![]() ![]() Architectural requirements are more descriptive of connections between the subsystems to form the final system. Nonfunctional requirements are how well the system should perform in one or more areas. Robustness – The robustness of a software application is the measure of the ability of a software application to deal with invalid or erroneous input effectively. Functional requirements are what the system should do.The longer the MTBF the more reliable is the application. A Functional Requirement Specifications (FRS) document is a granular and low-level. It finally describes ‘How’ exactly the system is expected to function to satisfy all the requirements listed in the BRD and SRS. The FRS document is the most detailed and granular document of the three. Reliability – Reliability of a software system makes use of the Mean Time Between Failure (MTBF) parameter that is the time elapsed between 2 failures. Functional Requirement Specifications (FRS) Document. Functional Requirements Please describe your level of satisfaction with your current or recent vendor(s) for the same purchasing activity, if applicable.Performance – Performance is a non-functional requirement that deals with the measure of the response time of the application under different load conditions.Maintainability – Maintainability is defined as the ease with which an application can be restored to working conditions after a failure.Interoperability – Interoperability is the ability of an application to work in conjunction with other applications smoothly at present as well as in the future.Durability – Durability is the measure of the ability of the application to cater to the requirements for a long period of time.Data integrity – Data integrity deals with the integrity, consistency, and correctness of the data in the application.Accessibility – Accessibility is the ability of an application to cater to the needs of the user with special needs or disabilities using some Assistive technology like screen readers.It is the measure of the resilience of the application under any type of malicious attack. Security – Security is one of the most important attributes of NFRs.Vertical scaling is provided by adding more CPU and RAM to the available machines. Horizontal scaling is provided by adding more machines. It is of two types horizontal and vertical scaling. Scalability – Scalability is defined as the ability of the system to cater to the growing usage of the application.For example, in the case of a new application, the easier the flow of the application is for the user to operate it smoothly, the better will be the usability. Usability – Usability is defined as the measure of the degree to which an application can be easily used and operated.on the basis of which application’s quality is measured.įollowing are some of the attributes of examples of NFRs. The way an application will operate is nothing but some defined quality parameters like accessibility, efficiency, reliability, usability, interoperability, etc. Non-functional requirements or NFRs are the set of requirements that defines how well a system will operate as opposed to functional requirements that focus on the specific business functionalities that an application performs. ![]()
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