Why a Virtual Node What is the Virtual Node Concept Advantages A Node in the Cloud Basics -...
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The Exchange Network Virtual Node
5/30/2012
Why a Virtual Node What is the Virtual Node Concept Advantages A Node in the Cloud Basics - Components Architecture Services Admin user Interface Partner Database Connectivity with the Virtual Node Data Mapping Development Status Demo
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Topics
Provide a Low Cost Node Option for Partners
Decrease Operations and Maintenance Costs
Simplify Development and Maintenance
Why a Virtual Node
A central node server that hosts any number of partner nodes: state, tribe, region, agency, etc..
Each partner node is simply configured on the central or cloud server from a web application
Each partner node functions like a conventional node only it is much simpler and cheaper to set up and maintain
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What is the Virtual Node
Low Cost: Costs should be significantly lower compared with a traditional node
Highly Agile: A new partner node can be created with a simple configuration form
Enhanced Manageability: Nodes are centrally managed, secured and serviced
Common Architecture: New features will be shared by all nodes
Virtual nodes can ‘inherit’ services from the base-node
The ENDS service information can be maintainedautomatically
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Virtual Node Advantages
Nodes are moved to the cloud, not the databases.
Nodes connect to databases through a secure backend bridge or VPN.
A node admin controls each node, and how it accesses the their databases.
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Virtual Node in the Cloud
1) Virtual node server
2) Secure database connections
3) Admin User Interface
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Basic Components
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Physical Server Virtual Machines Virtual Node
Node Implementations
VirtualMachin
e
VirtualMachine
QA ServerNAASVirtualNode
Tribe1
Tribe2
State1
State2
State3
Agency1
Agency2
Agency..
Physical Server
VMWARE
VirtualNode
Tribe1
Tribe2
State1
State2
State3
Agency1
Agency2
Agency..
9Virtual Node
• The ENVN is a node with its own web services description language :
• Node Management: CreateNode, UpdateNode, DeleteNode and GetNodeList. • New nodes are created by the helpdesk
• Service Management: CreateService, UpdateService, DeleteService and GetServiceList – • Services could be automatically published to ENDS
• Dataflow Management: CreateDataflow, UpdateDataflow, DeleteDataflow and GetDataflowList.
• Task Management: CreateTask, UpdateTask, DeleteTask and GetTaskList • Used to schedule tasks
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ENVN Web Services
Virtual Node Administration Platform (VNAP)
Home | About | FAQs | Help
Test User | Profile | Logout
Node Dashboard Services Setup Wizard
Method Type
Service Status
Service Description
Display all water transaction data
Data Source
TEST QUERY
Solicit V
Please select an existing data source and provide SQL statement to test
Steps
1. Database2. Service3. Template4. Finish
Service Settings
Enabled V
SQL Statement
SELECT * FROM {TABLE} WHERE {FIELD}.{TABLE}
cgi.oracle.test V
Workflow
Node ID / Description:CWANJ - Clean Water Act NJ Waterways
Dataflow:CWANJ
Select a workflow… V
Explanation of FieldsReview these requirements to ensure your node is working.
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Based on a partner’s internal security requirements, they might choose:
Virtual Private Network Connection
Backend Relay with Internet Service Bus (ISB)
Direct Backend Database Bridge
Backend Relay with AppFabric
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Secure Database Connection Options
VN Mapping Process
Two Key Steps 1. Data Mapping: Create a one to one
relationships between data columns and XML elements (Map Force, SQL Query Builder, Oracle Query Designer)
2. Structure Construction: Put the XML element into hierarchy at the correct position using XLST (XSLT style-sheet is simplified and generated – not coded)
XML Mapping & Transformation
1) Virtual Node Server:The central node server has been designed and prototyped. Nodes, services, and tasks have been created and tested.
2) Secure Database Connections:Secure processes for connecting to State databases have been designed and developed. We are testing remote database connections from the virtual node to our EPA Clydesdale database server. A sample database has been integrated simplify the creation of test services by partner administrators.
3) Admin User Interface: A graphical user interface is under design. Wireframes have been generated. Features and functions are being designed.
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Current Development
Who is potentially interested in this kind of Node?
What are the critical features?◦ Open Node Plug-in support? ◦ Mapping tool?◦ REST support?
What governance model do we use?
Are you interested in helping guide the development? Joining a design committee?
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Questions to YOU!