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Security Architecture>>

4. Technology Architecture

This is a definition for GC Technology Enterprise Architecture

Use Cloud first

• Adopt the Use of the GC Accelerators to ensure proper Security and Access Controls - Azure, AWS
  • These accelerators provide templates for deploying systems that have been review by ???
  • For the Azure Accelerators, both the ARM (Azure Resource Manager) and Terraform formats are provided
• Enforce this order of preference: Software as a Service (SaaS) first, then Platform as a Service (PaaS), and lastly Infrastructure as a Service (IaaS)
  • SaaS offers a managed service ...
  • PaaS offers ...
  • IaaS offers quick scalability compared to running your own servers, but leaves it up to you to patch an configure your infrastructure.
• Enforce this order of preference: Public cloud first, then Hybrid cloud, then Private cloud, and lastly non-cloud (on-premises) solutions
  • Public cloud provides ...
  • Hybrid cloud provides ...
  • Private cloud provides ...
  • On-Premises provides ...
• Design for cloud mobility and develop an exit strategy to avoid vendor lock-in
  • SaaS and PaaS remove the overhead of maintaining your own infrastructure, but can

Design for Performance, Availability, and Scalability

• Design for resiliency
  • Chaos Engineering
• Ensure response times meet user needs, and critical services are highly available
  • https://royal.pingdom.com/page-load-time-really-affect-bounce-rate/
• Support zero-downtime deployments for planned and unplanned maintenance
  • As your applications attract additional consumers, being able to introduce changes and patching without negotiating outages becomes more important
  • Green Blue deployment
• Use distributed architectures, assume failure will happen, handle errors gracefully, and monitor actively
  • Today much of the distributed architectures rely on the Kubernetes (k8s) architectures
  • https://opentracing.io/
• Establish architectures that supports new technology insertion with minimal disruption to existing programs and services
  • API Gateways???
  • General SOA???
• Control Technical Diversity - design systems based on technologies and platforms already in use.
  • Technical Debt
  • Best in breed vs. suite?