Plain, cited definitions

Tech certification & career glossary

The terms career-changers run into — certification levels, certificate vs certification vs badge vs degree, job-outlook projections, job zones — defined in plain language and backed by sources. 22 terms, each with its own cited page.

Credentials & certifications

Labor-market data

What O*NET is

The U.S. occupational database describing the tasks, skills, and preparation level of hundreds of occupations.

What a SOC code is

The Standard Occupational Classification code that lets roles map to official occupation data.

Tech concepts

What is DevOps?

Combining development and operations to deliver software faster — the AWS definition.

What is a SIEM?

The central tool a SOC uses to gather and analyze security data — the NIST definition.

What is an IT audit?

Reviewing IT systems and controls for integrity, security, and compliance — the ISACA framing.

What is cloud computing?

Computing delivered over the internet as an on-demand, shared pool of resources — the official NIST definition.

What is cybersecurity?

Protecting computers, networks, and data from damage and unauthorized access — the NIST definition.

What is virtualization?

Creating simulated computing environments from one physical machine — the Red Hat definition.

From a definition to a decision

Knowing the terms is step one. RoleMath turns them into a cited plan — the role, the certification, the real cost, and what it counts toward. It sells nothing and isn’t influenced by who pays us.