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Comment 05 on Section 5.2
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Section
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5
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>
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caGRID
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2.0
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Platform
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and
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Terminology
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Integration
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>
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Data
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Exploration
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and
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Query
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November
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22
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version
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It
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says
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that
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the
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query
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capability
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must
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support
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sophisticated
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queries
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such
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as
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temporal
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queries
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and
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spatial
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queries.
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In
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that
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case,
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decision
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support
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earlier
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should
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mention
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support
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for
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temporal
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and
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spatial
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reasoning.
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Resolution:
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This
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requirement
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is
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from
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the
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platform
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roadmap;
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the
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platform
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services
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provide
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access
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to
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data
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while
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the
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SI
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service
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provide
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access
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to
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metadata.
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The
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SI
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team
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is
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evaluating
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the
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requirement
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for
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this
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capability
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and
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will
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update
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the
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roadmap
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with
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its
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findings.
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Raghu
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Chintalapati
Comment 04 on Section 5.2
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Section
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5
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>
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caGRID
...
2.0
...
Platform
...
and
...
Terminology
...
Integration
...
>
...
Service
...
Discovery
...
November
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22
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version
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The
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terms
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orchestration,
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choreography,
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and
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composition
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seem
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to
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be
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used
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interchangeably.
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The
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dynamic
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composibility
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of
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services,
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including
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runtime
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contract
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discovery,
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is
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a
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hard
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if
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not
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unsolvable
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task.
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The
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paragraph
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would
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benefit
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from
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a
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more
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careful
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wording,
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e.g.,
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emphasizing
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design-time
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or
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semi-automatic
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composition,
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where
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specific
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services
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are
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discovered
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and
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composed
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to
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solve
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specific
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tasks.
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Note
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that
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in
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a
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composition
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of
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services,
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current
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state
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of
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the
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art
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abstracts
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services
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as
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one
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input/
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one
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output
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only.
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Additionally
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taking
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into
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account
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more
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complicated
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choreographies
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of
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2
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services
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interacting
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is
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not
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feasible.
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Resolution:
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The
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SI
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team
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is
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currently
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evaluating
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different
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approaches
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to
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identify
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the
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feasibility
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of
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automatic
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workflow
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composition.
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Based
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on
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the
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results
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of
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the
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prototyping
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phase,
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the
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roadmap
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will
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be
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updated.
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Raghu
...
Chintalapati
...
Comment
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03
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on
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Section
...
5.2
...
Section
...
5
...
>
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Service
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Discovery
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and
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Governance
...
November
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22
...
version
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It
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states
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"Service
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discovery
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and
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governance
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allows
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service
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developers
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to
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specify
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rich
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metadata
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about
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services".
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This
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should
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be
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the
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other
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way
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around:
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specify
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rich
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metadata
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about
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services
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allows
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service
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discovery?
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Resolution:
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Agree.
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That
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statement
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is
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revised
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in
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the
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roadmap.
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Raghu
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Chintalapati
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Comment
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02
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on
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Section
...
5.2
...
It
...
states
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"Service
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discovery
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and
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governance
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help
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to
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accomplish
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the
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following:"
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where
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the
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last
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bullet
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is
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"Enable
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better
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discovery".
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This
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is
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circular
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and
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similar
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to
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the
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above,
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it
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is
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the
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expressing
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of
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rich
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metadata
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that
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enables
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better
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discovery.
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Resolution:
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The
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scope
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of
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the
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section
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is
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to
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outline
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a
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set
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of
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SI
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capabilities,
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specifically
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the
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governance
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and
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service
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discovery
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capabilities.
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The
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bullet
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describes
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this
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capability,
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the
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coverage
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here
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is
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not
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around
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specifying
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rich
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metadata
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but
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leveraging
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existing
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metadata
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for
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better
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service
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discovery.
...
Raghu
...
Chintalapati
...
Comment
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01
...
on
...
Section
...
5.2
...
Section
...
5
...
>
...
Service
...
Discovery
...
and
...
Governance
...
>
...
Service
...
Discovery
...
Functions
...
November
...
22
...
version
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The
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discovery
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functions
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are
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rather
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implementation-level
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(involving
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service
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endpoints
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and
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service
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interfaces).
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What
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about
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the
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discovery
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of
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services
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based
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on
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a
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declaratively
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specified
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goal
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or
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task
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and
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the
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rich
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metadata
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of
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services
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using
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semantic
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reasoning?
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Resolution:
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This
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section
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lists
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some
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high-level
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requirements
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derived
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from
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the
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requirements
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section
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of
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the
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SI
...
roadmap.
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Service
...
discovery
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is
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expected
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to
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leverage
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semantic
...
reasoning,
...
the
...
SI
...
team
...
is
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doing
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some
...
prototyping
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to
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identify
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how
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semantic
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reasoning
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can
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be
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leveraged
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for
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service
...
discovery.
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This
...
section
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will
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be
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updated
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based
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on
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the
...
findings
...
of
...
that
...
exercise.
...
Raghu
...
Chintalapati
...
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