LinkedIn: What is the difference between Enterprise Architecture, Business Architecture and the various other "X Architecture" names, interpretations

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What is the difference between Enterprise Architecture, Business Architecture and the various other "X Architecture" names, interpretations and approaches?
Q1
Is there a difference or is it just semantics, causing confusion because of different naming conventions and promotion of individual view?

I have personally used "Business Ecosystem Architecture" and "Symbiotic Architecture" to define through naming a difference in my own approach, always with a very heavy emphasis on it being a business (executive) driven requirement.

Following the above...
Q2
Should Business Architecture refer to:
- Business strategy dimension for EA
- Business processes that aligns with EA (TOGAF)
- Integrated operational ecosystem model
- Whole-of-Enterprise
- Symbiotic relationship design
- Your suggestion here…

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From my definitions...

enterprise architecture, noun
coherent and proven set of principles, recommendations, rules, practices, and tools which provides guidance and practical help for the design and evolution of IT and business to achieve enterprise vision and strategy

Remark 1: Examples of business vision and strategy are a higher level of maturity, a greater agility, better collaboration, merging, cost cutting, modernisation of legacy applications, outsourcing of a business unit, etc.

Remark 2: Some parts of enterprise architecture are dedicated to different stakeholders.

Remark 3: To guarantee the desired outcome, enterprise architecture needs to be as good as applied science.

enterprise business system, noun

top level view of an enterprise as a system for conducting the business

Remark 1: This top level view may concentrate on how the business is structured, what it does and what it needs to do to meet its goals.

Remark 2: The issues of greatest importance for enterprise business systems are the following:
• the core end-to-end business processes (also known as value streams);
• the governance structures;
• the core business information (semantics);
• the communication with the core business partners.

business architecture, noun
that part of enterprise architecture concentrating on the conceptualisation and evolution of the form and structure of the enterprise business system


Thanks,
AS