High level overview of component technologies for fractionated satellites

2. Who we are
Remedy IT was founded in 1997
Focus on open standards and open source
Our customers are active in various domains such as telecom, finance,
aerospace and defense
We specialize in software for (embedded) distributed computing
environments often including real-time constraints
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3. What we do
Technical services/consultancy company dedicated to open standards and
preferable open source
Providing consultancy, support, and
training for various middleware products
Develop open standards as member of the
Object Management Group (OMG)
Provide five CORBA products for five different
programming environments (making us market leader
in CORBA products)
Only company worldwide providing a
LwCCM implementation that supports
DDS4CCM and AMI4CCM
Providing consultancy and services for DDS
as middleware technology
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4. OMG
Actively using and supporting CORBA from 2002
Platform member of the OMG (Object Management Group) since 2007
Active member of the OMG MARS (Middleware and Related Services)
workgroup for innovation of existing and development of new open
standards
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5. CORBA
Standard enabling software applications developed in multiple
programming languages and running on 1 or more systems to work
together
Applications define their services using IDL as platform independent
interface definition language
Well defined IDL definitions for its API
IDL translates to a programming language using a so called language
mapping
Multiple implementations (open source and commercial) exist for multiple
programming environments
Major driving force and supporter of the FOSS TAO (The ACE ORB)
CORBA implementation
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6. CCM
Involved in CCM (CORBA Component Model) development and support
from 2004
Major contributor and supporter of the FOSS CIAO (Component Integrated
ACE ORB) CCM implementation
CCM:C
omponent Model standard building on IDL and CORBA
Request-Response information exchange
Publish-Subscribe information exchange
Inherent support for Service oriented Architecture (SOA) and Component
Based Architecture (CBA)
LwCCM (Lightweight CCM) profile targeted
at embedded/constrained environments
Remedy IT initiated and created the
AMI4CCM (Asynchronous Messaging
Interface for CCM) OMG standard
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7. Deployment and Configuration
(D&C)
OMG standard focused on deployment and configuration of component
based applications
Can be used to deploy different kinds of applications developed in different
programming languages
Data model describes the application to be deployed
Well defined exhange format (IDL defined,
XML offline storage)
Automated deployment capabilities
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8. DDS4CCM
Data Distribution service (DDS):
Real-time middleware open (OMG) standard
Publish-Subscribe information exchange
Inherent support for data-oriented Event Driven Architecture (EDA)
DDS for Lightweight CCM (DDS4CCM):
CCM+DDS real-time component standard (OMG) contributed to by Remedy IT
Support for publish-subscribe information exchange
All components and interface ports are well defined and specified in OMG
Interface Definition Language (IDL)
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9. Use Cases
Traffic Control
AVE Verkehrs- und Informationstechnik GmbH makes
systems for monitoring and controlling the flow of traffic on
motorways and uses CORBA and the RTES
(Real Time Event Service)
Machine Control
Development of a platform to control a new generation of
chip production machines
Science
CORBA used in the heterogeneous setting of the control
system for CARMA, an array of radio telescopes in
southern California
Telecommunications
CORBA is used in Telecom Network Management (TNM)
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10. Use Cases
Defense
Ongoing Open Architecture (OA) project
This project has adopted the new OMG "DDS for Lightweight CCM"
(DDS4CCM) standard as the foundation real-time component framework
technology for its (Model driven) Scalable Node Architecture (SNA).
SNA is targeted at distributed, real-time, embedded (DRE) and high
performance computing (HPC) applications and subsystem/system
architectures.
The project uses CIAO for it's component framework.
The (co-)development of the AMI4CCM and DDS4CCM
standards by Remedy IT were a direct result of this
project.
Remedy IT also improved and extended CIAO for
usage in this project.
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11. Fractionated Spacecraft
In 2011 Remedy IT was asked to participate in the DARPA System F6 program (F6 is
short for Future, Fast, Flexible, Fractionated, Free-Flying Spacecraft united by
Information eXchange)
Remedy IT was asked by the ISIS (Institute for Software Integrated Systems) research group at
Vanderbilt University to assist in the development of a CCM-derived Component platform for F6
with support for CORBA and DDS.
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12. Future Fast, Flexible, Fractionated, Free-
Flying Spacecraft (F6)
Objective: Develop and demonstrate a satellite architecture where the
functionality of a traditional monolithic spacecraft is replaced by a cluster
of wirelessly connected modules
Advantages:
Increased flexibility during design and acquisition
Reduced development and launch costs
Increased adaptability and survivability of space systems on-orbit
Potential to apply economies of scale to satellite design & manufacture
Key program objective is to promote the usage of open interface
standards for hardware and software

