The evolution of M&S systems and NCW/NEC scenarios require more performance, in order to join more complex applications demanding more data at faster rates. These scenarios also demand more interconnection mechanisms, in order to interoperate legacy applications with new ones using the latest standards and communication systems.

1. www.nexteleng.es
Using Open software architectures for developing simulation
systems : a Way to the Interoperability of simulations at
subsystem level
Nextel Aerospace, Defence & Security
Ponente:
José Carlos Díaz
Business Development Executive
http://www.nexteleng.es/microsite/ncware
jcdiaz@nexteleng.es

2. www.nexteleng.es
From alone simulator … … To Simulation Networks
DATA
CENTRIC
 M&S assets in NCW
 Individual training  Tactical Training networks
 Propietary technologies  COTS based (mostly in  Fully distributed arch
 Client-Server Architecture hardware)  Data centric design
 Very few use of COTS  Client-Server architecture  Open architectures for
 Non Interoperable  Simulators as “black box” simulators (white-box
ystems. approach)
 Interoperability using
GATEWAYS (DIS or HLA)
M&S SENSORS C4I

3. www.nexteleng.es
The next future of simulation…
 Simulators as network assets in Net-Centric federations of Systems.
 Demand for rapid deployment of training solutions based on COTS and
GOTS.
 New uses for simulation:
 Embedded Simulation
 Mission rehearsals
 Predictions of Situational Awareness
….Demands for M&S technology
 Interoperate with NEC “clouds”
 Distributed architectures with QoS
 Plug&play simulation Architectures
 Development based on existing repositories
 Interoperability between live, virtual and constructive simulations

4. www.nexteleng.es
How is Nextel Engineering approaching simulation challenges
 Helping Simulator Builders & Integrators to satisfy Real-Time requisites
 Shortening its Time-To-Market with High Productivity Tools as well as
Automation
 Two-Level Offering
 Distributed Communications & Interoperability Middleware
 Full Development Lifecycle Tools

5. www.nexteleng.es
Is it HLA the best way to do distributed simulation in NCW Environments?
▪ HLA is used to create Simulation’s federations, in which each
federate is a complete simulator, who follows a “black-box
approach”. HLA is used to system level, not of its subsystems,
hence reusing of subsystems is very complicated.
▪ HLA has not standardized “wire protocol” for its network
transport, hence you can not integrate federates that use RTI’s
from different providers.
▪ Lack of QoS features and real time features blocks the use of
HLA as a way to distribute data in the internal real time network of
the simulator. Hence simulator data models are “black”, not
follows OPEN ARCHITECTURES.
▪ Interoperability with C4I or real systems is very limited.
HLA is necessary but not sufficient,
it is required some more technologies….

6. www.nexteleng.es
Open Architectures for Simulations, HLA + ??
▪ Looking for Distribute Data between simulator subsystems with QoS
and determinism  Real Time Simulation Middleware is needed
▪ Interoperation between Net-Centric systems and Simulators using
any standard interface  Open Architecture Middleware
▪ Reusability of models and subsistems for fast development of new
solutions  simulation models as simulation assets

7. www.nexteleng.es
What is it available for doing a RT Simulation Middleware?
 Two Pub/Sub based communications standards
available:
 IEEE HLA (High Level Architecture)
 developed and supported by US DMSO
 OMG DDS (Data Distribution Service)
 developed and supported by OMG
 HLA focused in interoperability and reusability of
simulations  mainly used to interoperate
networked simulators
 DDS focused on real time systems  mainly used
to interoperate distributed systems in real time, such
as components and modules of some simulators

8. www.nexteleng.es
The OMG DDS Standard in a nutshell…
 PubSub data distribution architecture to connect asynchronously and
anonymously very large sets of distributed nodes of a communications mesh
(domain participants)
 Every domain participant may simultaneously publish and subscribe to typed
data-streams identified by some names called “topics”
 Reliable design
 QoS parameters  variable degree of performance and reliability
 Standard “Wire protocol” (RTPS).
Reads
Temp Sensor
Temp
In DDS compliant distributed apps… In traditional complex distributed apps…
samples
Write
 Completely decentralizedApp SW
Temp  New nodes are not dynamically “discovered”
Linux
 High performance
samples
 Socket connections needed for each path
 True dynamic discovery
 Future upgrades require “re-design”
 Zero-copy App SW
Solaris  App SW must perform endian conversion
 Multicast address per topic concept
App SW
 No RTOS
shared memory or DDS service per node
App SW
 Applications use DDS as library
Windows

