There are two ways of task design:
1) User-based task design
a) Starting from reality, map the user’s natural state of the scene into a set of similar tasks performed on the man-machine interface.
b) In the absence of similar products, obtain conceptual prototypes through in-depth interviews or focus groups, and combine usability testing to obtain possible scenarios for users.
c) In the case of similar products, use methods such as in-depth interviews or focus groups to obtain real-world scenarios of users using similar products.
d) Divide the obtained real scenes into typical scenes and atypical scenes. Give priority to design tasks according to typical scenarios.
2) Task design based on requirements specifications.
a) By studying the requirements specification, a set of user tasks that are coordinated with the design model, user model, and system hypothesis are derived.
[Case] How to do task design?
User-based task design
1) User-based task design must first obtain the real scene of the user completing the work or using similar products
2) Scenarios are stories about people and their behaviors. We use scenarios to imagine the possible behaviors of product users in the future
3) A more specific description of the scene is:
a) Who is the user
b) User’s purpose or goal
c) Description of the user’s behavior or event
d) Background information of users and usage environment, etc.
4) A scene is a description of behavior, and a behavior usually contains several tasks
5) Through in-depth interviews, focus groups and other methods, collect as many usage scenarios as possible, and through analysis, determine the typical and reduce omissions.
6) Divide a behavior into several tasks, decompose a task into several subtasks, and complete the task design
a) Layer by layer analysis method
b) Object-oriented analysis method
7) In the usability test, several scenarios need to be linked together in the form of a story to simulate the real usage scenarios of users in order to obtain the most valuable information
Task design based on requirements specification
1) Carefully read the requirements manual and extract the function settings
2) Link related functions to define typical scenes and secondary scenes
3) According to the scenario, analyze the task and decompose the task into sub-tasks
Source: The Beauty of Experience
