Core System Architecture Viewpoints
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Core System System Architecture Document (SAD) www.its.dot.gov/index.htm Draft — September 6, 2011 Produced by Lockheed Martin ITS Joint Program Office Research and Innovative Technology Administration U.S. Department of Transportation Notice This document is disseminated under the sponsorship of the Department of Transportation in the interest of information exchange. The United States Govern- ment assumes no liability for its contents or use thereof. Report Documentation Page Form Approved OMB No. 0704-0188 The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. 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TELEPHONE NUMBER Unclassified Unclassified Unclassified (202) 366-0278 Core System System Architecture Document Draft Sep 6, 2011 CHANGE LOG Revision Change Summary Author Date - Initial Release Lockheed Martin 6/13/2011 A Walkthrough Draft Lockheed Martin 7/13/2011 B Draft Lockheed Martin 9/06/2011 READER’S GUIDE Those readers familiar with previous editions of this document should under- stand the changes that the document has undergone to make this version: - In every case where an alternative was presented a selection was made and included in chapter 4. All alternatives not selected have been moved to chapter 6. Rationale for the rejection of alternatives accompanies those alternatives in chapter 6. Most significantly, the functionality of IEEE 1609.2 Certificate Authority has been moved outside the Core System. - The organization of Functional Views has been changed. Misbehavior Management, System Configuration and User Configuration are now in their own views and not integrated within other views. The removal of IEEE 1609.2 Certificate Authority functions has affected many Functional Views. - Enterprise relationships facilitating the development of business models are included in an Enterprise View – Business Model Facilitation. - Additional Communications and Information Views have been added. - Software Engineering Objects have been added to Connectivity Views. i Core System System Architecture Document Draft Sep 6, 2011 TABLE OF CONTENTS Section Title Page 1.0 Introduction ................................................................................................................................................... 1 1.1 Identification .............................................................................................................................................. 1 1.2 Document Overview .................................................................................................................................. 1 1.3 Scope .......................................................................................................................................................... 2 1.4 Context ....................................................................................................................................................... 3 1.5 References .................................................................................................................................................. 4 2.0 Stakeholders and Concerns............................................................................................................................ 6 2.1 Stakeholders ............................................................................................................................................... 6 2.1.1 Users .................................................................................................................................................... 6 2.1.2 Acquirer/Deployer ............................................................................................................................... 7 2.1.3 Maintainer/Administrator .................................................................................................................... 7 2.1.4 Developer ............................................................................................................................................. 7 2.1.5 Manager ............................................................................................................................................... 7 2.1.6 Tester ................................................................................................................................................... 7 2.1.7 Policy-Setter ........................................................................................................................................ 8 2.1.8 Application Developer ......................................................................................................................... 8 2.1.9 Device Developer ................................................................................................................................ 8 2.1.10 Service Provider .................................................................................................................................. 8 2.2 Concerns of Stakeholders ........................................................................................................................... 8 2.2.1 Performance ......................................................................................................................................... 8 2.2.2 Interfaces ............................................................................................................................................. 8 2.2.3 Functionality ........................................................................................................................................ 8 2.2.4 Security ................................................................................................................................................ 8 2.2.5 Organization/Resources ....................................................................................................................... 9 2.2.6 Appropriateness ................................................................................................................................... 9 2.2.7 Feasibility ............................................................................................................................................ 9 2.2.8 Risks .................................................................................................................................................... 9 2.2.9 Evolvability/Flexibility ........................................................................................................................ 9 2.2.10 Deployability ....................................................................................................................................... 9 2.2.11 Maintainability ..................................................................................................................................... 9 2.3 Stakeholder / Concern Matrix .................................................................................................................... 9 3.0 Architectural Viewpoints............................................................................................................................. 10 3.1 Global Definitions .................................................................................................................................... 15 3.2 Enterprise Viewpoint 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