Standards2030

Technology Stack

Development Environment

• XAMPP - Local development server bundle (Apache, MySQL/MariaDB, PHP)
• MariaDB 10.4+ - Database (MySQL-compatible)
• PHP 8.2+ - Server-side scripting with PDO for database access

Frontend

• W3.CSS - Lightweight CSS framework for styling
• JavaScript (vanilla) - Client-side interactivity
• GoJS - Graph visualization library for prerequisite diagrams
• KaTeX - LaTeX math rendering
• Font Awesome - Icons

Architecture

MVC-lite pattern: Models handle all database access; page files mix controller logic with view rendering.

Directory Structure

kms-viewer/
├── app/
│   ├── Models/       # Data access layer (static classes)
│   ├── Views/        # Layouts, sidebars, partials
│   └── Helpers/      # Utility classes
├── atomic/           # Knowledge Base module (statements, actions, LGs)
├── syllabus/         # Course planning module
├── curriculum/       # Learning management (framework only)
├── assessment/       # Item database (framework only)
├── documents/        # Document generation, imported standards, alignment
├── about/            # About pages
├── utilities/        # Dev tools (bug reporter, etc.)
├── public/api/       # AJAX endpoints
├── config/           # Database configuration
├── db_files/         # Schema exports and backups
├── docs/             # Documentation
└── bootstrap.php     # Autoloader and session setup
  

Key Patterns

• Static Models - All Models use static methods (e.g., Statement::getById($id))
• Knowledge Base Scoping - Queries filter by $_SESSION['knowledge_base_id']
• Session-based Course Context - Syllabus operations use $_SESSION['selected_course_id']
• PSR-4-style Autoloading - Classes in App\ namespace map to app/ directory

Database

~30 tables organized around core entities:

• statements, actions, learning_goals - Atomic knowledge components
• statement_prerequisites, action_prerequisites - Prerequisite relationships
• courses and course_ tables - Syllabus/scheduling
• taxonomy, taxonomy_terms - Flexible categorization system
• knowledge_bases - Multi-tenant domain containers

Schema exports in db_files/structure/; full backups in db_files/full_backup/.

No Build System

Traditional PHP application with no compilation or bundling required. Edit files and refresh browser.

Style Note

The KMS places commas and periods, that are not part of a quotation, outside of the quotation marks.

Color Palette

Colors used throughout the application (all from W3.CSS):

Note: HTML color names shown are approximate equivalents. W3.CSS uses Material Design colors.