IT Intros

In today’s world, nearly every part of a business depends on technology.

IT organizations play a crucial role in making sure that systems, applications, and data work together to support daily operations. But what exactly do IT teams do, and how do they manage the many systems, platforms, and tools that make everything run?

This Tech Guide for Business explains all of this using an intuitive structure that helps readers understand both what IT organizations do and how they are organized.

This structure breaks IT work down into eight primary Functions, twenty-seven Function Areas, and about two hundred recurring IT Concepts, which together describe the whole landscape of IT responsibilities. This approach enables anyone, regardless of their technical background, to understand how IT components work together as a system.

At the highest level, IT work can be viewed as having eight primary responsibilities, which we refer to as IT Functions. They represent the broad categories of work that every IT organization performs, no matter its size or structure, including:

• IT Management – Manages the organization, implements standard processes, plans projects, and sets priorities to guide all the IT activities. 
• Solution Delivery – Uses structured approaches to analyze business needs and then design, build, test, and implement new IT solutions.
• Security Solutions – Ensures that systems are protected and only authorized users can access them, thereby maintaining the integrity, privacy, and safety of data and systems.
• Business Solutions – Provides the live production applications and platforms that support users and drive the day-to-day work of the business.
• Data and Analytics – Manages data organization and analysis to support reporting, decision-making, and business intelligence.
• Infrastructure – Hosts and connects all the cloud platforms, servers, network components, and operating systems that the Data and Business Solution layers run on.
• Physical Facilities – Maintains the data centers and physical environments where IT components reside and operate.
• Support Services – Helps users resolve system issues and maintains the availability and performance of IT systems.

These eight functions serve as the major categories for IT work. Even if an organization uses different names or divides them differently, these responsibilities always exist somewhere within the IT group.

Each of the eight primary functions can be further divided into twenty-seven Function Areas, which are essentially sub-functions. These describe the specific areas of expertise or types of work within IT, for example, Software Development, Middleware, or Databases.

These Function Areas provide a clear and organized view of how IT operates behind the scenes. They illustrate how work progresses through the planning, development, and deployment stages, as well as the details of the “tech stack” layers on which the live Business Solutions are built. The twenty-seven IT Function Areas include:

• IT Management – 2
  • Internal IT Management and External IT Management. 
• Solution Delivery – 5
  • Business Analysis, Project Management, Solution Development, Quality Assurance, and Delivery Management.
• Security Solutions – 2
  • Security Management and User Access Management.
• Business Solutions – 3
  • End User, Software Applications, and Middleware.
• Data and Analytics – 3
  • Data Analytics, Data, and Databases. 
• Infrastructure – 6
  • Cloud Platforms, Server Platforms, Operating Systems, Server Hardware, Network, and Data Storage. 
• Physical Facilities – 3
  • Datacenters, Offices, and Field locations.
• Support Services – 3
  • Security Support, System Support, and User Support.

Together, the main IT Functions and Function Areas describe the overall IT organization.

We use them as the framework for organizing all sections of this Tech Guide, as they provide intuitive navigation for readers and illustrate how different specialties come together to form a comprehensive technology ecosystem. 

Beyond functions and sub-functions, IT work can also be explored through approximately two hundred IT Concepts. These are more granular subject areas, such as Project Management, Access Management, Networking, Programming Languages, or Database Tools. Subject areas include topics from any part of IT, if they are related. 

In this Tech Guide, concepts are used as tags to group related topics into Topic Collections. Each individual topic usually includes four or five tags that represent different levels of focus, ranging from narrow to mid-range and broad.

For example, the topic “JavaScript” may be tagged under “Programming Languages” (narrow), “Browsers” (mid-range), “Front-End Technologies” (wide-angle), and “Web Technologies” (broad). 

This tagging method enables readers to explore IT concepts naturally, progressing from specific technologies to broader areas of understanding. 

The combination of Functions, Function Areas, and IT Concepts — where each Concept also serves as a tag that enables Topic Collections — creates a consistent framework for organizing all IT topics in the Tech Guide. It connects individual topics with the higher-level structure of IT organizations, making it easier for readers to navigate complex ideas.

This multi-level model demonstrates that IT is not random or fragmented but a coordinated system of roles, processes, and technologies that work together.

Readers can start from any point: a Function, a Function Area, or a Topic Collection. Each path leads to related areas of learning and provides context for how the pieces of IT fit together to deliver reliable, secure, and valuable digital solutions.

Understanding this structure provides business professionals with a clear picture of how IT operates. Instead of seeing technology as a mysterious collection of systems, this framework shows it as an organized, interconnected system of people and processes.

As a result, this Tech Guide for Business helps you “see the whole picture” of IT, one dimension at a time, and build a stronger foundation for understanding how digital work truly happens.

So, there you have it – a quick Intro to IT and this Tech Guide.

Next, check out the IT Management and related pages to learn more about each major IT Function!