Gartner defines custom software development (CSD) services as those that develop software in rapid increments and iterate custom applications and software products to meet an organization’s unique business needs. CSD services entail gathering business requirements and coding applications from inception, building applications on a platform as a service (PaaS), or assembling applications from existing web services or other reusable pieces of code. Services marketed as “software product engineering” or “digital product development” are likely to be examples of the category Gartner defines as CSD services.
IT Infrastructure and IoT refers to the products and services that support the deployment, management, and optimization of core technology systems and connected devices across enterprise environments. This category includes markets that focus on enabling organizations to build and operate resilient, scalable, and intelligent infrastructure. It encompasses solutions for data center management, network infrastructure, and IoT connectivity—spanning on-premises, cloud, edge, and hybrid models.