System integration is an IT or engineering process or phase concerned with joining different subsystems or components as one large system. It ensures that each integrated subsystem functions as required. System integration is also used to add value to a system through new functionalities provided by connecting functions of different systems.

Software development is an iterative logical process that aims to create a computer coded or programmed software to address a unique business or personal objective, goal or process. Software development is generally a planned initiative that consists of various steps or stages that result in the creation of operational software. Software development is primarily achieved through computer programming, which is carried out by a software programmer and includes processes such as initial research, data flow design, process flow design, flow charts, technical documentation, software testing, debugging and other software architecture techniques.

Consulting is the business of providing expert advice to a specific group of people.

Customer support is generally defined as service efforts from technology vendors and providers that focus on helping customers to use products and services correctly, efficiently and effectively. Many see this specific type of support as part of a larger category of customer service, but while customer support is often provided in response to customer demand, it is also part of intelligent planning for a wide variety of IT companies.