© 2017 Aras aras.com© 2017 Aras
Why Connected Products
Require a Digital Twin & Digital Thread
Marc Lind | Aras
aras.com
aras.com
source: stratasys source: spacex
Industries Changing & Being Disrupted Rapidly
Materials Advancements &
Additive Manufacturing
Connected & Autonomous
Data Collection &
Handling
© 2017 Aras
aras.com
Smart Connected Future = Even More Changes
New Technologies + Next Gen Products + New Business Models
More Systems-of-Systems & Machine-to-Machine
Introduction of Artificial Intelligence / Machine Learning
© 2017 Aras
aras.com© 2017 Aras
Data Streaming from Factory & Field
aras.com
Efficiency Improvements
Performance Optimization
Predictive Maintenance
© 2017 Aras
aras.com
Datacenter & Cloud
Many Initiatives Focused on Infrastructure
Sensors
Analytics
source: goodrich
© 2017 Aras
© 2017 Aras aras.com
Time Series Data
Analyze, Interpret, Act
aras.com
source: airbus
(Some) TIME SERIES DATA
Airspeed
Altitude
Barometric Pressure (electronic/aneroid)
Outside Air Temperature (C/F)
Fuel pressure (x number of engines)
Fuel flow (x number of engines)
Cabin air pressure (psi/hg)
Cargo air pressure; doors, bulkheads
Cabin temperature; doors, bulkhead
Cargo temperature
Fuel temperature; fuel tanks, fuel pumps
Radar air traffic – TCAS
Hydraulic Pressure; brakes, flaps, spoilers, rudder, aileron, landing gear pumps
Weight sensors - landing gear
Turbines; RPM (N1/N2), Inlet- turbine pressure, Temperature, fuel burn
Voltmeter; cockpit, main bus, cabin, auxillary power, cargo, engines, APU
Generator meters (engines, APU)
Electricity Load (amp/hr); flight deck, cabin, cargo
Fire sensors; cabin, cargo, engines, fuel, brakes, electronics bay
Carbon Dioxide; cabin, cargo
Magnetic Compass
GPS (satellite / terrestrial)
Radio Compass (NDB)
Doppler radar; weather, lightning, downdraft (microburst)
ANALYSIS
CONTEXT?
Increasing Context Problem
CONTEXT
Digital Twin
configuration
Digital Thread
traceability
+
© 2017 Aras
© 2017 Aras aras.com
Stefane Gardmann
https://pro.europeana.eu/files/Europeana_Professional/Publications/Europeana%20White%20Paper%201.pdf
Digital Twin
Digital Thread
Knowledge = Information in Context
aras.com
Ramifications
Misdirected Actions
Misinterpretations
Inaccurate Conclusions
Future Without Digital Twin + Digital Thread Context
Risks
Unnecessary Rework / Repairs
Lost Revenues
Customer Frustration
Operational Shutdowns
Regulatory Actions
Brand Damage
Liability
Loss of Life
Safety Issues
COMPLEXITY
© 2017 Aras
Risks increase exponentially with artificial intelligence
aras.com
What is the Digital Twin Configuration?
Just Mechanical?
As-Designed?
General representation of
a family of products?
