User Interface Complexity

	simple data input
	static view of data
	customizable views
	dynamic view of data
	interactive graphics

Deployment constraints for User Interfaces

	handheld device
	any web brwoser on the internet
	late-model web browser on the internet
	late-model web browser on a network
	specific  browser on a network
	dedicated workstations on a network

 Number and Type of Users

	small Number of dedicated users
	general use within an organizatioin
	large audience with high interest
	huge audience with low interest

 Available Bandwidth

	dial-up internet connection
	fast internet connection
	dedicated network between client and server

Types of System Interfaces

	data transfer
	services through a protocol
	direct access to system services

Performance and Scalability

	read-only
	isolated updates
	concurrent updates