[A] Response time: Response times with a GUI systems fairly stable. It not nearly instantaneous web response times can be quite variable and often aggravatingly slow. Line transmission speeds, system loads and page content can have a dramatic importance long response times can upset and frustrate user.

Methodologies adopted by feedback and guidance.

1] Providing proper feedback.

• Response time

• Dealing with time delays

• Blinking for attention

• Use of sound

2] Guidance and assistance.

• Preventing errors

• Problem management

• Providing guidance and assistance

• Problem with documentation

• How users interact with documentation

• Instruction or prompting

• Help facility

• Help facility guidelines

• Contextual help

• Help command buttons

• Status bar message

• Tool tip

• Task oriented help

• Reference help

• Wizards

• Hints or tips.