Step 5: Architecture & Technology
How will we build it?
Solution Architecture Document (SAD)
Structured template for architecture planning
Section 1
Business Context
Section 2
System Components
Section 3
Data Architecture
Section 4
Security & Compliance
Section 5
Operations & Support
Technology Stack
Selected technologies per use case
AI-Powered Customer Support Chatbot
Last reviewed: 2026-05-15
Approved
Cloud Provider
AWS
LLM Selection
GPT-4
Vector DB
Pinecone
LLM Gateway
LangChain
Automated Invoice Processing
Last reviewed: 2026-06-20
In Review
Cloud Provider
Azure
LLM Selection
Azure OpenAI
Vector DB
Azure Cognitive Search
LLM Gateway
Semantic Kernel
Security Controls
Required security measures
Data Privacy
Data encryption at rest
Data encryption in transit
PII masking
GDPR compliance
Access Control
Role-based access control
Multi-factor authentication
API key management
Audit logging
Model Security
Input validation
Output filtering
Rate limiting
Adversarial testing
Infrastructure
Network isolation
DDoS protection
Security monitoring
Incident response
Technology Selection Criteria
Key factors for technology decisions
Cloud Provider
- • Existing enterprise agreement
- • Regional data residency
- • AI/ML service maturity
- • Cost optimization
LLM Selection
- • Task-specific performance
- • Token cost vs accuracy
- • Data privacy requirements
- • API reliability & SLA
Vector Database
- • Query latency requirements
- • Scale & throughput needs
- • Integration complexity
- • Managed vs self-hosted