Page "Professional services" Paragraph 8

The selection of an independent contractor or consultant providing professional services usually depends on skill, knowledge, reputation, ethics, and creativity.

Prices for services, even within the same field, vary greatly.

Some professional-service providers are able to give fixed rates for projects, while others define the price only after assessing the work involved.

For this reason, it is common to hire professionals on the basis of an hourly fee and of an estimated length of project ( scope ).