From OpenBRR

The IDC taxonomy does a great job at categorizing software, but there are some very active categories around web applications and web tools that we feel are under-represented. Here's a proposition for an extended taxonomy. It may look like a lot of classes and sub-classes, but in our opinion a fine categorization is necessary to properly apply the BRR method

• Consumer Applications
  • Consumer Software

• Software Engineering Tools
  • Application Development Tools
    • Unified Development Environments
    • Third-Generation Language Tools
    • Software Construction Components
    • Analysis, Modeling, and Design Tools
    • Web Site Design/Development Tools
    • Code Generators
  • Compilers & Interpreters
    • Compilers and Cross Compilers
    • Debuggers and Profilers
    • Virtual Machines Frameworks
    • Interpreters
  • Version Control
  • L N Localization
  • QA & Application Life-Cycle Management
    • Automated Software Quality Tools
    • Software Configuration Management Tools
    • Quality Assurance
    • Testing

• Website Design & Tools
  • Website design
    • HTML Editors
    • Audio Effects
    • Visual Effects
      • Flash Development
    • Text Effects
    • Games
    • Style Sheet Editors
  • Website software tools
    • FTP Clients
    • Code Analyzers and Optimizers
    • Log Analyzers
    • Promotion Software
    • Crawlers
    • Parsers
      • HTML Parsers
      • XML Parsers

• Website & Communication Applications
  • Content Management
    • Content Management Server
    • Authoring Software
    • Translation/Globalization
  • Chat
  • Forums
  • Blogs
  • Portals
  • PHP Scripts
  • Wiki Engines
  • Search Engines
  • E-Commerce Software
  • Source & Site Protectors
  • Email, Messaging & Other Communications
    • Integrated Collaborative Environments
    • Messaging Applications
    • Standalone Email Applications
    • Instant Messaging Applications
    • Unified Messaging Applications
    • Other Messaging Applications
    • Conferencing Applications
    • Team Collaborative Applications
    • Other Collaborative Applications

• Database & Business Intelligence
  • Database & Related Tools
    • Relational Database Management Systems
    • Pre- and Postrelational DBMS
    • Object-Oriented DBMS
    • XML Database Management Systems
    • End-User DBMSs
    • Embedded Database Management Systems
    • Data Management Facilities
    • Data Movement and Replication Software
    • Data Connectivity Software
    • Metadata Definition and Management Software
  • Business Intelligence
    • Query, Reporting, and Analysis
    • Data Mining Software
    • Packaged Data Mart/Data Warehouse Products
    • Technical Data Analysis
    • Spatial Information Management Software
    • Enterprise Portals
    • Content Access Tools

• Application Servers & Other Middleware
  • Application Server Platforms
    • Application Server
    • Service Oriented Architecture and Web Services
      • Service Oriented Architecture
      • Web Services Architecture
      • Services-Oriented Management
    • Integration Software
      • Data Integration Software
      • Business Process Automation Deployment Software
      • Access, Platform, and Other Integration Software
  • Application Deployment Software
    • Integration Server Software Platforms
    • Message-Oriented Middleware
    • Transaction Server Middleware
    • Application Server Software Platforms
    • Web Server Software
    • Application Deployment Adapters/Connectors
  • Other Development Tools
    • Other Programmer Development Tools and Utilities

• Security
  • Identity and Access Management
  • Threat Management Software
  • Secure Content Management
  • Security and Vulnerability Management Software
  • Other Security Software
  • Adware & Spyware Removal
  • Antivirus
  • Firewalls
  • Online Privacy
  • Parental Filters
  • Pop-Up Blockers
  • Encryption
  • Biometrics

• Storage
  • Backup and Archive Software
    • Archive and HSM
    • Backup and Recovery
  • Storage Replication Software
  • Storage Resource Management Software
    • Capacity, Quota, and Resource Management
    • Device and SAN Management
    • Storage Policy and Automation Software
    • Virtualization and Volume Management
  • File System Software
  • Other Storage Software