9. www.nexteleng.es
DDS vs others
Messaging Technologies and Standards
Web Services
Java RTSJ (soft RT) RTSJ (hard RT)
Java/RMI
Java/JMS
CORBA RT CORBA
Data Distribution Service / DDS
MPI
Non-real-time Soft real-time Hard real-time Extreme real-time
Adapted from NSWC-DD OA Documentation

10. www.nexteleng.es
Factors driving DDS
 Need for speed
 Large networks, multicast
 High data rates
 Natural asynchrony
 Tight latency requirements
 Continuously-refreshed data
 Complex data flows
 Controlled QoS: rates, reliability, bandwidth
 Per-node, or per-stream differences
 Varied transports (incl. Unreliable e.g. wireless)
 Dynamic configurations
 Fast location transparency
 Auto-Discovery
 Fault tolerance
 No single-points of failure
 Transparent failover

11. www.nexteleng.es
Joining HLA with DDS: bridging the gap
 HLA semantics define federations and federates
 Applications using DDS are Entities, and federations are Domains
 simulation = group of applications in either a domain or a federation
 The Domain/Federation concept allows having many simulations at the same
time without interfering with each other
 PROBLEM:
 HLA-RTI wasn't designed to reach high levels of performance (low
latencies & deterministic responses)
 HLA lacks a transport wire protocol
 Different HLA-RTI are fully incompatible  incompatibility between
some of the simulators  federations between different HLA-RTI are
difficult to implement
 SOLUTION: Using DDS as an underlying transport because its similar
structure (pubsub architectures)
 Interoperability between HLA apps and DDS entities
 Real-Time & QoS
 Interop Simplicity  Easy-to-Learn Interfaces

12. www.nexteleng.es
Nextel solution to fill the gap: NCWARE Product evaluated in
CWID 2009 Spanish
Edition
Participation in CWID
 Interoperability COTS middleware 2010 Spanish Edition
 Makes it easy to integrate NEC compliant C4ISR Systems with Simulators
 Open Architecture: DDS and HLA among its standards foundations
 Enables HLA routing
NCWare
Java
Message SOAP
Service

13. www.nexteleng.es
NCWare Philosophy
 NCWare is the dorsal spine of the NEXTEL Engineering Systems R&D Program
and challenges to join severalstandards to be used in both simulation and network
centric warfare systems, as an easy systems-of-systems approach
 Nextel Engineering is building up around NCWare a full interoperability
middleware for distributed systems with extensions specifically designed for
simulation systems
IP Combat
Non-IP Combat Network Radio C4I Node
SISTEMAS C2 C4I Node
SENSORES ISR SISTEMAS C2 SIMULADORES Network Radio DDS compliant SOA Services
JC3IEDM
TACTICOS ESTRATÉGICOS DISTRIBUIDOS Prop data
comms
C4I Node
protocols
VIDEO LEGACY SOA HLA Propietary Data
WEB Model
AUDIO DIS
HF IP Radio
JC3IEDM SERVICES
STANAG 5066 A JC3IEDM
Espacio
DATOS ? MESSAGE
QUEUING
LEGACY STANAG 5525
Distribuido de
m
Datos
DIS B C D
DDS RTP C4I Node
CORBA RTPC SQL DBMS XML ESB HLA 1.3 MMHS
XML ODBC HTTP JMS IEEE 1516 STANAG 4406-E OTROS CORBA
CODECS…
RPC DDS HLA Evolved
SOAP
ACP 142 G H
E
ACP 127
Simulators &
DATA DISTRIBUTION SERVICE (DDS) RPR FOM Trainers
F STANAG 4603
HLA Federates
IP NETWORK STANAG 4603
DIS XML
Civil Messaging TADILs
CAPA IP (PEC) Services Link 16
LAN RE/W SATCOM VHF IP (IPMUX, IPSAP) HF IP SMTP / X.400 Etc.
XMPP
VHF No-IP (CNR)