© 2017 Aras
aras.com
Digital Twin Configuration
Software
Electronics
Mechanical
Electrical
Tail Number /
Serialized Instance
######
source: airbus
exact digital representation of the physical thing right now
© 2017 Aras
aras.com© 2017 Aras
AS SERVICED
C
D
H
K
L
G
T
F SN #97
O SN #44
R
S
A SN #6
Q SN #71
J
AS DELIVERED
C
D
H
K
L
G
T
F SN #89
O SN #44
R
S
A SN #6
Q SN #71
J
AS BUILT
C
D
I
K
L
G
T
F SN #89
O SN #44
R
S
A SN #6
Q SN #53
J
AS PLANNED
A
P1
C
F
D
P2
J
K
O
L
G
T
Q
R
S
H / I
AS ORDERED
B
C
F
D
G
J
K
O
L
Q
R
S
A
H / I
AS DESIGNED
B
C
D
G
K
O
J
Q
R
S
A
E ? F
H / I
L ? M
LOGICAL
L2
L7
L3
L8
L5
L4
L9
L10
L11
L1
FUNCTIONAL
F2
F8
F6
F4
F11
F10
F12
F9
F5
F7
F3
F13
F15
F14
F16
F1
REQUIRED
R2
R7
R3
R8
R5
R6
R4
R9
R10
R11
R14
R13
R1
R12
Concept Design Development Launch Manufacture Service
L6
DIGITALTWIN
Digital Twin Over Lifecycle
aras.com© 2017 Aras
AS SERVICED
C
D
H
K
L
G
T
F SN #97
O SN #44
R
S
A SN #6
Q SN #71
J
AS DELIVERED
C
D
H
K
L
G
T
F SN #89
O SN #44
R
S
A SN #6
Q SN #71
J
AS BUILT
C
D
I
K
L
G
T
F SN #89
O SN #44
R
S
A SN #6
Q SN #53
J
AS PLANNED
A
P1
C
F
D
P2
J
K
O
L
G
T
Q
R
S
H / I
AS ORDERED
B
C
F
D
G
J
K
O
L
Q
R
S
A
H / I
AS DESIGNED
B
C
D
G
K
O
J
Q
R
S
A
E ? F
H / I
L ? M
LOGICAL
L2
L7
L3
L8
L5
L4
L9
L10
L11
L1
FUNCTIONAL
F2
F8
F6
F4
F11
F10
F12
F9
F5
F7
F3
F13
F15
F14
F16
F1
REQUIRED
R2
R7
R3
R8
R5
R6
R4
R9
R10
R11
R14
R13
R1
R12
Concept Design Development Launch Manufacture Service
L6
Digital Thread Lifecycle Traceability
DIGITALTWIN
aras.com
What is the Digital Thread?
© 2017 Aras
Relationship Connections
Meaningful relationship connections between all of a product’s digital assets
– and their revisions over the lifecycle – including (but not limited to)
versions of BOMs, parts, software, electronics, CAD models, documents,
requirements, process plans, service manuals, etc
aras.com© 2017 Aras
Digital Thread = Meaningful Relationships
Context
?Bill of Materials?
FFF Alternates?
Other?
Dependency
Rev A
Part 123
Rev A
Part 987
Rev B
Part 987
Rev C
Part 987
Floating
Relationship
Part 123
Rev A
Rev A
Part 987
Rev B
Part 987
Rev C
Part 987
Fixed
Relationship
aras.com© 2017 Aras
Thousands of Existing Systems & Petabytes of Data
Users around the World
source: boeing
Are Digital Twin & Thread Achievable?
© 2017 Aras aras.com
MBSE
Simulation
ALM
ECAD
PDM
MCAD
PDM
ERP
Maint. Mgt.
IOT
Concept Development Manufacturing Service
Platform Applications
Platform Services
MES
Platform Overlay Approach
© 2017 Aras aras.com
Dr. Martin Eigner
19
System-of-Systems Architecture
also called Platform for the PLM Backbone
Not just Links, but
Relationships
Avoids Risk &
Disruption
Move Agile, Fast,
Bi-modal IT
© 2017 Aras aras.com20
Authoring-
Systems
TDM/PDM-
Systems
PLM
Backbone
PPS-
Systems
Project
Management
Systems
Engineering
Software
Engineering
Virt. & Phys.
Validation
Mechanical
Engineering
IOT
Content
Server
E/E
Engineering
Industrial
Engineering
Sales/
Service
SAP
Requirement &
Test Engineer.
Business Logic & Integration
Graphical User Interface (role based Apps)
Service
Request
Management
Reporting
PLMCockpit
Search and
Browse
DigitalPlatform(IBM)
EPLAN
Altium
Mentor
Creo
Delmia
ProcessEng.V6
Plan
Simulation
EnterpriseArchitect
IntegrityModeler
Rhapsody
IntegrityLifecycleMger
Doors+RQM+Change
ReqMan
Planisware
PSR
(ProjectStatusReporting)
MSProject
IntegrityLifecycleMger
SynergyandChangeSuite
Others
Salesforce/Medias
Maßblatt
SVN
SAP
Creo
Configurator
WT
TLDB,others
SAP
…
Matlab,
Bearinx,
Famos,
Abaqus…
Hypertest
ERS
Enovia
SAP
?
