System Types

Complete list of standardized system type codes for EGI SKU generation.

Overview

System type codes identify the purpose and architecture of a system. Choose the code that best matches your system's primary function.

Core System Types

Backend Services

Code	Description	Examples	Typical Platforms
API	API service / microservice	FastAPI backend, Express API, Django REST, gRPC service	EKS, GKE, DK, LM
BOT	Chatbot / Automation agent	Discord bot, Slack bot, Queue worker, Cron jobs, Telegram bot	EKS, GKE, DK, LM

Notes:

• API: Use for any backend service exposing HTTP/RPC endpoints
• BOT: Includes both conversational bots and background automation workers

Frontend Applications

Code	Description	Examples	Typical Platforms
WA	Web Application (interactive web apps, portals)	React SPA, Next.js app, Vue app, Angular, Svelte	VE, CF, EKS, FH
MA	Mobile App (native or hybrid)	React Native app, Flutter app, Swift/Kotlin native, Expo app	EXP, CF, APP

Notes:

• WA: Use for user-facing web applications (SPAs, SSR, SSG)
• MA: SKU tracks the app binary/release, not backend services

AI & ML Systems

Code	Description	Examples	Typical Platforms
RAG	Retrieval-Augmented Generation (AI systems with retrieval)	LangChain RAG, LlamaIndex app, Pinecone integration, Semantic search	EKS, LM, EC2
AI	AI pipeline/agent (non-RAG)	TensorFlow Serving, PyTorch models, Hugging Face, OpenAI integration	EKS, LM, EC2

Notes:

• RAG: Specifically for RAG architectures, not general AI
• AI: Use for AI/ML services that aren't RAG-specific

Data Systems

Code	Description	Examples	Typical Platforms
DA	Data Analytics / Dashboard	Metabase, Superset, dbt models, Tableau integration	EKS, EC2, GKE
DB	Database system / data layer deliverable	PostgreSQL, MongoDB, Redis, Elasticsearch	AWS, GCP, AZR, DK
ETL	Data pipelines (extract/transform/load)	Airflow DAGs, dbt, Fivetran sync, Custom ETL	LM, EKS, GKE, EC2

Notes:

• DA: Use for analytics/BI tools and data visualization
• DB: Use for database instances or migration projects
• ETL: Any data pipeline or transformation workflow

Integration & Content

Code	Description	Examples	Typical Platforms
INT	Integration/Orchestration layer	Stripe integration, Salesforce sync, Zapier connector, Webhook processor	LM, EKS, CF
CMS	Content Management System	Strapi, Docusaurus, Sanity, WordPress	EKS, VE, FH

Notes:

• INT: Services that connect or orchestrate other systems
• CMS: Includes both traditional and headless CMS

Developer Tools

Code	Description	Examples	Typical Platforms
SDK	Client/developer SDK deliverable	Python package, npm library, Go module, REST client	PYPI, NPM, GH
CLI	Command-line tool	Deployment CLI, Admin CLI, Data migration tool	GH, PYPI, NPM
FX	Feature module/add-on shipped as a distinct unit	AWS Lambda function, Cloudflare Workers, Vercel Functions	LM, CF, VE

Notes:

• SDK: Distributed as packages, not deployed services
• CLI: Downloadable/installable CLI tools
• FX: Small, single-purpose functions or modules

Operations & Testing

Code	Description	Examples	Typical Platforms
OP	Operations Tool	Admin dashboard, Deployment tool, Monitoring agent, CLI tool	EKS, DK, EC2, OP
QA	QA/Test harness deliverable	Playwright tests, k6 load tests, Postman collections, Selenium	GHA, EKS, GKE

Notes:

• OP: Internal tools not exposed to end users
• QA: Testing infrastructure and automation

Selection Guide

I'm building a...

Backend API or microservice → Use API

• REST APIs, GraphQL APIs, gRPC services
• Microservices exposing HTTP endpoints

Background worker or bot → Use BOT

• Queue processors, cron jobs
• Discord/Slack bots, automation agents

Web application → Use WA

• React, Vue, Angular, Svelte apps
• Next.js, Remix, SvelteKit

Mobile app → Use MA

• React Native, Flutter
• Native iOS/Android apps

RAG system → Use RAG

• LangChain/LlamaIndex applications
• Vector search + LLM systems

AI/ML model or pipeline → Use AI

• Model serving, inference APIs
• Training pipelines

Analytics dashboard → Use DA

• BI tools, data visualization
• Analytics platforms

Database or data store → Use DB

• Database deployments
• Migration projects

Data pipeline → Use ETL

• Airflow, dbt, custom pipelines
• Data transformation workflows

Third-party integration → Use INT

• API integrations (Stripe, Salesforce)
• Webhook handlers

Documentation site or CMS → Use CMS

• Docusaurus, Strapi, WordPress
• Headless CMS

Python/JavaScript package → Use SDK

• Libraries for developers
• Client SDKs

Command-line tool → Use CLI

• CLI utilities
• Admin tools

Single-purpose function → Use FX

• Lambda functions
• Cloudflare Workers

Internal admin tool → Use OP

• Admin dashboards
• DevOps utilities

Test suite → Use QA

• E2E tests, load tests
• QA automation

Usage Examples

1.0.0.API.EKS.20250127     # API service on AWS EKS
2.5.1.BOT.GKE.20250115     # Bot worker on Google GKE
1.2.0.RAG.LM.20250201      # RAG service on AWS Lambda
3.0.0.WA.VE.20250110       # Web app on Vercel
1.0.0.MA.EXP.20250127      # Mobile app on Expo
1.5.0.DA.EKS.20250127      # Analytics dashboard on EKS
2.0.0.ETL.LM.20250127      # ETL pipeline on Lambda
1.0.0.SDK.PYPI.20250127    # Python SDK on PyPI
1.0.0.CLI.GH.20250127      # CLI tool on GitHub Releases
1.0.0.QA.GHA.20250127      # Test suite on GitHub Actions

Maintenance

System type codes are maintained in this SOP repository. To propose new codes, see Update Process.

See Also

• Platform Identifiers - Platform codes
• Naming Conventions - SKU format rules
• Examples - Real-world SKU examples