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CHAPTER 3 DESIGN & PROTOTYPING - Coggle Diagram
CHAPTER 3
DESIGN & PROTOTYPING
Design Principles
Visibility
Placing the controls in a highly visible location
Feedback
Feedback is the
provision of information to a user about the result of an action
When feedback is used in design, the system tells the user that it has done something in response to the user's input
Constraints
Restricting the possible actions that can be performed helps prevent user from selecting incorrect options
Three main types to represent constraints
Logical
Cultural
Physical
Mapping
Mapping is a relationship between controls and their action or effect in the world
provide the user with an understanding of how something works
Consistency
Internal consistency refers to designing operations to behave the same within an application
External consistency refers to designing operations, interfaces, etc., to be the same across applications and devices
Affordances
properties of an object that indicate how it can be used
Design vs Interaction Design
Design
is a practical and creative activity with the aim of developing a product that helps its user achieve their goals.
Interaction Design
is designing interactive products to support the way people communicate and interact with their everyday and working lives.
Interaction Design Approaches
Activity-centered Design
Focus on the behavior surrounding particular tasks – support human behavior.
System Design
System design is a structured, accurate, and holistic design approach.
Focuses on context and its particularly appropriate for complex problem.
User-centered Design
The user knows best and is the only guide to the designer.
Designer’s role : to translate the user’s needs and goals into a design solution.
Genius Design
Known as rapid expert design
It relies on the experience and creative talent of a designer.
Establishing Requirements
achieve with :
Data gathering
Analysis
Interpretation
Extract requirement
Presentation
Types of Requirements
Data Requirements
Capture the type, volatility, size/amount, accuracy and value of the required data.
Environmental Requirements
Refer to the circumstances in which the interactive product will operate.
Functional Requirements
Capture what the product should do.
Prototyping
A prototype is one manifestation of a design that allows stakeholders to interact.
Types of Prototyping
Low-fidelity Prototyping
Simple, cheap, and quick to produce and to modify.
Important in early stage of development especially during conceptual design – used for exploring idea.
High-fidelity Prototyping
Produces a prototype that looks much more like the final thing.