Along the top of the page are a series of buttons that link to different pages of the architecture. The pages to which each of these buttons leads are described below.

• Home: This button takes the user to the homepage for all four of the Massachusetts Regional ITS Architectures.
  
  
• Metropolitan Boston, Central Massachusetts, Southeastern Massachusetts, Western Massachusetts: These buttons take the user to the home page of the homepage of the Metropolitan Boston, Central Massachusetts, Southeastern Massachusetts, and Western Massachusetts Regional ITS Architectures, respectively.
  
  
• Glossary: This page presents a glossary of useful ITS architecture terms, as defined in the National ITS Architecture.
  
  
• Links: This page provides useful links to other transportation agency websites.
  
  
• Feedback: This button launches the user’s email application, allowing the user to send comments to the MassDOT – Office of Transportation Planning (OTP).
  
  

Along the right side of the page are a series of buttons that link to different pages of the architecture. The pages to which each of these buttons leads are described below.

• Region Home Page: The homepage for the Regional ITS architecture.
  
  
• Stakeholders: This page presents the full list of regional stakeholders, along with descriptions for each.
  
  
• Inventory by Stakeholder: This page presents the inventory of ITS elements, arranged by stakeholder. This allows all the elements held by a single stakeholder to be viewed simultaneously. Clicking on an element name links to a detail page for that element that provides more information, including a listing of all interfacing elements.
  
  
• Inventory by Entity: This page presents the inventory of ITS elements, arranged by entity (subsystems and terminators). This allows all elements with related functions to be viewed simultaneously. Clicking on an element name links to a detail page for that element.
  
  
• Market Packages by Functional Area: This page presents a table of the relevant market packages for the region. Clicking on the market package number links to a series of customized diagrams for each package. These market package diagrams illustrate the elements and interfaces that are contained in that market package. Each subsystem or terminator in a market package diagram is labeled with both its generic National ITS Architecture name and the name of the local stakeholder instance that participates in the customized market package. In this way the market package identifies the information exchange (using architecture flows) between specific elements in the region to achieve a particular service or set of services.
  
  
• Market Packages by Stakeholder: This page presents a list of the relevant market packages for each stakeholder. Clicking on a market package links to the customized diagram in which that stakeholder’s element appears.
  
  
• Market Package Descriptions: This page presents descriptions for each of the market packages that are included in the architecture.
  
  
• Equipment Package Descriptions: This page presents descriptions of the relevant equipment packages from the architecture. Equipment packages represent specific functions carried out by the subsystems.
  
  
• Architecture Flow Descriptions: This page presents descriptions of the relevant architecture flows from the architecture. Architecture flows appear in the interface diagrams indicating the information that is exchanged between two different components.
  
  
• Project Documents: This page contains documents generated through the architecture development process, including the deliverables reviewed by regional stakeholders.