Workflow Engine
Application Integration
(Webservice, REST, OSLC, …)
Federated Repository
(Data Backbone)
Change
Management
Configuration
Management
Example Architecture
Aras Platform at Schaeffler for 20,000 Users
Platform Applications
Platform Services
aras.com© 2017 Aras
Platform Requirements for Digital Twin & Thread
Ability to ingest data
through
API and Services
Integration
ability to manipulate processes and
data through exposed API / Services
Extensibility
ability to build / extend functionality
leveraging COTS framework
Ability to exfiltrate data
out of API / Services
MUST HAVE
Transparent & Interrogatable APIs
FULL API Capabilities Exposed
Open Data Model
Dynamic Data Model
Open Data Access
CANNOT HAVE
Proprietary APIs
Incomplete or Hidden API Function Calls
Proprietary Data Models
Static / Hard Coded Data Model
Obfuscated Data
aras.com
Data Model Requirements for Digital Twin Configuration
© 2017 Aras
Digital Twin
Model
Metadata
(Persistent & Derived)
CUSTOMER DEMANDS
CUSTOMER 1
C
D
H
K
L
G
T
F SN #97
O SN #44
R
S
A SN #6
Q SN #71
J
CUSTOMER 2
D
K
L
T
F SN #97
R
S
A SN #6
Q SN #71
J
CUSTOMER 3
D
L
T
R
A
Q
J
CUSTOMER 4
D
L
T
R
A
J
BUSINESS MODEL
IN-PRODUCT
CAPABILITY PURCHASE
C
D
H
K
L
G
T
F SN #97
O SN #44
R
S
A SN #6
Q SN #71
J
POWER BY THE HOUR
K
L
T
F SN #97
A SN #6
Q SN #71
J
PAAS
(PRODUCT AS A SERVICE)
D
L
T
R
A
Q
J
USAGE-BASED BILLING
C
K
D
L
A
T
G
C
SN #71
S
R
S
SUPPLY CHAIN PERSPECTIVE
OEM
C
D
H
K
L
G
T
F SN #97
O SN #44
R
S
A SN #6
Q SN #71
J
OWNER OPERATOR
D
T
F SN #97
R
S
A SN #6
Q SN #71
J
TIER SUPPLIER
A
K
L
J
TARGET SCENARIO
PREDICTIVE
MAINTENANCE
C
D
H
K
L
G
T
F SN #97
O SN #44
R
S
A SN #6
Q SN #71
J
PERFORMANCE
OPTIMIZATION
D
K
L
T
F SN #97
R
S
A SN #6
Q SN #71
J
OVER-THE-AIR
SOFTWARE UPDATES
L
T
R
A
Q
J
REMOTE
OPERATION
C
K
T
L
A
J
aras.com
Data Model Requirements for Digital Twin Configuration
© 2017 Aras
Digital Twin
Model
Metadata
(Persistent & Derived)
CUSTOMER DEMANDS
BUSINESS MODEL
SUPPLY CHAIN PERSPECTIVE
TARGET SCENARIO
CUSTOMER 1
C
D
H
K
L
G
T
F SN #97
O SN #44
R
S
A SN #6
Q SN #71
J
CUSTOMER 2
D
K
L
T
F SN #97
R
S
A SN #6
Q SN #71
J
CUSTOMER 3
D
L
T
R
A
Q
J
CUSTOMER 4
D
L
T
R
A
J
IN-PRODUCT
CAPABILITY PURCHASE
C
D
H
K
L
G
T
F SN #97
O SN #44
R
S
A SN #6
Q SN #71
J
POWER BY THE HOUR
K
L
T
F SN #97
A SN #6
Q SN #71
J
PAAS
(PRODUCT AS A SERVICE)
D
L
T
R
A
Q
J
USAGE-BASED BILLING
C
K
D
L
A
T
G
C
SN #71
S
R
S
OEM
C
D
H
K
L
G
T
F SN #97
O SN #44
R
S
A SN #6
Q SN #71
J
OWNER OPERATOR
D
T
F SN #97
R
S
A SN #6
Q SN #71
J
TIER SUPPLIER
A
K
L
J
PREDICTIVE
MAINTENANCE
C
D
H
K
L
G
T
F SN #97
O SN #44
R
S
A SN #6
Q SN #71
J
PERFORMANCE
OPTIMIZATION
D
K
L
T
F SN #97
R
S
A SN #6
Q SN #71
J
OVER-THE-AIR
SOFTWARE UPDATES
L
T
R
A
Q
J
REMOTE
OPERATION
C
K
T
L
A
J
Highly Adaptable
Easily Extensible
Continuously Upgradable
© 2017 Aras aras.com
Smart Connected
Technology
Industrial Internet &
Industry 4.0
Artificial Intelligence /
Cognitive Computing
Why are Digital Twin & Thread Required?
