A study by analyst IDC shows how companies are using the open source Hadoop big data analytics systems alongside other systems to get value out of their data.IDC's "Trends in Enterprise Hadoop Deployments" report, commissioned by Red Hat, found that 32 percent of companies questioned had deployed Hadoop. An additional 31 percent said they had plans to deploy Hadoop within 12 months, and 36 percent said their Hadoop deployment schedule could go beyond 12 months.