This document is an update of the original Canadian Geospatial Data Infrastructure (CGDI) Vision that was created in 2000. Since that time, there have been significant developments and progress made in the development of the CGDI. The first five years have resulted in the development of an infrastructure that includes data and services, and in the establishment of key relationships and partnerships.
The aim of this document is to help set the course for the next five to ten years. The vision herein has been developed with the input of many. Rich contributions were received through a multi-faceted consultation process. Throughout the consultations there was widespread support for the current operating principles and vision statement. This input has allowed the preparation and presentation of a vision that encompasses the reflections and considerations of those with a keen interest in the future of the CGDI.
This document has been prepared to provide a vision that is accessible to those with an avid or even a casual interest in the future of the CGDI. Those more technically inclined are encouraged to access the companion Architecture document that is available on the CGDI Website at: http://www.cgdi.ca.
The CGDI Vision document provides a description of the vision, mission, objectives and goals for the CGDI for the next five to ten years. There are two companion documents to the vision:
Geospatial information plays an important role in the everyday lives of Canadians. Every time someone watches a weather forecast on TV, uses a roadmap, or phones 911, geospatial data is being utilized. Simply put, geospatial information provides almost infinite details or characteristics (i.e. buildings, roads, demographics, water, soil, weather, topography, wildlife, farming, etc.) regarding a geographic location, on land or water, and at a street, local, regional, provincial, national, or global level.
The
developments in information technology over the past decade have made
both the access to and the need for geospatial information expand
exponentially. In 1999, the Government of Canada recognized this new
environment and invested $60 million in a national partnership
initiative to improve access to geospatial information over the
Internet. This initiative, known as GeoConnections, was led by
Natural Resources Canada and was mandated to accelerate the
development of a Canadian Geospatial Data Infrastructure (CGDI).
Today, the CGDI facilitates the discovery, sharing and use of Canadian geospatial information and services. It is leading to various innovations and unforeseen applications that have increasing social and economic value.
The CGDI's current success has been predicated on its ability to bring a broad base of stakeholders together from industry, academia, and all levels of government in pursuing a common objective. It is through these national partnerships that standards have been created and adopted so that the infrastructure developed is accessible to everyone.
While
great strides have been made in building the CGDI, there is a need
for refinement of the infrastructure and greater participation of
partners, to ensure a critical mass of geospatial data, services, and
applications. Without continued investment and contributions from all
the partners, it is unlikely that the CGDI will be able to continue
to provide geospatial information to assist in policy development and
decision making by governments, industry, and the not-for-profit
sector.
Rich contributions to the Vision for the CGDI were received through a multi-faceted consultation process. Throughout the consultations there was widespread support for the current operating principles and vision statement. With this in mind, this Vision document aims to illustrate the direction that the CGDI must follow in the future to develop into the geospatial information infrastructure that Canada needs.
Canada is recognized as one of the leading nations in the integration of geospatial science, geospatial technology and the Internet. The CGDI delivers geographic content to the information highway through access to over 1400 geospatial database collections. The CGDI does not house this information but rather provides an infrastructure that allows a diverse community to share geospatial information and data based on common standards.
The CGDI provides the technology standards, access systems and protocols necessary to harmonize all of Canada's geospatial databases, and to make them accessible on the Internet. It is vital that there be standards and interoperability in the area of geospatial data technology. If not, time, money and effort will be duplicated, and Canada's geospatial data will be a patchwork at best. Through the CGDI, Canadian governments at all levels are managing their responsibilities more efficiently and enhancing decision making with more complete information at their disposal.
Canadians benefit from these advances whether as users or providers of data, technology and expertise. With continued advancement, Canadian businesses will be able to sustain and enhance their position in global markets with sought-after geospatial data products, expertise, and services.
The CGDI was created to:
Since 2000, significant strides have been made toward achieving the original Vision for the CGDI. Efforts have focused on enabling access to standards-based Web services, leveraging existing and emerging technologies and standards to adopt a general-purpose service-based platform. Overall, notable progress has been made in the following key areas:
Open standards and specifications are at the heart of the CGDI. Working closely with international standards bodies and national working groups, GeoConnections endorsed a number of standards for the CGDI that provide the foundation for an open and distributed network.
Specifications have been endorsed for the visualization (Web Map Service), presentation (Styled Layer Descriptor), and storage (Web Map Context) of data. Specifications for data manipulation (Web Feature Service), querying (Filter Encoding), and for coding the transport and storage of geographic information (Geography Markup Language) also have been endorsed. Specifications for searching Geospatial data resources (Geodata Discovery Service) and for providing a standard way of describing Geospatial data (Metadata for Geodata) represent other accomplishments in the area of standards and specifications.