Context is Critical for Interpretation & Action
CALL TO ACTION
Aras is actively engaging in proof of concept initiatives for
open reference architecture development
Please share your use cases & best practices
Digital Twin and Digital Thread
To collaborate & contribute, please contact:
Marc Lind | Aras
mlind@aras.com
© 2017 Aras aras.com

Why Connected Products Require a Digital Twin and Digital Thread

  • 1.
    © 2017 Arasaras.com© 2017 Aras Why Connected Products Require a Digital Twin & Digital Thread Marc Lind | Aras aras.com
  • 2.
    aras.com source: stratasys source:spacex Industries Changing & Being Disrupted Rapidly Materials Advancements & Additive Manufacturing Connected & Autonomous Data Collection & Handling © 2017 Aras
  • 3.
    aras.com Smart Connected Future= Even More Changes New Technologies + Next Gen Products + New Business Models More Systems-of-Systems & Machine-to-Machine Introduction of Artificial Intelligence / Machine Learning © 2017 Aras
  • 4.
    aras.com© 2017 Aras DataStreaming from Factory & Field
  • 5.
  • 6.
    aras.com Datacenter & Cloud ManyInitiatives Focused on Infrastructure Sensors Analytics source: goodrich © 2017 Aras
  • 7.
    © 2017 Arasaras.com Time Series Data Analyze, Interpret, Act
  • 8.
    aras.com source: airbus (Some) TIMESERIES DATA Airspeed Altitude Barometric Pressure (electronic/aneroid) Outside Air Temperature (C/F) Fuel pressure (x number of engines) Fuel flow (x number of engines) Cabin air pressure (psi/hg) Cargo air pressure; doors, bulkheads Cabin temperature; doors, bulkhead Cargo temperature Fuel temperature; fuel tanks, fuel pumps Radar air traffic – TCAS Hydraulic Pressure; brakes, flaps, spoilers, rudder, aileron, landing gear pumps Weight sensors - landing gear Turbines; RPM (N1/N2), Inlet- turbine pressure, Temperature, fuel burn Voltmeter; cockpit, main bus, cabin, auxillary power, cargo, engines, APU Generator meters (engines, APU) Electricity Load (amp/hr); flight deck, cabin, cargo Fire sensors; cabin, cargo, engines, fuel, brakes, electronics bay Carbon Dioxide; cabin, cargo Magnetic Compass GPS (satellite / terrestrial) Radio Compass (NDB) Doppler radar; weather, lightning, downdraft (microburst) ANALYSIS CONTEXT? Increasing Context Problem CONTEXT Digital Twin configuration Digital Thread traceability + © 2017 Aras
  • 9.
    © 2017 Arasaras.com Stefane Gardmann https://pro.europeana.eu/files/Europeana_Professional/Publications/Europeana%20White%20Paper%201.pdf Digital Twin Digital Thread Knowledge = Information in Context
  • 10.
    aras.com Ramifications Misdirected Actions Misinterpretations Inaccurate Conclusions FutureWithout Digital Twin + Digital Thread Context Risks Unnecessary Rework / Repairs Lost Revenues Customer Frustration Operational Shutdowns Regulatory Actions Brand Damage Liability Loss of Life Safety Issues COMPLEXITY © 2017 Aras Risks increase exponentially with artificial intelligence
  • 11.
    aras.com What is theDigital Twin Configuration? Just Mechanical? As-Designed? General representation of a family of products? © 2017 Aras
  • 12.
    aras.com Digital Twin Configuration Software Electronics Mechanical Electrical TailNumber / Serialized Instance ###### source: airbus exact digital representation of the physical thing right now © 2017 Aras
  • 13.
