A non-functional requirements catalog for a digital solution includes a set of criteria and characteristics that describe how the solution should perform, rather than what it should do. These requirements focus on aspects such as performance, security, usability, reliability, and other quality attributes that determine the overall effectiveness and user experience of the solution. Here are some common categories of non-functional requirements that are often included in such a catalog: + Performance: Defines the speed, responsiveness, scalability, and efficiency of the solution under varying conditions, such as user load, data volume, or network latency. + Usability: Specifies the ease of use, intuitiveness, and accessibility of the solution, ensuring that it meets the needs and expectations of its intended users. + Reliability: Addresses the solution's ability to consistently perform its functions accurately and reliably over time, minimizing downtime and data loss. + Security: Covers the protection of data, information, and system resources against unauthorized access, tampering, or breaches. It may include aspects such as authentication, encryption, and compliance with relevant security standards. + Availability: Describes the solution's uptime requirements, including its ability to remain accessible and operational during scheduled maintenance or unexpected outages. + Scalability: Defines the solution's ability to handle increasing workload or user demand by efficiently utilizing resources and adapting to changing circumstances. + Maintainability: Refers to the ease of maintaining and modifying the solution, including aspects such as code maintainability, documentation, and the availability of development and debugging tools. + Interoperability: Specifies the solution's ability to integrate and communicate with other systems or components, often through the use of standardized protocols or interfaces. + Compliance: Ensures that the solution adheres to relevant laws, regulations, and industry standards, such as data protection regulations or accessibility guidelines. + Performance Efficiency: Focuses on optimizing resource usage, minimizing energy consumption, and maximizing the efficiency of the solution's operations. + Testability: Defines the ease with which the solution can be tested to ensure that it meets its functional and non-functional requirements, often through the use of automated testing tools and techniques. + Internationalization and Localization: Addresses the solution's ability to support multiple languages, regions, and cultural conventions to cater to a global user base. These are just some examples of non-functional requirements that may be included in a catalog for a digital solution. The specific requirements will depend on the nature of the solution, its intended use, and the stakeholders' needs.