Research firm Gartner forecasts IT spending will reach nearly $4.5 trillion worldwide this year, with enterprise software, IT services, and data center systems leading the way. The projected $4.45 trillion in spending this year represents an increase of 5.1% compared with 2021.\nThe largest growth segment is enterprise software, which is projected to grow 11% to $672 billion. However, Gartner includes the cloud market in the enterprise software market, and that's where the growth is.\n\n Read more: Gartner's top infrastructure and operations trends for 2022\n\nThe cloud market became larger than non-cloud market for the first time in 2020, and by 2025, Gartner expects it to be double the size of the non-cloud market. Cloud is responsible for nearly all of the spending growth within the enterprise software segment in 2022 as organizations focus on software-as-a-service (SaaS).\nData center systems account for the smallest group by dollar amount, at $226 billion, but will represent annual growth of 4.7%. The largest IT spending market in 2022 is communications services, which is expected to reach $1.46 trillion this year with a climb of just 1.3% compared with 2021.\nThe managed and consultancy IT services market is in line for the second-highest spending growth in 2022. It's expected to grow by 7.9% annually to $1.28 trillion as businesses increase their reliance on external consultants to help with their cloud strategies.\n\u201cGartner expects the vast majority of large organizations to use external consultants to develop their cloud strategy over the next few years,\u201d said John-David Lovelock, a distinguished research vice president at Gartner, in a statement. \u201cStaff skills gaps, wage inflation and the war for talent will push CIOs to rely more on consultancies and managed service firms to pursue their digital strategies.\u201d\nLovelock said 2022 will be the year that \u201cthe future returns for the CIO,\u201d meaning they stop focusing on short-term and stopgap projects and resume focusing on the long term.