Quality in software testing refers to the degree to which a software product meets its specified requirements and user expectations. It is the process of ensuring that the software product is free from defects, operates as intended, and provides the desired functionality to the end-user.

The main objective of software testing is to identify defects, errors, and bugs in the software system and to ensure that the software is functioning as expected. Quality in software testing is achieved through various testing techniques such as functional testing, performance testing, security testing, usability testing, and many others.

In addition to testing, quality in software testing can also be ensured through activities such as code reviews, design reviews, and continuous integration and delivery. These activities help to identify potential issues early in the development process and prevent them from being introduced into the software product.

Overall, quality in software testing is a critical aspect of software development, as it ensures that the software product is of high quality, meets user requirements, and performs as expected.

Quality in software testing is the process of ensuring that a software product meets its specified requirements and user expectations. This is achieved through various testing techniques, code and design reviews, and continuous integration and delivery to identify and prevent potential issues.

There are several ISO standards related to software. Some of the most commonly known are:

1. ISO/IEC 12207:2017 – This standard provides a framework for the software life cycle processes, including requirements, design, implementation, testing, and maintenance.
2. ISO/IEC 15504 (SPICE) – This standard provides a model for assessing and improving software processes, including software development, management, and support processes.
3. ISO/IEC 9126:2018 – This standard defines software quality characteristics and metrics to evaluate software products based on their functionality, reliability, usability, efficiency, maintainability, and portability.
4. ISO/IEC 25010:2011 – This standard is a revised version of ISO/IEC 9126 and defines a set of quality characteristics and sub-characteristics for software products.
5. ISO/IEC 27001:2013 – This standard defines a framework for information security management and includes requirements for the implementation of an information security management system (ISMS).

These ISO standards provide guidelines and best practices for software development, testing, quality, and security, and help organizations ensure that their software products are of high quality, meet customer requirements, and are secure.

ISO/IEC 25010:2011 is a standard that defines a set of quality characteristics and sub-characteristics for software products. It is a revised version of ISO/IEC 9126 and provides a more comprehensive and updated approach to software quality evaluation.

The standard defines eight main quality characteristics that software products should possess, which are:

1. Functionality – the extent to which the software meets its specified requirements and performs its intended functions.
2. Reliability – the ability of the software to perform its intended functions without failure, and to maintain a specified level of performance under specified conditions.
3. Usability – the extent to which the software is easy to use and understand, and how well it supports the user’s tasks.
4. Efficiency – the extent to which the software performs its functions using minimum resources, such as time and memory.
5. Maintainability – the ease with which the software can be modified, debugged, and maintained over time.
6. Portability – the ease with which the software can be transferred from one environment to another.
7. Compatibility – the ability of the software to interact with other systems and software products without unintended consequences.
8. Security – the ability of the software to protect itself and its data from unauthorized access, modification, and destruction.

ISO/IEC 25010:2011 also defines sub-characteristics for each of these quality characteristics, which provide a more detailed description of the desired software qualities. The standard helps organizations evaluate software products based on their quality characteristics and sub-characteristics, and to identify areas for improvement in software development and testing processes.

ISO/IEC 25010:2011 is a standard that defines a set of quality characteristics and sub-characteristics for software products. It is a revised version of ISO/IEC 9126 and provides a more comprehensive and updated approach to software quality evaluation.