What Is Technical Architecture? Core Components and Design Principles Explained
This article explains the definition of technical architecture, outlines its core components such as technical services, components, infrastructure and selection, and illustrates how it supports business, application, and data architectures through layered system diagrams and practical examples.
Origin
Business architecture defines the enterprise‑level blueprint, while technical architecture defines how the system implements and supports the business architecture.
What is the definition of technical architecture?
Technical architecture describes the logical software and hardware capabilities required to support business, data, and application services, including IT infrastructure, middleware, network, communication, processes, standards, etc. Its main goal is to design a target technical architecture based on the current AS‑IS architecture, technical standards, and business/application/data requirements, producing a platform decomposition diagram and a technology lineage catalog.
What does technical architecture include?
Technical architecture mainly includes technical services, technical components, technical selection, and infrastructure.
1. Technical Services
Abstract underlying technical capabilities—components, infrastructure, etc.—into services that expose interfaces for external use, such as storage, message push, etc.
2. Technical Components
Fundamental building blocks at the technical layer, such as base libraries, utility classes, frameworks, middleware, etc.
3. Infrastructure
The underlying runtime environment that supports the system, e.g., servers (CPU, memory, storage), network, storage, and other infrastructure.
4. Technical Selection
Technology decisions made by evaluating and balancing requirements, business, cost, stakeholders, team, etc., such as choices of infrastructure, middleware, open‑source frameworks, etc.
Technical Architecture Overview: System Layers and Technology Choices
Afterword
Technical architecture implements and supports business, application, and data architectures. Together, application architecture, data architecture, and technical architecture form the IT system architecture blueprint.
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