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There are many non functional requirements of an Android application. Some being performance, quality, portability, maintainability, availability, and many, many more. One functional requirement of an Android application is the Android platform.
Non-functional requirements of a banking system are basically unnecessary requirements that are not reliant upon the functional requirements of the system. They typically include system performance, availability and security.
Functional & Nonfunctional Requirements • Functional Requirements: Actions that a system must be able to perform without taking physical constraints into considerations. • Nonfunctional Requirements: Describe the required attribute of the system (performance, security, etc.). With Use Case • Use cases place the functional requirements into the context of a user. • Use case can also be used to capture any nonfunctional requirements that are specific to the use cases. Misconceptions related to Use Cases • Use cases are nothing else than capturing functional requirements. • Nonfunctional requirements are captured apart from the use cases.
Non Functional Requirements e.g Performance constraint and Quality constraints
Availability can make security more difficult.
Functional & Nonfunctional Requirements • Functional Requirements: Actions that a system must be able to perform without taking physical constraints into considerations. • Nonfunctional Requirements: Describe the required attribute of the system (performance, security, etc.). With Use Case • Use cases place the functional requirements into the context of a user. • Use case can also be used to capture any nonfunctional requirements that are specific to the use cases. Misconceptions related to Use Cases • Use cases are nothing else than capturing functional requirements. • Nonfunctional requirements are captured apart from the use cases.
It is testing of "how" the system works. Non functional testing may be performed at all test levels. The term non-functional testing describes the tests required to measure characteristics of systems and software that can be quantified on a varying scale, such as response times for performance testing. Types of Non-functional testing are performance testing, load testing, stress testing, usability testing, maintainability testing, reliability testing and portability testing.
architecture
There are many functional and non functional requirements of a web search engine. The non functional requirements would be the design you see, while the functional requirement would be the search bar.
what are the functional requirements of a website
->Less error prone functional style to reduce bugs. ->High maintainability and productivity. ->Provides features of concurrent programming by immutable types and actor based (asynchronous messaging) concurrency. ->High scalability - can use multi core architecture. ->High Testability -- code written in functional ways is more testable.
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