The internet is replete with articles that explain the differences.
So why am I writing this? For the purpose of “Collate > Create.”
One of the best articles I’ve read that explains this in detail is this one:
👉 Technical Architect vs Solution Architect vs Enterprise Architect – Diceus
In short:
Enterprise Architecture is more strategic, less technical
Solution Architecture is a balanced mix of strategy and technical detail
Technical Architecture is less strategic, more technical
That article also includes a table that summarizes the differences clearly, and it explains related concepts like Application Architecture and Domain Architecture as well.
I also love a good visual, so here’s one from LeanIX.
In this visual, the SDLC flows from left to right, moving from strategy to implementation.
As Enterprise Architects (EAs), we operate on the far left, working to shape the technology vision for strategic initiatives.
Funded initiatives then go to Solution Architects (SAs) to create the detailed blueprint that addresses the business problem.
Technical Architects (TAs) pick up the solution and create system-level designs for the systems they manage.
SAs and TAs could be the same person in some setups, or TAs might be Lead Engineers. It depends on how teams are structured within the company.
Personally, I think the line of demarcation is best drawn at:
EA + SA vs. Engineering (TAs, Developers).
Program Management works closely with EAs and SAs managing program roadmaps, while Project Management typically partners with Engineering driving projects to completion.