Windows Color System - Use Cases
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The Windows Color System (WCS) is the new color management system planned for Microsoft Windows Vista.
The download provided here offers a set of WCS use cases for developers. Note that the download documents include a Technical Document Agreement (TDA).
In the download package:
| • | Accomplish End-to-End Color Workflow in Vista |
| • | Access Color User Interface |
| • | Configure Color |
| • | Connect a Color Device to a Vista PC |
| • | Install WCS |
| • | WCS Use Case Definitions |
A use case captures a contract between the stakeholders of a system about its behavior. The use case describes the system's behavior under various conditions, as the system responds to a request from one of the stakeholders (the primary actor). The system has a service promise to fulfill the primary actor's goals while protecting the interests of all the stakeholders.
The primary actor initiates an interaction with the system to accomplish some goal; the system responds to user input. Different sequences of behavior, or scenarios, can unfold, depending on the particular requests made and the conditions surrounding the requests. The use case gathers those scenarios together. The main success scenario is a top-to-bottom typical scenario, covering the minimal steps to successfully reach goal delivery. Extensions are optional additional steps the user may take to create a richer experience, or system exceptions the user may have to deal with after completing a step. Sub-variations are potential replacements for a step in the main scenario, which will cause eventual bifurcation in the scenario.
During system development, use cases are crucial to discovering behavioral requirements of the system, and linking user goals to system design. When system development is complete, use cases help describe the purpose, behavior and status of the system, evaluate design, and communicate new requirements.
