Gartner Research

Market Definitions and Methodology: IT Markets

Published: 13 May 2019

ID: G00364594

Analyst(s): Inna Agamirzian , Deborah Neitz Daily


The research methodology, segmentation, definitions and metrics used for forecast and market share statistics are detailed and updated in this report.

Table Of Contents

What You Need to Know


Notable Changes


  • Market Share and Market Sizing Methodology
  • Forecast Methodology
    • Forecast Methodology Overview
  • Business Value-Add Forecast Approach
  • How to Use Market Share and Forecast Statistics
  • Publications
    • Market Share Publications
    • Forecast Publications
    • Vendor Revenue Profiles


  • Exchange Rates
    • Current- and Constant-Dollar Reporting

High-Level Definitions and Segmentation

  • Enterprise IT Spending
  • Future Data Model Segmentation
  • Product/Service Category
  • Geography
  • Vertical Industry
    • Vertical Industry Market Segmentation
  • Size of Business

Frequently Asked Questions

Gartner Recommended Reading

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