Explanation/Reference:
A: The scope of ITSO is all of Oracle's product families. However, the Oracle technology real estate is extremely large and evolves as new products are introduced. Thus, the ITSO material will continue to grow as more ORA documents are created, additional ETSs are covered, and additional ESDs are created.
C, D: Technology perspectives extend the core material by adding the unique capabilities, components, standards, and approaches that a specific technology strategy offers.
SOA, BPM, EPM/BI, and EDA are examples of perspectives for ORA.
Each technology strategy presents unique requirements to architecture that includes specific capabilities, principles, components, technologies, standards, etc. Rather than create another reference architecture for each strategy, ORA was designed to be extensible to incorporate new computing strategies as they emerge in the industry.
In order to present the reference architecture in the most effective manner, each new technology strategy adds a perspective to ORA. This enables the reference architecture to evolve holistically. New computing strategies extend the core material, providing further insight and detail as needed.
A perspective extends the ORA core collateral by providing views, principles, patterns, and guidelines that are significant to that technology domain yet cohesive with the overall ORA. The perspective includes:
* A foundation document describing the terms, concepts, standards, principles, etc. that are important to the ETS.
* An infrastructure document that defines a reference architecture built using the technologies pertinent to the ETS.
An industry reference architecture is a set of high level architectural representations which characterize the current state architecture of an enterprise and a desired state, or architectural vision, based on the ORA.
Reference: IT Strategies from Oracle, An Overview, Release 3.0