14. www.nexteleng.es
NCWare Inside Look
SENSORES ISR SISTEMAS C2 SISTEMAS C2 SIMULADORES
TACTICOS ESTRATÉGICOS DISTRIBUIDOS
VIDEO LEGACY SOA HLA
WEB
AUDIO JC3IEDM SERVICES DIS
DATOS ? MESSAGE
QUEUING
LEGACY
DDS RTP DIS
SQL DBMS XML ESB HLA 1.3
CORBA RTPC
XML ODBC HTTP JMS IEEE 1516
CODECS…
RPC DDS HLA Evolved
SOAP
DATA DISTRIBUTION SERVICE (DDS)
IP NETWORK
CAPA IP (PEC)
LAN RE/W SATCOM VHF IP (IPMUX, IPSAP) HF IP
VHF No-IP (CNR)
CONFIDENTIAL

15. www.nexteleng.es
NCWare Inside Look
SIMULADOR 2 SIMULADOR N
Simulation Simulation Federate
Module 1 Module 2 1
SIMULADOR 1
Federate Federate
2 3
NCWare SIM
NCWare NCWare RTI
NCWare Core NCWare Core
Gateway
DDS DDS DDS HLA HLA
HLA compliant Simulation
RT Simulation Network
Network
RT SERVICE BUS (MIDDLEWARE)
SQL
DDS DDS DDS WS / SOAP
ODBC
NCWare Core NCWare Core NCWare Gateway
Informatio
Information Information
Sensor APP NCWare SQL n
System 1 System i
System N
SENSORES SISTEMAS C4I SISTEMAS CIS

16. www.nexteleng.es
NCWare for Simulation
Simulation Simulation Federate Federate
Module 1 Module 2
NCWare Gateway 2 3
NCWare SIM NCWare SIM
NCWare Core DDS HLA HLA
HLA FEDERATION
MÄK
DDS SIMULATION
HLA
FEDERATION
PITCH
NCWare Core
NCWare RTI
Federate
Federate
1
4

17. www.nexteleng.es
NCWare Architecture Highlights for Simulation
NCWare is an N-tier architecture in order to cover three different scenarios:
 HLA-compliant federation of simulation systems, enabling the interoperability of
HLA federates, using different RTIs available in the M&S market, such as MÄK High
Performance RTI, Pitch pRTI y RTI NG Pro, among other RTI which implements
DMSO HLA 1.3 and/or IEEE 1516 API specifications
HLA or Visual RT Simulation
 Real time communications for simulation or Visual
distributed non HLA simulation application application
systems through its own DDS- NCWare SIM
based transport protocol
NCWare RTI
RTI RTI
NCWare SIM
 DDS-compliant, real time, fault NCWare Core
Mäk Pitch
NCWare Core
tolerant, physical layer
independent, peer-to-peer
COTS HLA RTI Distributed systems
communications for fully applications and embedded
distributed embedded systems applications
NCWare RTI
NCWare Core NCWare Core

18. www.nexteleng.es
NCWare SIM
 highest level abstraction layer of NCWare
 simulation-oriented publish-susbcribe API
 allows accessing to several HLA services
through different RTI vendors or DDS
HLA or Visual RT Simulation
 High performance, fine grained QoS simulation or Visual
application application
 independence from HLA and DDS NCWare SIM
NCWare RTI
RTI RTI
NCWare SIM
Mä Pitch
NCWare Core k
NCWare Core
 It allows the developer:
 interfacing the same way with any COTS HLA compliant RTI;
 accessing to high value features of QoS (persistence, ownership, filtering,
fault tolerance)
 Mapping HLA object data models into OMG DDS IDL
 Modeling simulation data into HLA and DSS 100% compliant formats,
within a Graphical User’s Interface.

19. www.nexteleng.es
NCWare RTI
 HLA Run Time Infrastucture designed for real time performance in large
federations
 IEEE 1516 HLA API for virtual and live simulations
 RTPS as transport protocol  functionality of an HLA RTI with the features,
performance, power and reliability of DDS
 Migrating to DDS Interoperability Transport Protocol
HLA or Visual
 Full HLA services support as simulation
application
required in virtual & live simulations
: NCWare SIM
NCWare RTI
 federation management RTI
Mäk
RTI
Pitch
NCWare Core
 declaration management
 object management COTS HLA RTI
applications
 ownership management NCWare RTI
NCWare Core

