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An Actor models a type of role played by an entity that interacts with the subject (e.g.,
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by
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exchanging
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signals
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and
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data),
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but
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which
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is
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external
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to
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the
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subject.
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Actors
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may
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represent
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roles
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played
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by
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human
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users,
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external
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hardware,
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or
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other
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subjects.
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Note
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that
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an
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actor
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does
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not
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necessarily
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represent
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a
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specific
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physical
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entity
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but
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merely
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a
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particular
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facet
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(i.e.,
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"role")
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of
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some
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entity
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that
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is
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relevant
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to
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the
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specification
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of
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its
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associated
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use
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cases.
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Thus,
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a
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single
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physical
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instance
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may
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play
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the
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role
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of
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several
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different
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actors
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and,
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conversely,
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a
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given
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actor
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may
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be
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played
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by
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multiple
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different
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instances.
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While
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UML
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2
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does
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not
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permit
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associations
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between
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Actors,
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this
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constraint
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is
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often
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violated
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in
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practice
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since
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the
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generalization/specialization
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relationship
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between
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actors
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is
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useful
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in
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modeling
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overlapping
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behaviours
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between
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actors.
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The
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actors
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below
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are
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represented
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as
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having
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a
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hierarchical
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relationship
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for
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ease
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of
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understanding;
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however,
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these
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relationships
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can
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easily
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be
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removed.
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- Cancer
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- Researcher
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- :
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- plans
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- and
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- performs
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- activities
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- related
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- to
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- discovery
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- of
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- new
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- knowledge,
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- drugs,
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- and
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- treatments
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- in
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- the
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- field
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- of
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- oncology
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- Clinical
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- Researcher
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- :
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- works
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- directly
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- with
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- patients
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- and/or
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- patient
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- data
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- while
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- performing
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- cancer
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- research
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- Basic
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- Science
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- Researcher
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- :
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- works
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- with
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- scientifically
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- generated
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- data
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- while
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- performing
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- cancer
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- research
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- Protocol
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- Designer
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- :
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- defines
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- the
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- methods
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- used
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- to
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- perform
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- cancer
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- research
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- Information
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- Technologist
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- :
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- designs,
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- develops,
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- and
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- manages
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- the
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- software
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- and
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- hardware
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- necessary
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- to
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- perform
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- cancer
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- research
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- Business
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- Analyst:
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- analyzes
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- the
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- business
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- processes
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- and
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- describes
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- the
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- goals
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- and
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- activities
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- of
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- the
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- user
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- community
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- Information Modeler: designs, defines, and describes the data that will be captured during cancer research activities
- Software Engineer: implements the software systems that are used to manage and perform cancer research
- Systems Architect: designs the software and hardware systems that are used to manage and perform cancer research
- System Administrator: manages the software and hardware systems that are used to perform cancer research
- Metadata Specialist: having a deep understanding of semantics and syntactic, assists Cancer Researchers and Information Technologists on modeling and managing metadata
- Forms Author: constructs data collection forms based on a library of common data elements
- Metadata Curator: works hands-on with Cancer Researchers and Information Technologists to model and manage their metadata
- Metadata Systems Specialist: manages centralized metadata systems and assists with the design of metadata systems
- Terminologist: a metadata expert that manages and maintains the semantic concepts that underlie information models
- Compatibility Reviewer: while the nature of "caBIG Compatibility" may change as need dictates, the role of the Compatibility Reviewer will likely continue to be a Metadata Specialist that reviews a variety of documents/artifacts to determine the level of interoperability that a system meets
- Patient: any person who receives medical attention, care, or treatment
- Subject: a Patient that is participating in Cancer Research
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