    aras.com© 2017 Aras ASSERVICED C D H K L G T F SN #97 O SN #44 R S A SN #6 Q SN #71 J AS DELIVERED C D H K L G T F SN #89 O SN #44 R S A SN #6 Q SN #71 J AS BUILT C D I K L G T F SN #89 O SN #44 R S A SN #6 Q SN #53 J AS PLANNED A P1 C F D P2 J K O L G T Q R S H / I AS ORDERED B C F D G J K O L Q R S A H / I AS DESIGNED B C D G K O J Q R S A E ? F H / I L ? M LOGICAL L2 L7 L3 L8 L5 L4 L9 L10 L11 L1 FUNCTIONAL F2 F8 F6 F4 F11 F10 F12 F9 F5 F7 F3 F13 F15 F14 F16 F1 REQUIRED R2 R7 R3 R8 R5 R6 R4 R9 R10 R11 R14 R13 R1 R12 Concept Design Development Launch Manufacture Service L6 DIGITALTWIN Digital Twin Over Lifecycle
  • 14.
    aras.com© 2017 Aras ASSERVICED C D H K L G T F SN #97 O SN #44 R S A SN #6 Q SN #71 J AS DELIVERED C D H K L G T F SN #89 O SN #44 R S A SN #6 Q SN #71 J AS BUILT C D I K L G T F SN #89 O SN #44 R S A SN #6 Q SN #53 J AS PLANNED A P1 C F D P2 J K O L G T Q R S H / I AS ORDERED B C F D G J K O L Q R S A H / I AS DESIGNED B C D G K O J Q R S A E ? F H / I L ? M LOGICAL L2 L7 L3 L8 L5 L4 L9 L10 L11 L1 FUNCTIONAL F2 F8 F6 F4 F11 F10 F12 F9 F5 F7 F3 F13 F15 F14 F16 F1 REQUIRED R2 R7 R3 R8 R5 R6 R4 R9 R10 R11 R14 R13 R1 R12 Concept Design Development Launch Manufacture Service L6 Digital Thread Lifecycle Traceability DIGITALTWIN
  • 15.
    aras.com What is theDigital Thread? © 2017 Aras Relationship Connections Meaningful relationship connections between all of a product’s digital assets – and their revisions over the lifecycle – including (but not limited to) versions of BOMs, parts, software, electronics, CAD models, documents, requirements, process plans, service manuals, etc
  • 16.
    aras.com© 2017 Aras DigitalThread = Meaningful Relationships Context ?Bill of Materials? FFF Alternates? Other? Dependency Rev A Part 123 Rev A Part 987 Rev B Part 987 Rev C Part 987 Floating Relationship Part 123 Rev A Rev A Part 987 Rev B Part 987 Rev C Part 987 Fixed Relationship
  • 17.
    aras.com© 2017 Aras Thousandsof Existing Systems & Petabytes of Data Users around the World source: boeing Are Digital Twin & Thread Achievable?
  • 18.
    © 2017 Arasaras.com MBSE Simulation ALM ECAD PDM MCAD PDM ERP Maint. Mgt. IOT Concept Development Manufacturing Service Platform Applications Platform Services MES Platform Overlay Approach
  • 19.
    © 2017 Arasaras.com Dr. Martin Eigner 19 System-of-Systems Architecture also called Platform for the PLM Backbone Not just Links, but Relationships Avoids Risk & Disruption Move Agile, Fast, Bi-modal IT
  • 20.
    © 2017 Arasaras.com20 Authoring- Systems TDM/PDM- Systems PLM Backbone PPS- Systems Project Management Systems Engineering Software Engineering Virt. & Phys. Validation Mechanical Engineering IOT Content Server E/E Engineering Industrial Engineering Sales/ Service SAP Requirement & Test Engineer. Business Logic & Integration Graphical User Interface (role based Apps) Service Request Management Reporting PLMCockpit Search and Browse DigitalPlatform(IBM) EPLAN Altium Mentor Creo Delmia ProcessEng.V6 Plan Simulation EnterpriseArchitect IntegrityModeler Rhapsody IntegrityLifecycleMger Doors+RQM+Change ReqMan Planisware PSR (ProjectStatusReporting) MSProject IntegrityLifecycleMger SynergyandChangeSuite Others Salesforce/Medias Maßblatt SVN SAP Creo Configurator WT TLDB,others SAP … Matlab, Bearinx, Famos, Abaqus… Hypertest ERS Enovia SAP ? Workflow Engine Application Integration (Webservice, REST, OSLC, …) Federated Repository (Data Backbone) Change Management Configuration Management Example Architecture Aras Platform at Schaeffler for 20,000 Users Platform Applications Platform Services
  • 21.
