# SIGMA Career Explorer > A free career assessment with AI Change Signals for every match and Jackson — an assistant embedded in your results dashboard. ## What this tool is SIGMA Career Explorer is a self-guided career assessment built by SIGMA Assessment Systems. It combines an interest and work style assessment with Jackson — an assistant embedded in your results dashboard — and a career matching engine that draws on 923 O*NET occupations. The tool is completely free. No account or registration is required. Users receive a unique re-entry code so they can return to their results at any time. ## Who this is for - Students exploring career options for the first time - Professionals considering a career change or pivot - Adults navigating late-career transitions or planning for the future - Anyone wondering how their interests and work style translate into real-world careers ## How it works 1. Complete a career interest assessment (84 items across 28 career interest scales) 2. Complete a work style assessment (21 items across 7 work style scales) 3. Reflect on your career stage, goals, and experiences through open-ended prompts 4. Receive an AI-generated personalized debrief: thematic insights, three career pathways (traditional, pivot, emerging), and reflective questions 5. Explore your top career matches from a database of 923 O*NET occupations, ranked by similarity to your interest profile 6. For each career match, see an AI Change Signal — a unique indicator of how much AI automation may affect that role, with specific drivers and protective factors explained 7. Use Jackson — an assistant embedded in your results dashboard who knows your full results and can help you make sense of what you're looking at ## Key differentiators - **AI Change Signals**: No other free career tool shows you how AI automation is expected to impact each of your matched careers. Every match includes a 5-level change intensity band (Very Low to Very High), specific AI risk drivers, and protective factors that explain the signal. - **Free, no login**: Start immediately with no account required. A re-entry code lets you return to your results anytime. - **Grounded in O*NET**: Career matches draw from the U.S. Department of Labor's O*NET database of 923 occupations, not a proprietary or limited list. - **Jackson in your dashboard**: Unlike static results pages, Jackson is embedded directly in your results. Most assessments just throw data at you — Jackson is there to help you make sense of yours. - **SIGMA instruments**: Built on SIGMA's published interest and work style measures covering 28 career interest scales and 7 work style scales. ## Key terms - **Career interest assessment**: Measures how much you enjoy different types of work across 28 scales (e.g., Technology, Creative Arts, Business, Social Service, Science, Leadership) - **Work style assessment**: Measures how you prefer to work across 7 dimensions (e.g., Independence, Stamina, Accountability, Planfulness) - **RIASEC / Holland codes**: An industry-standard framework (Realistic, Investigative, Artistic, Social, Enterprising, Conventional) used to match people to occupations. The tool maps your scores to this framework for career matching. - **AI Change Signal**: A composite score and band indicating how much AI automation may transform a given occupation, based on 7 factors including routine information processing and human relational complexity. - **Jackson**: An assistant embedded in the results dashboard. Jackson knows your full results and can answer questions, explore specific careers, and help you think through what the findings mean — solving the problem of assessments that just throw data at you. - **Re-entry code**: An 8-character code generated at the start of every session. Save it to return to your results anytime without creating an account. ## URLs - https://sigmacareerexplorer.com — Home / take the free assessment - https://sigmacareerexplorer.com/about — About the tool - https://sigmacareerexplorer.com/scales — Plain-language glossary of all 28 work interest and 7 work style scales used in the assessment ## Provider SIGMA Assessment Systems — https://www.sigmaassessmentsystems.com