DMS 546 / DMS 446 INTERFACE DESIGN Spring Al Larsen TASK ANALYSIS slides and lecture based on Chapter 3 of User-Centered Website Development (McCracken & Wolfe)‏

DMS 546 / DMS 446 INTERFACE DESIGN Spring Al Larsen GETTING STARTED: TASK ANALYSIS slides and lecture based on Chapter 3 of User-Centered Website Development (McCracken & Wolfe)‏

DMS 546 / DMS 446 INTERFACE DESIGN Spring Al Larsen YOU ARE NOT YOUR USER

DMS 546 / DMS 446 INTERFACE DESIGN Spring Al Larsen GOALS, TASKS, ACTIONS GOALS: What people want to accomplish. buying shoes find a customer's shipping address being entertained (not technology dependent)‏

DMS 546 / DMS 446 INTERFACE DESIGN Spring Al Larsen GOALS, TASKS, ACTIONS TASKS: Mechanisms people use to accomplish goals. buying shoes  drive to store  talk to salesperson  try on shoes buying shoes  enter url of website  search for styles  check availability of size (tasks can change with technology)‏

DMS 546 / DMS 446 INTERFACE DESIGN Spring Al Larsen GOALS, TASKS, ACTIONS ACTIONS: The individual steps to accomplish a task  buying shoes enter url of website  open web browser  place cursor  remember url  type it correctly  press “return” or click “Go” search for styles  find search form  etc.

DMS 546 / DMS 446 INTERFACE DESIGN Spring Al Larsen GOALS, TASKS, ACTIONS GRANULARITY The level of detail in your description of tasks, sub-tasks and actions.

DMS 546 / DMS 446 INTERFACE DESIGN Spring Al Larsen GOALS, TASKS, ACTIONS GRANULARITY The level of detail in your description of tasks, sub-tasks, actions.

DMS 546 / DMS 446 INTERFACE DESIGN Spring Al Larsen GOALS, TASKS, ACTIONS TASK SEQUENCES Task Sequences describe the order in which the tasks take place write the letter address the envelope put letter in envelope put stamp on envelope Is that the only way to do the task? Observe your users in action. Strive to give the user flexibility to complete the job in whatever sequence is most comfortable. A new system should disrupt users' usual way of doing things as little as possible Do you have a reason to restrict your user to that sequence?

DMS 546 / DMS 446 INTERFACE DESIGN Spring Al Larsen GOALS, TASKS, ACTIONS TASK HIERARCHIES shows the components of a task (sub-tasks, actions)‏ can take the form of a flow chart level of detail is dependent on project

DMS 546 / DMS 446 INTERFACE DESIGN Spring Al Larsen

PROCEDURAL ANALYSIS Most detailed Shows individual steps and decisions the user goes through in carrying out a task Takes into account how the constraints of the user interface effect the process

DMS 546 / DMS 446 INTERFACE DESIGN Spring Al Larsen