20. www.nexteleng.es
SimWare: Developing Tool for building M&S Assets Federation
Distributed Host
Simulink & Matlab
eHost Scheduler M&S Models IDE
SimDeveloper
Sim Sim Sim eHost
Model Model Model Manager
Reusable
New development
NCWare
Data Model Middleware NCWare (DDS + HLA compliant)
NCWare
NCWare NCWare
Virtual
IOS
SES
eVisual display
CIGI compliant IG

21. www.nexteleng.es
SimDeveloper: Model Driven Development of Simulation Assets
Application based on Matlab/Simulink to design simulation modules

22. www.nexteleng.es
NCWare+SimWare = Open Architecture solution
HLA compliant
simulator
Lamps Flight Simulator SM
SM
SM
IOS IG Cockpit SM
SM HLA Network
Real Time Simulation Middleware
SM DDS
IG Cockpit
SM Network
SM
SM
P3 Flight Simulator
DDS compliant
Naval Combat System

23. www.nexteleng.es
SimWare Workflow eLOGISTIC
eIOS
SIMDEVELOPER C++ Development
EjecucionEnPreinicio
EjecucionEnInicio
[PRE]
Pre_g
[INIT]
Init_g
[PRE]
Pre_f
[INIT]
Init_f
T_Pre
T_Init
environment
EjecucionEnEstabilizacion [TRIM] [TRIM]
T_Trim
1 FaseEjecucion Trim_g Trim_f
[PRE]
Fase EjecucionEnEjecucion [EXEC] [EXEC]
Pre_f1
OR [PREINIT]
T_Exec
Exec_g Exec_f
[INIT] Trim_g1
EjecucionEnParalizacion [STOP] [STOP]
T_Stop Init_f1
Stop_g Stop_f
Logical
EjecucionEnFinalizacion [END] [END] Operator1
T_End
Fase de Ejecucion End_g End_f
posicionPalancaPasoHelice
2 inicioEjercicioTierra
mdl_din_shel_discrepancias discrepancias
CIVectorEstadoAeronaveEnTierra
[PRE]
3
IOS
EstadoFallosSimuladosFallosSistHeliceGobernador fromEnPreinicio2 OR Preinicio
4
[INIT]
AerodinamicaVectorVelocidadAerodEjesCuerpoXvelocity mdl_din_shel_discrepancias.mdl1
5 fromEnInicio1
Logical
AerodinamicaVectorVelocidadAerodEjesCuerpoYvelocity Operator
6 posicionPalancaPasoHelice
pasoHelice
AerodinamicaVectorVelocidadAerodEjesCuerpoZvelocity
pasoHelice
7 revMotor
momHelicRespCgEjesCuerpo
CondAtmosferaEnPosicionAeronaveDensidad
falloGobernador
mdl_din_shel_gobernador revHelice 1
8
SistemaHeliceFuerzasHeliceCGEjesCuerpoComponenteX
MasasPosicionCGEjesAvionComponenteX
[PREINIT] Reset
revHelice 2
9
fromEnInicio2 vectorVelAeroEjesCuerpo SistemaHeliceFuerzasHeliceCGEjesCuerpoComponenteY
MasasPosicionCGEjesAvionComponenteY [STOP] Pausa
3
10 mdl_din_shel_aerohelice parNeces
fromEnParalizacion2 mdl_din_shel_gobernador.mdl SistemaHeliceFuerzasHeliceCGEjesCuerpoComponenteZ
MasasPosicionCGEjesAvionComponenteZ
densAtmPosAeronave 4
11
SistemaHeliceMomentosHeliceCGEjesCuerpoComponenteX
SistemaMotorRevoluciones
5
12
vectorPosicionCGEjesAvion SistemaHeliceMomentosHeliceCGEjesCuerpoComponenteY
MandosMotorControlesPosicionPalancaMezcla
T_MandosMotorControlesPosicionPalancaMezcla
6
13 0 traccionHeliEjesCuerpo
SistemaHeliceMomentosHeliceCGEjesCuerpoComponenteZ
MandosMotorControlesPosicionPalancaPasoHelice
posicionHeliceEjesAvionX posicionHeliceEjesAvion 7
14
MandosMotorControlesPosicionPalancaPotenciaMotor SistemaHeliceParRequerido
T_MandosMotorControlesPosicionPalancaPotenciaMotor 0
mdl_din_shel_aerohelice.mdl 8
posicionHeliceEjesAvionY SistemaHeliceRevoluciones
0
9
posicionHeliceEjesAvionZ Discrepancias
QTG Test
eHOST models
Glass Cockpit
Cockpit eCOCKPIT
Flight
Simulator
Simulation C++ Development
Models Environment
Flight Controls
CIGI compliant
eVISUAL Image Generator
DISTRIBUTED Visual System
ARCHITECTURE

