Software interface Design

> mainly includes:
> user input and Output interface styles
> Operation mode
The transfer relationship between > interfaces
> can also be an interface prototyping program written by development tools
Note the issue:
> let users fully test before coding, especially usability testing

Identification and classification of input and output
1. During the requirements analysis phase, the analyst has identified key inputs and outputs for detailed identification during the design phase.
2. In the traditional method, the input and output are identified by adding more detail data stream in the flow chart
3. In an object-oriented approach, the message that enters and leaves the system is the input output to be recognized, and in the case diagram, the role provides input to the use case as a role
Provides output, in the interaction diagram, the method in the design class diagram, the transformation in the state diagram, all can identify the input and output to provide information
User interface and System interface
1. User interface refers to the input and output department that requires user interaction in the system.
2. The system interface refers to the output part that rarely requires personnel intervention, which is more subtle such as electronic information from other systems
Send messages or messages to other systems, etc.
Understanding the user interface
1. Physical characteristics of the user interface (user-accessible device, mouse, keyboard, touch screen)
2. Perceived characteristics of the user interface (see, hear, touch, such as the window displayed on the screen, data, text, recognition instructions)
3. The conceptual characteristics of the user interface (the process of completing your business on a system interface displayed on the screen, with a clear understanding of the sequence)
4. User-centric design technology
> Early attention to users and their work
> repeated evaluation of system design to ensure availability
> Using iterative development methods
> HMI research Field
Guidelines for Interface Design
1. Principles of visibility and accessibility
> Visibility (Specifies that all controls must be visible and that the control should provide timely feedback responses after a user action, such as a change in shape or a beep after the button is pressed)
2.> Availability (Specifies that the appearance of all spaces should reflect and reflect the functions implemented by the control
such as scroll bar provides content scrolling function)
3. Beautiful Engaging
4. Adjusting the interface

8 Golden Rules
1. Try to maintain consistency
2. Provide shortcut keys for skilled users
3. Provide feedback information
4. Design a complete dialogue process
5. Provide a simple error handling mechanism
6. Allow undo operation
7. Provide control of the internal trajectory
8. Reduce the short-term memory burden

Software interface Design