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In software development and product management, a user story is an informal, natural language description of features of a software system. They are written from the perspective of an end user or user of a system, and may be recorded on index cards, Post-it notes, or digitally in specific management software. [1]
Business requirements in the context of software engineering or the software development life cycle, is the concept of eliciting and documenting business requirements of business users such as customers, employees, and vendors early in the development cycle of a system to guide the design of the future system.
Big business involves large-scale corporate-controlled financial or business activities. As a term, it describes activities that run from "huge transactions" to the more general "doing big things". In corporate jargon, the concept is commonly known as enterprise, or activities involving enterprise customers. [1] [2] [3]
Common formats for backlog items include user stories and use cases. [25] The product backlog may also contain the product owner's assessment of business value and the team's assessment of the product's effort or complexity, which can be stated in story points using the rounded Fibonacci scale. These estimates try to help the product owner ...
A draft story should not form a rigid contract detailing the design but should instead talk of business outcomes the user will be able to conduct once implemented. The amount of 'wiggle room' the analyst leaves the Developer in this regard is a measure of its Negotiability.
Each use case provides a set of scenarios that convey how the system should interact with a human user or another system, to achieve a specific business goal. Use cases typically avoid technical jargon, preferring instead the language of the end-user or domain expert. Use cases are often co-authored by requirements engineers and stakeholders.
The point of a user story is to identify the user role and the requirement associated with the role. For example, a properly written user story might be: "As the editor of a document I want the most recent document I have been working on to open when the application starts up."
The following principles help in ensuring a design is user-centered: [11] Design is based upon an explicit understanding of users, tasks and environments. Users are involved throughout design and development. [12] Design is driven and refined by user-centered evaluation. Process is iterative (see below). Design addresses the whole user experience.