You begin describing the new technical architecture in Phase A: Architecture and Vision. You record information about the architecture in a Technical Architecture definition, and then develop the definition through successive phases.
Target architecture constraints and principles
Technical constraints
Specify one or more Business Constraints, which are technical constraints affecting this architecture development.
View imposed constraints
Specify one or more Business Constraints, which are constraints imposed by a view on this architecture development.
Current principles
Specify one or more Principle that are embodied in the current system.
New principles
Specify one or more new governing principles.
Technical architecture model and ABB specifications
ABB models of views
Specify the Technical Architecture Diagrams that provide Architecture Building Block (ABB) model views.
ABB models of services
Specify the Technical Architecture Diagrams that provide ABB service model views.
List of abbs
Specify the Architecture Building Blocks.
Standards summary list
Specify the standards underpinning architecture development.
Requirements traceability
Acceptance criteria
Specify the acceptance criteria for technical architecture.
Selection criteria (specs)
Specify the selection criteria for technical architecture.
Selection criteria (portfolios)
Specify the portfolio selection criteria for technical architecture.
Test criteria (architecture)
Specify the test criteria for technical architecture.
Responses to test criteria
Textually provide the answers to key questions and test criteria on the merits of the architecture.
Cost/Benefit analysis
Textually report on the cost/benefit analysis.
Architecture report
Textually describe how the proposed architecture meets business goals/objectives.
Gap report and change requests
Gap analysis
Describe the results of gap analysis.
Gap matrix
Describe the results of the gap analysis matrix.
Change requests
Specify the change requests arising from architecture mapping.