21Modular task-based informationTask-based documentation organizes information in a structured, modular,task-centric format. Task-based documentation focuses on what youmust do, and the sequence in which you must perform a set of tasks orprocedures.The goal is to make Nortel documentation easy-to-find, easy-to-use, timely,and accurate. This section helps you to understand the structure andterminology associated with task-based documentation, see the followingsections.Navigation• "Work flows and task flows" (page 21)• "Structure of work flows, task flows, and procedures" (page 21)Work flows and task flowsTask-based documentation emphasizes procedural information. Flow chartsprovide the primary navigation to tasks and procedures whenever thereis a required order and flow to the actions you must perform to completea given job.Flow charts (called work flows and task flows) illustrate which tasks orprocedures and decisions are involved in an activity. The flow charts guideyou through any type of activity on the Metro Ethernet Routing Switch8600, whether it is initial installation, configuration, upgrades, routinemaintenance, or troubleshooting.Each flow chart links to the tasks or procedures that you need to perform.Always follow the work flows and task flows so that you perform the requiredprocedures in the correct order.Structure of work flows, task flows, and proceduresFor consistency, work flows, task flows, and procedures contain similarelements. Each element has a specific function:• "Purpose statements" (page 22)Nortel Metro Ethernet Routing Switch 8600Documentation RoadmapNN46220-101 02.01 Standard4.2 3 August 2007Copyright © 2007, Nortel Networks.