CIS 210 Systems Analysis and Development

1
CIS 210Systems Analysis and Development

• Week 7 Part II
• Designing Interfaces
• and Dialogues

,
2
Objectives

• Upon completion of part II you will be able to
• Understand and be able to explain the concepts
  related to designing interfaces and dialogues for
  the deliverables for their creation
• Understand and be able to explain the concepts
  related to contrasting and applying interaction
  methods within a system
• Understand and be able to explain the concepts
  related to input devices, layout designs,
  structured data entry fields, feedback and system
  help.
• Understand and be able to explain the concepts
  related to designing graphical user interfaces

3
Overview

• System Interface Design
• How information is provided
• How information is captured
• Dialogue Design
• Sequencing of interface displays
• The Process of Designing Interfaces and Dialogues
• User-focused
• Iterative process
• Deliverables
• Narrative overview
• Sample design
• Testing and usability assessment
• Dialogue sequence

4
Interaction Methodsand Devices

• Command Language Interaction
• User enters explicit statements
• Command syntax and semantics
• Good for experienced users
• Menu Interaction
• Menu hierarchies
• Pop-up menu
• Drop-down menu

5
Interaction Methodsand Devices

• Form Interaction
• Fill in the blanks
• Effective for input and presentation
• Effectively designed forms
• Object-Based Interaction
• Icons
• Graphic symbols
• Natural Language Interaction
• Artificial Intelligence

6
Interaction Methodsand Devices

• Hardware Options
• Keyboard
• Mouse
• Joystick
• Trackball
• Touch screen
• Light pen
• Graphics tablet
• Voice activated commands

7
Designing Interfaces

• Designing Layouts
• Basing design on paper forms
• Between-field navigation
• Flexibility and consistency
• Structuring Data Entry
• Rules to consider
• Controlling Data Input
• Data entry errors
• Providing Feedback
• Status information
• Prompting Cues
• Error or warning messages
• Providing Help
• Commercial help products

8
Designing Dialogues

• Dialogue Design Process
• Designing the sequence
• Dialog diagramming
• Building a prototype
• Assessing usability
• General Rules
• Consistency
• Shortcuts
• Feedback
• Closure
• Error handling
• Reversal
• Control
• Ease

9
GUI Environments

• GUI Design Issues
• Common Rules
• Become an expert of the GUI environment
• Understand resources
• Working with standards
• Dialogue design issues
• Establishing a sequence of displays
• Dialogue diagramming

10
Summary

• Interaction methods and devices
• Designing interfaces
• Designing dialogues
• GUI environments