©2001 Southern Illinois University, Edwardsville All rights reserved.

CS 321 Human-Computer InteractionCS 321 Human-Computer InteractionTodayToday

Design from Data

Reading:CD Ch. 11, 12, & 13

WednesdayWednesday

System Design

Reading:CD Ch. 14, 15, & 16

©2001 Southern Illinois University, Edwardsville All rights reserved.

Design of the System comesDesign of the System comesfrom the Customer Datafrom the Customer Data

BUTBUT

Design is NOT explicit in Design is NOT explicit in the data, it requires a the data, it requires a

creative leapcreative leap

©2001 Southern Illinois University, Edwardsville All rights reserved.

Data guides, constrains, and Data guides, constrains, and suggests directionssuggests directions

See a fact about work

See why that fact matters

Recognize opportunities and implications of applying technology

Turn into concrete design ideas

Example: “The Electronic Napkin”

©2001 Southern Illinois University, Edwardsville All rights reserved.

Example: The Electronic NapkinExample: The Electronic Napkin

©2001 Southern Illinois University, Edwardsville All rights reserved.

Don’t Just AutomateDon’t Just AutomateRe-EngineerRe-Engineer

The design team is in a unique position to re-design the work practice

Consolidated models provide an overall picture of the current work practices

Redefining roles, lines of communication, physical layouts, sequence of activities, and useful artifacts.

©2001 Southern Illinois University, Edwardsville All rights reserved.

Consolidated Flow ModelConsolidated Flow Model

Look for Role Switching•Reduce context switch overhead•Reduce redundant data entry•Support interface consistency across roles•Consider role separation•Automate roles

Look for Role Sharing•Tailor data and interface to user

Look for Communication Problems between Roles•Support lines of communication

©2001 Southern Illinois University, Edwardsville All rights reserved.

Consolidated Physical ModelConsolidated Physical Model

The physical model shows constraints imposed by the environment and the structure people create within the constraints to get their work done.

Look for Communication Problems

• Account for work being spread over various locations

• Improve the flow of artifacts

©2001 Southern Illinois University, Edwardsville All rights reserved.

Consolidated Sequence ModelConsolidated Sequence Model

Reveals structure of the work•Intents, triggers, activities, strategies

What is the primary intent, and is it worth doing?

If it is worth doing, can the sequences and triggers be redesigned?

•Eliminate steps•Automate steps•Eliminate breakdowns•Provide appropriate triggers

©2001 Southern Illinois University, Edwardsville All rights reserved.

Consolidated Artifact ModelConsolidated Artifact Model

Reveals structure and intent of artifacts• Information content, organization, usage

Look for ways to support intent• Support intent more directly• Support intents indicated by informal usage

Look for Information Content• Provide data automatically• Support Communication between roles

Look for Structure• Maintain the distinctions that matter to the user

(implies strategy)

©2001 Southern Illinois University, Edwardsville All rights reserved.

Getting the Team to be CreativeGetting the Team to be Creative

What is creative thinking?

Creative thinking requires an attitude that allows you to search for ideas and manipulate your knowledge and experience

Use crazy, foolish, or impractical ideas as stepping stones to practical new ideas

Break the rules occasionally

Open yourself up to new possibilities and change.

©2001 Southern Illinois University, Edwardsville All rights reserved.

Creative Interfaces

©2001 Southern Illinois University, Edwardsville All rights reserved.

Creative Interfaces

©2001 Southern Illinois University, Edwardsville All rights reserved.

Creative Interfaces

©2001 Southern Illinois University, Edwardsville All rights reserved.

Creative Interfaces