A: Compress first. If you encrypt then your data turns into (essentially) a stream of random bits. Random bits are incompressable because compression looks for patterns in the data and a random stream, by definition, has no patterns.
These eight essential EA artifacts are principles, technology reference models, guidelines, business capability models, roadmaps, landscape diagrams, solution overviews and solution designs
How do you manage enterprise architecture in a fast-changing environment?
Enterprise architecture is a comprehensive, strategic discipline aimed to give structure to an enterprise, or organization. A good enterprise architecture creates a sustainable organization that is able to achieve its current business objectives.
As you can think of architecture being the blueprints, processes, and management of a building, so enterprise architecture accomplishes the same for an enterprise - it is the mechanism through which strategy is connected with execution. Or at least, that is what an effective EA practice can deliver; many organizations have not yet achieved such a large-scale function.
Ability to Measure is a power
https://training-course-material.com/training/SOA_Return_On_Investment_(ROI)
Benefits : Cutting costs,Increasing revenue,Increasing speed,Mitigating risks
Costs : Service Training, Service Support Consultants, Documentation and coordination, Performance tuning,Security,Physical infrastructure
Metrics
Service Re-usibility (Service Reused/Total Services)
Cost of reused development (Services which would be developed * costs)
Costs of integration