Information technology consulting (IT consulting, Computer consultancy, Computing consultancy, technology consulting or business and technology services) is a field that focuses on advising businesses on how best to use information technology to meet their business objectives. In addition to providing advice, IT consultancies often implement, deploy, and administer IT systems on businesses' behalf.
The IT consulting industry can be viewed as a Four-tier system:
- Professional services firms which maintain large professional workforces and command high bill rates.
- Staffing firms, which place technologists with businesses on a temporary basis, typically in response to employee absences, temporary skill shortages and technical projects.
- Independent consultants, who function as employees of staffing firms or as independent contractors in their own right
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