GC Enterprise Architecture/Standards/Technology Architecture

GC Enterprise Architecture	GC Enterprise Architecture Review Board, GC EARB
GC Service & Digital Target Enterprise Architecture	When to come
Enterprise Architecture Framework	Forward Agenda
Business Capability Model (BCM)	Past Sessions
Exemplar and Reference Architectures	10 Things You Need to Know
Enterprise Solutions	Governance for Digital Solutions
Working Groups	EA and GC EARB Overview – Presentation
Other References

<<Application Architecture

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?

Need help? Contact us. EA.AE@tbs-sct.gc.ca Enterprise Architecture Community of Practice GC Enterprise Architecture Review Board