Sameer Chavan's Portfolio of Web UI Design, Usability & Industrial Design...

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User Centered Design - UI Process

Predesign stage:
* know the user: individual characteristics, current and desired tasks, functional analysis, evolution of the user and the job
* competitive analysis
* setting usability goals; financial impact analysis

Design stage:
* parallel design
* participatory design
* coordinated design
* guidelines and heuristic analysis
* prototyping
* empirical testing
* iterative design; capture design rationale

Postdesign stage:
* collect feedback from field use
* figure out who's going to use the system to do what
* choose representative tasks for task-centered design
* plagiarize (using parts of old designs)
* rough out a design
* think about it
* create a mock-up or a prototype
* test it with users
* iterate
* build it
* track it
* change it

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A very good comparison of Software development process and Usability Process.

Typical Development Tasks	Usability Tasks
PHASE 1: SCOPE
high-level requirements definition
define project scope
overall project planning	usability project planning
project team organization	usability role assignment
	user profile
	contextual task analysis
	usability goal setting
phase 2 planning
PHASE 2: REQUIREMENT DEFINITION / DESIGN
	workflow reengineering
	hardware/software definition
	UI mockups
	iterative UI walkthroughs
	UI conceptual model design
functional modeling	style guide development
data modeling
prototype functional design	prototype UI design
prototype development
iterative requirements definition	iterative UI evaluation/testing
system architecture design	detailed UI design
phase 3 planning
PHASE 3: DEVELOPMENT
detailed system design
test plan development
system development
iterative system testing	iterative UI evaluation/testing
documentation development
training development
customer acceptance testing
phase 4 planning
PHASE 4: INSTALLATION
customer training
installation
customer support	user feedback

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