13. F6 Program challenges
Distributed system with network addressability
Everything and anything can be accessed and addressed
Dynamism
Dynamically deployed applications, security configurations, and cluster
architectures
Resource sharing
Specific resources can be shared across applications: CPU, communication
links, memory, services
Fault tolerance
Faults in components, services, communication links, computing nodes are
detected, isolated, and their effects mitigated
Multi-level security
The architecture shall address the requirements of MLS

14. F6OS
The ‘Operating System’ that provides
Restricted OS calls for application actors
Privileged calls for platform (‘service’) actors
All system calls are time-bounded
Provides messaging services
All component interactions are via messages
No other interactions are possible
All component interactions are facilitated by a ‘secure transport’ that
verifies security labels on messages
Resource management functions
CPU time: temporal partitioning for actors, utilization cap per actor within
partition
Memory: space partitioning, limit caps
Network bandwidth: bandwidth budget, differentiated routing

15. Middleware
The ‘middleware layer’ provides
Synchronous and asynchronous point-to-point
communication with call/response semantics
(subset of CORBA)
● Location transparency
● Request (de)multiplexing
● Message (de)marshalling
● Error handling
● Support for QoS (client timeouts, reliable one-ways)
Anonymous publish/subscribe communications
with one/many-to-many data distribution patterns
(subset of DDS)
● Datatype specification
● Static discovery
● Reduced set of QoS: reliability, time-based filtering,
latency budget, etc.

16. F6 Component Model
The F6 Component Model is based upon existing Object Management
Group (OMG) standards
CORBA Component Model (CCM)
Data Distribution Service (DDS)
DDS4CCM
AMI4CCM
Deployment and Configuration (D&C)
By using formal standards components can be used on top of various
implementations
CORBA and DDS together deliver interoperability at the wire protocol
layer
F6 makes the mandatory CORBA part of CCM optional through the
connector concept
Delivers a true Interoperable Open Architecture solution

17. F6MDA (Model-driven Architecture)
Layered architecture supported by a model-driven development toolchain
Model-driven
Development
Software Platform
Deployment

18. Unified Component Model (UCM)
Based on previous experiences (especially the defence project's SNA
work and the F6 work) Remedy IT started an OMG initiative in 2012 to
come to a new component model standard: UCM
Currently initial proposals have been submitted
Involved domains are defence, robotics, aerospace
Intended to provide an evolution from the Lightweight CCM standard
Support for IDL defined data types and interfaces
No inherent CORBA dependency
Separation of business model and transport model using the CCM GIS
(Generic Interaction Support) connector concepts as used for AMI4CCM and
DDS4CCM (and IDL grammar GIS extensions)
The basic specification should define a simple, lightweight CIF (Component
Implementation Framework) container encapsulating a flexible event
queue/dispatch and threading model
Container extensibility through service components
Extension of basic specification through optional profiles (CORBA4UCM,
DDS4UCM, AMI4UCM etc.)
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19. C++11
Remedy IT started an OMG initiative in 2011 to come to a new IDL
language mapping standard for the new C++11 standard
simplified type system by reusing standardized C++11 types
simplified and more secure memory management by reusing C++11 standard
library shared pointer support (banned new & delete)
optimizations through using C++11 features like move semantics
API clean up
Version 1.0 of the OMG IDL C++11 Language Mapping was released in
february 2013
Remedy IT started the development of a CORBA ORB implementation
compliant with the new C++11 language mapping in parallel in 2011
resulting in the release of the first public version of the TAOX11 product in
October 2013
Currently Remedy IT is finishing their new LwCCM product based on the
C++11 language mapping (CIAOX11) which will become availble Q3 2014
this product also incoorporates many ideas being integrated into the UCM
standard
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20. More background information is online available at:
http://www.remedy.nl
http://www.theaceorb.nl
Remedy IT
PO Box 101
2650 AC Berkel en Rodenrijs
The Netherlands
tel.: +31(0)10 5220139
e-mail: info@remedy.nl
Twitter: @RemedyIT
Slideshare: RemedyIT
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