24. www.nexteleng.es
SimWare Use Case (1)
IOS
ATC
Simulator
HLA
Glass Cockpit
Cockpit
Flight
Simulator
Simulation
Models
Flight Controls
SCALABLE Visual System
ARCHITECTURE

25. www.nexteleng.es
SimWare Use Case (2)
eIOS
SIMDEVELOPER C++ Development
EjecucionEnPreinicio
EjecucionEnInicio
[PRE]
Pre_g
[INIT]
Init_g
[PRE]
Pre_f
[INIT]
Init_f
T_Pre
T_Init
environment
EjecucionEnEstabilizacion [TRIM] [TRIM]
T_Trim
1 FaseEjecucion Trim_g Trim_f
[PRE]
Fase EjecucionEnEjecucion [EXEC] [EXEC]
Pre_f1
OR [PREINIT]
T_Exec
Exec_g Exec_f
[INIT] Trim_g1
EjecucionEnParalizacion [STOP] [STOP]
T_Stop Init_f1
Stop_g Stop_f
Logical
EjecucionEnFinalizacion [END] [END] Operator1
T_End
Fase de Ejecucion End_g End_f
posicionPalancaPasoHelice
2 inicioEjercicioTierra
mdl_din_shel_discrepancias discrepancias
CIVectorEstadoAeronaveEnTierra
[PRE]
3
IOS
EstadoFallosSimuladosFallosSistHeliceGobernador fromEnPreinicio2 OR Preinicio
4
[INIT]
AerodinamicaVectorVelocidadAerodEjesCuerpoXvelocity mdl_din_shel_discrepancias.mdl1
5 fromEnInicio1
Logical
AerodinamicaVectorVelocidadAerodEjesCuerpoYvelocity Operator
6 posicionPalancaPasoHelice
pasoHelice
AerodinamicaVectorVelocidadAerodEjesCuerpoZvelocity
pasoHelice
7 revMotor
momHelicRespCgEjesCuerpo
CondAtmosferaEnPosicionAeronaveDensidad
falloGobernador
mdl_din_shel_gobernador revHelice 1
8
SistemaHeliceFuerzasHeliceCGEjesCuerpoComponenteX
MasasPosicionCGEjesAvionComponenteX
[PREINIT] Reset
revHelice 2
9
fromEnInicio2 vectorVelAeroEjesCuerpo SistemaHeliceFuerzasHeliceCGEjesCuerpoComponenteY
MasasPosicionCGEjesAvionComponenteY [STOP] Pausa
3
10 mdl_din_shel_aerohelice parNeces
fromEnParalizacion2 mdl_din_shel_gobernador.mdl SistemaHeliceFuerzasHeliceCGEjesCuerpoComponenteZ
MasasPosicionCGEjesAvionComponenteZ
densAtmPosAeronave 4
11
SistemaHeliceMomentosHeliceCGEjesCuerpoComponenteX
SistemaMotorRevoluciones
5
12
vectorPosicionCGEjesAvion SistemaHeliceMomentosHeliceCGEjesCuerpoComponenteY
MandosMotorControlesPosicionPalancaMezcla
T_MandosMotorControlesPosicionPalancaMezcla
6
13 0 traccionHeliEjesCuerpo
SistemaHeliceMomentosHeliceCGEjesCuerpoComponenteZ
MandosMotorControlesPosicionPalancaPasoHelice
posicionHeliceEjesAvionX posicionHeliceEjesAvion 7
14
MandosMotorControlesPosicionPalancaPotenciaMotor SistemaHeliceParRequerido
T_MandosMotorControlesPosicionPalancaPotenciaMotor 0
mdl_din_shel_aerohelice.mdl 8
posicionHeliceEjesAvionY SistemaHeliceRevoluciones
0
9
posicionHeliceEjesAvionZ Discrepancias
eHOST
Glass Cockpit
Low Cost eCOCKPIT
Cockpit
Trainers
Simulation
Models
CIGI compliant
eVISUAL Image Generator
ARCHITECTURE Visual System
FOR REUSABILITY

