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State Network Nodes

The State of New Hampshire publishes the Demonstrated Node Configuration (DNC) on the NSB Website. enfoTech served as the primary contractor for the development of the DNC.

The DNC will serve as a guidance for other states considering to establish their own data transfer point, or Node, on the Exchange Network, which may consequently help reduce implementation efforts, time and costs. Contact Us for more information.

enfoTech Successfully Connects State Environmental Agencies with EPA's Information Exchange Network via CDX

Feature Document
Comparison of Node-building using .NET vs. BizTalk
(PDF, 1MB)
As more and more environmental regulations are developed and refined each year, the EPA is increasingly finding itself sitting on top of a mountain of environmental information (applications, reports, compliance, enforcement, etc.). Collecting and managing this information has been a challenge for years — a challenge that could be significantly addressed by streamlining the process using reliable electronic data exchange methods.

The EPA has responded to this challenge by committing to build a National Environmental Information Exchange Network (NEIEN) to allow the sharing of environmental information. The NEIEN facilitates information sharing amongst the EPA, other federal agencies, regulated organizations, and state, local and tribal governments through the use of Network Nodes. Built on a Web services model used extensively in the business world, Network Nodes act as information gateways to foster machine-to-machine information exchange – thus reducing the need for human involvement in the information exchange process. EPA is currently developing their own Network Node that will allow Network Partners (i.e., EPA, States, Tribal, and regulated facilities) to submit and query environmental information from EPA's multitude of environmental programs such as Toxic Release Inventory, Permit Compliance System (PCS)/Discharge Monitoring Data, Safe Drinking Water Information System (SDWIS), National Emission Inventory, and several others.

Tying in State Environmental Agencies

The majority of environmental information collected by the EPA comes from the State Environmental Agencies. Because of this, the establishment of State Nodes is beneficial by allowing the EPA (as well as other Network partners) to query the environmental information they need, when they need it, without requiring human intervention.

In order to foster an increased availability of State environmental information, the National Steering Board (NSB) for the NEIEN project initiated a Node pilot project consisting of representatives from the EPA and 7 states (Delaware, Maine, Mississippi, Nebraska, New Hampshire, New Mexico, and Utah) to pilot the development of State Network Nodes. They were charged with developing not only working Network Nodes, but the Node design specifications, protocol, and security guidelines that would serve as a model for all 50 states.

enfoTech Answers the Call

enfoTech was selected as a consultant to help construct both New Hampshire's and Delaware's Node — the only contractor to be hired by multiple states. enfoTech's unique combination of environmental Web application development expertise, NEIEN experience, and expert environmental regulation domain knowledge has made them a perfect selection for Network Node construction and consulting, and helps establish them as a prominent force in the Node development process.

During this process, enfoTech provided their experience to develop a technical write-up which helped inform the design specifications and protocol upon which the Network Nodes are now based.

Delaware Node Successfully Completed by enfoTech: A Streamlined .NET Implementation Approach

The Delaware Department of Natural Resources decided to implement their Network Node by using the Microsoft .NET framework. Recognizing the reasonably low cost of initial development software such as Visual Studio .NET, they opted to use this tool without relying on a higher-end Application Server such as Biztalk. Using the .NET framework, their Node was able to interface with their state-wide SQL Server database in their multi-tiered network environment. enfoTech helped Delaware ensure that their Node successfully operated in accordance with the Node 1.0 Specifications. The Delaware Node was successfully completed on 12/06/2002. The Node has been demonstrated to flow Facility data to CDX. The Node was then fine-tuned to meet the Node 1.0 specifications on 3/21/2003.

New Hampshire Node Successfully Completed by enfoTech: A Biztalk Powerhouse Approach

The New Hampshire Department of Environmental Services took a slightly different approach, opting to utilize a comprehensive approach that integrates scalability features of Biztalk server to deploy their Network Node and to provide a broader foundation to support multiple data flows from various environmental program areas. Their Node implementation relied on an Oracle database from which to draw their environmental information, and a SQL Server database to track Node logging information. Once again, enfoTech helped New Hampshire ensure that their Node successfully operated in accordance with the Node 1.0 Specifications. The New Hampshire Node was successfully completed on 12/06/2002. The Node has been demonstrated to flow Facility data to CDX. The Node was then fine tuned to meet the Node 1.0 specifications on 3/21/2003.

Building a Node for your infrastructure environment: Java or .NET Implementations

The first decision that must be made when a State undertakes a Node construction project is to select the developing environment upon which the Node will reside. Currently, this means a decision between a Java (J2EE) approach, or a Microsoft (.NET) approach. enfoTech has successfully completed Node construction in both Java and .NET environments.

Understanding that many States prefer to implement Java-based Network Nodes, enfoTech has constructed a Network Node fully compatible with the J2EE Java framework. These Node capabilities were demonstrated to a meeting of representatives from 9 states, EPA headquarters, and EPA Regions 2, 3, and 5 in February 2003. enfoTech demonstrated bi-directional environmental information exchange between a .NET Network Node and a J2EE Network Node, thus demonstrating the interoperability of the Web services-based Network Node architecture.

Building a Node to meet your business requirements: Simplified vs. Comprehensive Approaches

Another consideration for Node construction is to choose between "simple" and "comprehensive" approaches. A final decision could be made based on:

  • Available funding
  • State infrastructure and knowledge readiness to implement the Node
  • Needs for multiple data flows from various environmental programs

A general bench-marking analysis has been completed by enfoTech to provide you with a quick overview.

enfoTech could help you with Network Node projects

Although there are a few States that have been in the vanguard of Network Node construction, other States are still in the process of learning exactly what a Node is and beginning to examine how a Node can help streamline their business processes. enfoTech has provided assistance to several state environmental agencies, including Indiana, Michigan, Pennsylvania, and New Jersey. enfoTech has worked closely with the IT and Program Area staffs at these agencies to complete a Readiness Assessment project to identify potential areas that could benefit by adopting Exchange Network principles, point out areas (either IT infrastructure, resource availability, or data flow processes) that may need improvement, and finally, propose a multi-year transition plan.

Moving Forward

The activities cited above, in addition to enfoTech's Node construction and consulting activities currently in progress at other States, help to firmly establish enfoTech as the premier consultant and implementer of State Network Nodes. Moving forward, enfoTech's State Network Node construction strategy is to develop Nodes that work best within a State's existing environment, while ensuring that they abide by all required Node specifications and security standards.

For additional information or comments on this document, please contact:

Jason Huang at Jason_huang@enfotech.com or
Tony Jeng
at tony_jeng@enfotech.com

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