Systems analysis and development CIS210 ch 12

CIS 210Systems Analysis and Development Week 7 Part II Designing Interfaces and Dialogues... Objectives • Upon completion of part II you will be able to: – Understand and be able to expl

CIS 210

Systems Analysis and Development

Week 7 Part II

Designing Interfaces

and Dialogues

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

• 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

Interaction Methods

and 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

Interaction Methods

and 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

Interaction Methods

and Devices

• Hardware Options

– Keyboard

– Mouse

– Joystick

– Trackball

– Touch screen

– Light pen

– Graphics tablet

– Voice activated commands

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

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

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

• Interaction methods and devices

• Designing interfaces

• Designing dialogues

• GUI environments