Document Overview

This is the technical analysis volume. It is based on the architectural principles introduced in Volume I section 3. Specifically it discusses in several concise sections and some large appendices the details of the analysis and technical results produced by the project.

To summarize, this volume discusses:

· Architectural Principles	Relates the principles introduced in Volume I to the specifics of the analyses detailing them herein
· Architectural Analysis	The high-level strategies used to solve the problem, the different environments, as well as common services, information models, and interfaces that were identified as the results of this analysis.
· Technology Analysis	A comparative analysis of the universe of technologies available and which are most closely aligned with IntelliGrid Architecture requirements
· Deployment Scenarios	To identify common integration scenarios and detail how IntelliGrid Architecture can be used to accomplish them.
· Benefits and Conclusions	A brief summary of the benefits from a technology and interoperability standpoint.
· Appendices A..E	Detailed discussions of research by the team

Architectural Principles

This section reprises the levels of abstraction framework presented in Volume I. By successively abstracting the architectural analysis via these descriptions, the dominant aspects of architectural issues were exposed and detailed.

· Business needs

· Strategic vision

· Tactical approach

· Deployment scenarios

Architectural Analysis

A primary goal of IntelliGrid Architecture project is designing a common architecture for utilities. This section summarizes the principle modeling/analysis elements identified and applied in IntelliGrid Architecture

· Requirements	Common industry requirements permit application constraints to be concisely and precisely defined.
· Services	Refining applications into the services that can be combined in various ways to achieve functional goals.
· Information models	Common building blocks of information exchanged to accomplish applications.
· Interfaces	Low level primitives that act as atoms to build the molecular common services of IntelliGrid Architecture. The definition of these atoms facilitates the conveyance of the common services across environmental boundaries that may utilize different technologies.

Technology Analysis

This section summarizes the results of detailed analysis performed on the following important but often considered independent subjects crucial to collectively achieving a robust architecture.

· Enterprise management

· Data management

· Platform

· Communications

· Security

Deployment scenarios

In deploying applications using IntelliGrid Architecture, this section identifies the issues to consider and proposed solutions in performing integration.

· Field Device Integration	Shows how 61850 and DNP3 based SCADA systems can be integrated to provide unified rich model based device access and control.
· Enterprise Management	Encompasses the integration of a DMTF based Enterprise Management systems with TC 57 based utility systems.
· Application Integration	How a deployment of the CIM and GID can be used to create a platform for legacy application integration.
· Data Analysis	As recovery of money spent on asset related operations is not guaranteed, it is critical that asset related costs be managed wisely.
· Energy Market Integration	Describes how a utility might integrate Energy Market Transaction Servers with utility operational systems.

Benefits and conclusions

This section briefly summarizes how IntelliGrid Architecture facilitates the realization of the following benefits:

· Reusable infrastructure

· Interoperability through standards

· Available off the shelf adaptors

· 3rd party applications

· Extensibility

· Incremental approach

What is in this volume

The following table identifies and summarizes the major sections in this volume:

Section 1 Principles and Requirements	The overall principles and requirements used to develop the architecture and a brief description of the problems it was intended to solve.
Section 2 Analysis	The high-level strategies used to solve the problem, the different environments, as well as common services, information models, and interfaces that were identified as the results of this analysis.
Section 3 Technology Recommendations	Discussion of the implementation of the common modeling elements (services, information models, and interfaces) using specific recommended technologies within the defined set of environments.
Section 4 Deployment Scenarios	Guidelines and examples of how the architecture should be deployed by utilities.
Section 5 Benefits	Summarized the benefits of IntelliGrid Architecture from a technical standpoint
Appendix A: Security	A comprehensive discussion of security considerations for energy industry and related communications
Appendix B: Network Management Technologies	A discussion of network management technologies and needs
Appendix C: Resilient Communication Services	Discusses those technologies and requirements that are necessary for robust communications networks.
Appendix D: Technologies, Common Services, and Best Practices	A detailed summary of all the individual technologies, common services, and best practices identified by IntelliGrid Architecture project
Appendix E: Environments	A detailed description of IntelliGrid Architecture environments