    aras.com© 2017 Aras PlatformRequirements for Digital Twin & Thread Ability to ingest data through API and Services Integration ability to manipulate processes and data through exposed API / Services Extensibility ability to build / extend functionality leveraging COTS framework Ability to exfiltrate data out of API / Services MUST HAVE Transparent & Interrogatable APIs FULL API Capabilities Exposed Open Data Model Dynamic Data Model Open Data Access CANNOT HAVE Proprietary APIs Incomplete or Hidden API Function Calls Proprietary Data Models Static / Hard Coded Data Model Obfuscated Data
  • 22.
    aras.com Data Model Requirementsfor Digital Twin Configuration © 2017 Aras Digital Twin Model Metadata (Persistent & Derived) CUSTOMER DEMANDS CUSTOMER 1 C D H K L G T F SN #97 O SN #44 R S A SN #6 Q SN #71 J CUSTOMER 2 D K L T F SN #97 R S A SN #6 Q SN #71 J CUSTOMER 3 D L T R A Q J CUSTOMER 4 D L T R A J BUSINESS MODEL IN-PRODUCT CAPABILITY PURCHASE C D H K L G T F SN #97 O SN #44 R S A SN #6 Q SN #71 J POWER BY THE HOUR K L T F SN #97 A SN #6 Q SN #71 J PAAS (PRODUCT AS A SERVICE) D L T R A Q J USAGE-BASED BILLING C K D L A T G C SN #71 S R S SUPPLY CHAIN PERSPECTIVE OEM C D H K L G T F SN #97 O SN #44 R S A SN #6 Q SN #71 J OWNER OPERATOR D T F SN #97 R S A SN #6 Q SN #71 J TIER SUPPLIER A K L J TARGET SCENARIO PREDICTIVE MAINTENANCE C D H K L G T F SN #97 O SN #44 R S A SN #6 Q SN #71 J PERFORMANCE OPTIMIZATION D K L T F SN #97 R S A SN #6 Q SN #71 J OVER-THE-AIR SOFTWARE UPDATES L T R A Q J REMOTE OPERATION C K T L A J
  • 23.
    aras.com Data Model Requirementsfor Digital Twin Configuration © 2017 Aras Digital Twin Model Metadata (Persistent & Derived) CUSTOMER DEMANDS BUSINESS MODEL SUPPLY CHAIN PERSPECTIVE TARGET SCENARIO CUSTOMER 1 C D H K L G T F SN #97 O SN #44 R S A SN #6 Q SN #71 J CUSTOMER 2 D K L T F SN #97 R S A SN #6 Q SN #71 J CUSTOMER 3 D L T R A Q J CUSTOMER 4 D L T R A J IN-PRODUCT CAPABILITY PURCHASE C D H K L G T F SN #97 O SN #44 R S A SN #6 Q SN #71 J POWER BY THE HOUR K L T F SN #97 A SN #6 Q SN #71 J PAAS (PRODUCT AS A SERVICE) D L T R A Q J USAGE-BASED BILLING C K D L A T G C SN #71 S R S OEM C D H K L G T F SN #97 O SN #44 R S A SN #6 Q SN #71 J OWNER OPERATOR D T F SN #97 R S A SN #6 Q SN #71 J TIER SUPPLIER A K L J PREDICTIVE MAINTENANCE C D H K L G T F SN #97 O SN #44 R S A SN #6 Q SN #71 J PERFORMANCE OPTIMIZATION D K L T F SN #97 R S A SN #6 Q SN #71 J OVER-THE-AIR SOFTWARE UPDATES L T R A Q J REMOTE OPERATION C K T L A J Highly Adaptable Easily Extensible Continuously Upgradable
  • 24.
    © 2017 Arasaras.com Smart Connected Technology Industrial Internet & Industry 4.0 Artificial Intelligence / Cognitive Computing Why are Digital Twin & Thread Required? Context is Critical for Interpretation & Action
  • 25.
    CALL TO ACTION Arasis actively engaging in proof of concept initiatives for open reference architecture development Please share your use cases & best practices Digital Twin and Digital Thread To collaborate & contribute, please contact: Marc Lind | Aras mlind@aras.com © 2017 Aras aras.com