26. www.nexteleng.es
SimWare Use Case (3) eLOGISTIC
eIOS
SIMDEVELOPER C++ Development
EjecucionEnPreinicio
EjecucionEnInicio
[PRE]
Pre_g
[INIT]
Init_g
[PRE]
Pre_f
[INIT]
Init_f
T_Pre
T_Init
environment
EjecucionEnEstabilizacion [TRIM] [TRIM]
T_Trim
1 FaseEjecucion Trim_g Trim_f
[PRE]
Fase EjecucionEnEjecucion [EXEC] [EXEC]
Pre_f1
OR [PREINIT]
T_Exec
Exec_g Exec_f
[INIT] Trim_g1
EjecucionEnParalizacion [STOP] [STOP]
T_Stop Init_f1
Stop_g Stop_f
Logical
EjecucionEnFinalizacion [END] [END] Operator1
T_End
Fase de Ejecucion End_g End_f
posicionPalancaPasoHelice
2 inicioEjercicioTierra
mdl_din_shel_discrepancias discrepancias
CIVectorEstadoAeronaveEnTierra
[PRE]
3
IOS
EstadoFallosSimuladosFallosSistHeliceGobernador fromEnPreinicio2 OR Preinicio
4
[INIT]
AerodinamicaVectorVelocidadAerodEjesCuerpoXvelocity mdl_din_shel_discrepancias.mdl1
5 fromEnInicio1
Logical
AerodinamicaVectorVelocidadAerodEjesCuerpoYvelocity Operator
6 posicionPalancaPasoHelice
pasoHelice
AerodinamicaVectorVelocidadAerodEjesCuerpoZvelocity
pasoHelice
7 revMotor
momHelicRespCgEjesCuerpo
CondAtmosferaEnPosicionAeronaveDensidad
falloGobernador
mdl_din_shel_gobernador revHelice 1
8
SistemaHeliceFuerzasHeliceCGEjesCuerpoComponenteX
MasasPosicionCGEjesAvionComponenteX
[PREINIT] Reset
revHelice 2
9
fromEnInicio2 vectorVelAeroEjesCuerpo SistemaHeliceFuerzasHeliceCGEjesCuerpoComponenteY
MasasPosicionCGEjesAvionComponenteY [STOP] Pausa
3
10 mdl_din_shel_aerohelice parNeces
fromEnParalizacion2 mdl_din_shel_gobernador.mdl SistemaHeliceFuerzasHeliceCGEjesCuerpoComponenteZ
MasasPosicionCGEjesAvionComponenteZ
densAtmPosAeronave 4
11
SistemaHeliceMomentosHeliceCGEjesCuerpoComponenteX
SistemaMotorRevoluciones
5
12
vectorPosicionCGEjesAvion SistemaHeliceMomentosHeliceCGEjesCuerpoComponenteY
MandosMotorControlesPosicionPalancaMezcla
T_MandosMotorControlesPosicionPalancaMezcla
6
13 0 traccionHeliEjesCuerpo
SistemaHeliceMomentosHeliceCGEjesCuerpoComponenteZ
MandosMotorControlesPosicionPalancaPasoHelice
posicionHeliceEjesAvionX posicionHeliceEjesAvion 7
14
MandosMotorControlesPosicionPalancaPotenciaMotor SistemaHeliceParRequerido
T_MandosMotorControlesPosicionPalancaPotenciaMotor 0
mdl_din_shel_aerohelice.mdl 8
posicionHeliceEjesAvionY SistemaHeliceRevoluciones
0
9
posicionHeliceEjesAvionZ Discrepancias
QTG Test
eHOST models
Glass Cockpit
cockpit eCOCKPIT
Flight
Simulator
Simulation C++ Development
Models environment
Flight Controls
CIGI compliant
eVISUAL Image Generator
INTEGRATION & Visual system
TESTING

27. www.nexteleng.es
Open Architecture
Interoperability
Real systems & Simulators Blend
DDS
QoS
Full lifecycle COTS HLA
Real-Time
development
tools Automation
High Level Design

28. www.nexteleng.es
MUCHAS GRACIAS
POR SU ATENCIÓN
Ponentes:
José Carlos Díaz
Business Development Executive
NEXTEL ENGINEERING
jcdiaz@nexteleng.es
http://www.nexteleng.es