A CIO runs the organization's internal IT operations. Additionally, the CIO serves as the company's top technology infrastructure manager and works to streamline business processes with technology.

CIO mostly focuses on internal customer (users) and manages vendors that supply infrastructure solutions.

You know you have a great CIO when they are organized and develop strategies to increase the company's profitability.

• CIO usually reports to CFO

A CTO creates technology to sell to customers. Additionally, the CTO serves as the company's top technology architect and runs the organization's engineering group.

CTO mostly focuses on external customer (buyers) and manages vendors that supply solutions to enhance the company's product.

You know you have a great CTO when they are developing strategies to increase the company's revenue.

• CTO usually reports to CEO or COO

A chief data officer (CDO) is a corporate officer responsible for enterprise-wide governance and utilization of information as an asset, via data processing, analysis, data mining, information trading and other means.

• CDO usually reports to CIO

The chief information security officer (CISO) is the head of IT security, driving the IT security strategy and implementation forward while protecting the business from security threats and cyber-hacking. Operational compliance to all ISO and other standards and regulations is the responsibility of the CISO.

• CISO usually reports to CIO

A technical director (TD) is usually a senior technical person (within a software company, engineering firm, film studio, theatrical company or television studio).

This person usually possesses the highest level of skill within a specific technical field and may be recognized as an expert in that industry.

• TD usually reports to an IT executive