• Networking
  • Enterprise Connectivity Software
  • Remote Control Software
  • Clustering, Distribution and Availability Software
  • Network Monitoring
  • Network Security
  • Remote Control Software

• System Administration and Other Utilities
  • Operating Systems and Subsystems
  • Cryptography Tools
  • Event Automation Tools
  • Job Scheduling Tools
  • Output Management Tools
  • Performance Management Software
  • Change and Configuration Management Software
  • Problem Management Software
  • Network and Service Management Software
  • Clustering and Availability Software
  • Emulators
    • Virtual User Interface Software
    • Virtual Machine Software
  • Other System Software
  • Software Configuration Management Tools
• Consumer Applications
  • Consumer Software

• Desktop Environment & Drivers
  • File Management
  • Desktop Environment Software
  • Window Managers
  • Drivers and Patches
  • Printing

• Enterprise Resource Management Applications
  • Financial Applications
    • Accounting
    • Treasury Management
    • Financial Analysis
  • Human Capital Management
    • eRecruiting
    • Incentive Management
    • HR Performance Management
    • Workforce Management
    • Payroll
  • Procurement
    • Order Management
  • Business Performance Management and Financial Analysis
  • Project Management
  • Enterprise Asset Management
  • Supply Chain Management Applications
    • Logistics
    • Production Planning
    • Inventory Management
  • Operations and Manufacturing Applications
    • Services Operations Management
    • Manufacturing
    • Other Back Office

• Customer Relationship Management Applications
  • Sales
  • Marketing
  • Customer Service
  • Contact Center

• Industry Specific
  • Banking
  • Engineering Applications
    • Mechanical Computer-Assisted Design
    • Mechanical Computer-Assisted Engineering
    • Mechanical Computer-Assisted Manufacturing
    • Product Information Management
    • Other Engineering
  • Insurance
  • Healthcare
  • Architecture/Engineering/Construction
  • Professional Services
  • Telecommunications/Utilities
  • Other Services Industries
  • Manufacturing
  • Retail
  • Wholesale Distribution

• Office & Business
  • Spreadsheet Applications
  • Scheduling Applications
  • Front-Ends
  • Office Suites
    • Office Add-Ins
  • Sales & Marketing Tools
  • Business Finance
  • Document Management
  • Legal
  • Personal Finance
  • Personal Info Managers
  • Presentation Tools
  • Project Management

• Multimedia & Graphics
  • Audio
    • Audio Files Editing
    • Audio Players
    • Audio Libraries Management
    • Video
    • Video Files Editing
    • Video Players
    • Video Codecs
  • Graphic
    • Image Editors
    • Image Viewers
    • Graphics Conversion
  • Modeling and Animation
    • 3D Modeling Software
    • 3D Animation Software
    • 3D Rendering

• Home, Games & Education
  • Teaching Tools
  • Documentation
  • E-Books
  • Home Automation
  • Games & Entertainment
    • Board Games
    • Card Games
    • Console-based Games
    • First Person Shooters
    • Multi-User Dungeons
    • Puzzle Games
    • Real Time Strategy
    • Role-Playing
    • Arcade Games
    • Simulation
    • Turn Based Strategy

• Emerging Categories of Software
  • Emerging Applications-Based
    • Data Warehousing Tools and Analytic Applications
    • Knowledge Management Software
    • Enterprise Resource Planning Applications
    • Supplier Relationship Management Applications
    • Product Life-Cycle Management Applications
  • Emerging System Infrastructure Software
    • PC and Device Management Software
      • IT Asset Management Software
      • Software Distribution
      • Settings and Configuration Management Software
      • PC Backup Software
    • Mobile and Device System Software
    • Mobile Security Software
    • Mobile Middleware and Infrastructure Software

For those interested, this tree can be extended and edited at www.iterating.com Any good feedback on the site will then be reported on this page.