How are pre-qualified jobs different from other ProZ.com jobs?

The key differences with the pre-qualified job posting approach are:

• Outsourcers can work with their regular pre-approved service providers
• Complete work materials and terms are provided in advance
• The first pre-qualified provider to accept the job gets it, and can begin working right away
• Invitations are sent over time to an ordered list of providers (instead of all at once)