Summary: Enterprise software is evolving under selection pressure from challenging economic conditions and the adaptive possibilities afforded by cloud computing, mobility, big data analytics and social engagement.  - By Charles McLellan 
Global enterprise software trends
How big is the enterprise software market? In Gartner's latest worldwide IT spending forecast (March 2013), enterprise software accounts for $296.6 billion in 2013, showing an annual growth rate of 6.4 percent over 2012's $278.8bn. The only sector currently growing faster in Gartner's forecast is Devices, at 7.9% (driven by premium smartphone upgrades). Enterprise software only comprises 7.89 percent of the 2013 IT spending pie; the biggest slice, 44.8 percent, goes to Telecom services:

At $297 billion, enterprise software will account for 7.89 percent of the total worldwide IT spend in 2013, according to Gartner's forecast. (Data: Gartner Market Databook 1Q13 Update)Gartner's figures are projected to 2017, over which period Enterprise software shows the biggest CAGR (6.6%), resulting in a spend of $383.8bn (out of $4,384bn, or 8.75 percent).

These high-level numbers only tell part of the story, however, as there are considerable changes afoot when it comes to the types of enterprise software that CIOs are considering buying.Gartner's January 2013 CIO Survey puts Analytics & Business Intelligence (BI) at the top of the priority list, followed by Mobile technologies, Cloud computing and Collaboration technologies: