Business requirements relates

本文探讨了业务需求中的功能性与非功能性需求的区别及实现方法。功能性需求定义了软件系统或其组件的功能,包括输入、行为和输出;而非功能性需求则关注系统的性能、安全性和可维护性等方面。

摘要生成于 C知道 ,由 DeepSeek-R1 满血版支持, 前往体验 >

Business requirements usually consist of both functional requirements and non-functional requirements. The plan for implementing functional requirements is detailed in the system design. The plan for implementing non-functional requirements is detailed in the system architecture.

functional requirement defines a function of a software system or its component.

A function is described as a set of inputs, the behavior, and outputs. may be calculations, technical details, data manipulation and processing and other specific functionality that define what a system is supposed to accomplish. Behavioral requirements describing all the cases where the system uses the functional requirements are captured in use cases

non-functional requirement is a requirement that specifies criteria that can be used to judge the operation of a system. Like security , usability,testability, maintainability, extensibility and scalability

 

Business requirements are often listed in a Business Requirements Document or BRD. The emphasis in a BRD is on what is required, rather than on how to achieve it, which is usually delegated to a Systems Requirements Specification or Document (SRS or SRD) or other variation such as a Functional Specification Document. While supposedly describing the product, system, or software from an external perspective, such documents often define the product/system/software requirements in the context of a chosen technology (a solution approach or architecture). 

Executing: nios2-swexample-create --describeAll (c:\altera\13.1\quartus\bin64) 1 [main] bash 55472 find_fast_cwd: WARNING: Couldn't compute FAST_CWD pointer. Please report this problem to the public mailing list cygwin@cygwin.com 1 [main] uname 31748 find_fast_cwd: WARNING: Couldn't compute FAST_CWD pointer. Please report this problem to the public mailing list cygwin@cygwin.com <nios2-swexample name="float2_gcc" display_name="Float2 GCC"> Float2 GCC Example shows how to infer the floating point operations provided by the Floating Point Hardware 2 component. A user may inspect the objdump file to see the code generated by GCC. The Floating Point Hardware 2 component is the 2nd generation of floating-point custom instructions for Nios II. It offers improved performance, hardware acceleration of more operations, and reduced resource usage relative to the 1st generation. Results are not fully IEEE 754 compliant due to the implementation of simplified rounding. System Requirements ******************* The following component must be connected to the Nios II: - 'Floating Point Hardware 2' component </nios2-swexample> <nios2-swexample name="hello_world_small" display_name="Hello World Small"> Hello World Small prints 'Hello from Nios II' to STDOUT. The project occupies the smallest memory footprint possible for a hello world application. This example runs with or without the MicroC/OS-II RTOS and requires an STDOUT device in your system's hardware. For details, click Finish to create the project and refer to the readme.txt file in the project directory. The BSP for this template is based on the Altera HAL operating system with reduced code footprint. For information about how this software example relates to Nios II hardware design examples, refer to the Design Examples page of the Nios II documentation available with your
03-22
评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值