OMG specifications
carry your real-time and/or embedded project through from analysis and design to development and
deployment. Our modeling specifications start with the Model-Driven Architecture
(MDA) with its basis on UML and the MOF and DRE-specialized UML profiles.
Middleware support comes from Real-time CORBA with your
choice of static or dynamic scheduling, and the
family of smaller-footprint profiles defined by
CORBA/e (CORBA for embedded). If you need publish-subscribe semantics,
still in real-time, choose the Data Distribution Service (DDS) instead of CORBA.
Lightweight versions of the CORBA Component Model and the most-used services -
naming, events, logging - round out the package.
OMG's Modeling Standards for Real-time
and Embedded Computing
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If you're
building a small application, modeling is
helpful, but if you're integrating a collection
of mission-critical real-time modules over a
network, it's essential. Working with
your model, you can visualize, compose, and
adjust your system at every level from the
small to the large. Then the MDA
standardizes the development path from your model to
your application, guaranteeing that the image
you execute at runtime is a faithful
rendition of the model you used for your analysis
and design. OMG's
modeling language standard is UML. Because
modeling is fundamental to Real-time and
Embedded computing, the road to OCRES
Certification starts with the OCUP
(OMG-Certified UML Professional) Fundamental
exam. If you're a systems architect or
designer, you'll have to create models; if
you're a developer, you'll have to read them
(or you may be a real-time specialist who
analyzes the models for schedulability).
Either way, you need to know UML.
Built around the Model-Driven Architecture (MDA), our Real-time and
Embedded-specific modeling standards enhance UML with two profiles that allow
schedulability analysis of the models as they pre-define
domain-specific constructs.
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UML Profiles tailor the modeling language to
a
domain. or for a special purpose. For Real-time
and Embedded computing, the special purpose
is
schedulability analysis, and the UML Profile
for Schedulability, Performance, and Time
was designed specifically to support this.
Build your model in this profile and you can
establish, before you write or generate your
application, that your design (and
its implementation!) will meet its
non-functional as well as its functional requirements. The second
Real-time and Embedded profile in this
category, for Quality of Service and Fault
Tolerance, supports a QoS model with quality
characteristics, and supports Fault
Tolerance with a Risk Assessment metamodel
and UML extensions that describe FT software
architectures.
OMG's
Middleware Standards for Real-time
and Embedded Computing
Real-time applications must
be predictable. Real-time CORBA
supports real-time requirements by
facilitating the end-to-end predictability
of activities in the system and by providing
support for the management of resources. It
includes support for both static and dynamic
scheduling, and a recent adaptation termed CORBA/e
(CORBA for embedded) defines a family of subsets
that fit on boards or chips.
Some applications or
execution environments call for data-centric
publish-subscribe semantics. For these
systems, OMG's relatively new but
extremely popular Data Distribution Service™ (DDS)
defines a standard middleware with real-time
response and the reliability required by
mission-critical military systems.
Lightweight versions of the CORBA
Component Model, the most-used services, a standard
Deployment and Configuration packaging standard, and
interfaces allowing CORBA systems to attach
Extensible Transports, round out the package.
For a list of the sections of each
specification included in each OCRES exam, plus
links for free downloads (except the textbook, of
course), see the complete
OCRES coverage map here.
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For more information or
questions about the OMG Certification Program, please contact certificationinfo@omg.org
OCUP, OCRES, OCEB
and OCSMP are joint programs of the OMG and the UML Technology Institute
(UTI)
 Last updated on
06/28/2012 |
