems are tested and validated at every stage of the development process.

Ultimately, the quality of software is critical to its success in meeting the needs of the end-users and stakeholders and high-quality software can provide significant benefits in terms of productivity, efficiency and user satisfaction.