Information that supports decision making must be based on quality data to provide value to the decision maker. CGDI framework data helps fulfill this requirement. It is the set of continuous and fully integrated geospatial data that provides context and reference information for the country. Significant strides have been made in this area, highlighted by the progress achieved through the GeoBase initiative, which has produced agreement on six layers of geospatial framework data and increased inter-jurisdictional cooperation. CGDI framework data will serve as the underpinning for a number of geospatial applications.
The CGDI also provides access to thematic data sets that describe the characteristics of geospatial features, providing information on specific topics, such as rainfall, geology, or population. Thematic data attributes are geospatially referenced so they can be tied to locations on the Earth and be used in applications.
The Atlas of Canada provides a collection of maps and related information about Canada. It offers thematic data such as freshwater and population distribution via CGDI Web services. The GeoConnections Discovery Portal is an ideal place to discover thematic data. Searching on a particular subject (e.g., vegetation or snowfall) yields thematic results. Most thematic data sets can be distributed via the CGDI, and it is the sharing of these data sets that will enable the most powerful CGDI applications.
Web services provide the basis for interactions across the Internet that allow users to contribute, access, and exchange geospatial data. The GeoConnections Discovery Portal allows for the discovery of geospatial Web services and identifies those that conform to CGDI-endorsed specifications.
Applications use one or more Web services to view, publish, edit or discover geospatial data from Web servers. Applications based on core CGDI components, interfaces and services are beginning to deliver many of the anticipated benefits to Canadians.
From an end-user perspective, significant developments have occurred in the viewer client applications that display graphics from map servers and the discovery client applications that allow for searching for geospatial data. For data providers, publisher and editor applications allow providers to select how to distribute their data to users, and how to add, remove or update shared data.
The CGDI has fostered relationships and partnerships with collaborators from public, private and academic sectors. For example, CGDI advisory groups have cross-sectoral memberships enabling them to leverage expertise and contributions from all stakeholders.
As well, the Canadian Geomatics Accord creates a framework for federal, provincial and territorial collaboration on geomatics issues. The Accord is a key federal/provincial/ territorial partnership agreement and has been successful in focusing efforts on more efficient geomatics data collection, distribution, and maintenance.
Significant strides have been made in the area of policy. Extensive cross-country consultations in 1999-2000 provided key policy input that helped shape the CGDI's current form.
In recognition of the importance of policy development, CGDI stakeholders worked at finding solutions to the difficult policy issues involved in enhancing access to government geospatial data. Policy development focused on creative consensus-building approaches to address the following areas:
The CGDI has enjoyed successes and challenges over the past five years. At its inception the guiding principles of the CGDI set the course and scope of the initiative. These principles remain relevant today, with some minor modifications. Combined, these guiding principles serve as the foundation upon which the Vision and Mission of the CGDI is built. During recent consultations, the geospatial community reviewed and endorsed the principles in addition to providing suggestions that three new principles be included.
The original principles (founding principles) are listed in order of importance; the three new principles (building principles) are listed separately.
This Vision will help set the needed mission, goals and objectives for achieving the CGDI of the future. It is an overarching touchstone against which to chart CGDI progress.
The Vision for the CGDI is:
To enable access to the authoritative and comprehensive sources of Canadian geospatial information to support decision-making.
The image below depicts the relationship between the Vision and the Guiding Principles for the CGDI.
There are five key terms within the Vision that tie it directly to the Guiding Principles of the CGDI:
Enable is tied directly to self-sustaining. The CGDI does not create data or technological infrastructures, rather it enables organizations to contribute to and make decisions based on information available through the CGDI.
Access builds on the principles of transparency and openness. The open standards of the CGDI are designed to provide transparent and seamless access to geospatial information.
An authoritative CGDI will use data that is closest to source, is based on open standards and specifications, and allows for contributors to self organize. For the CGDI to be authoritative, it must provide timely and secure access to data.
For the CGDI to be comprehensive it must make a shift to be more user driven. It must continue to evolve to meet new needs and development and must continue to build on and create new cooperative partnerships.
Information encompasses both data and information. The information must be accurate and accessible through the CGDI to support policy and decision making.
To achieve the Vision of the CGDI, a coordinating organization will need to:
For the Vision to be realized and the Mission to be effective, each Mission objective needs to be linked to measurable goals. An organization coordinating the further development of the CGDI must actively pursue targeted goals over the next five years. It should be noted that some goals can address multiple Mission objectives. The main objectives and corresponding goals for continued development of the CGDI are:
Objective 1: Support decision making and policy development to ensure Canada's health, social, cultural, economic, and natural resource heritage and future.
Objective 2: Facilitate access to the leading sources of Canadian geospatial information.
Objective 3: Provide continued involvement and leadership in the development of geospatial standards and specifications.
Objective 4: Foster geospatial partnerships and contributions across all sectors, at all levels of government, and at the international level
Objective 5: Support a broad and vibrant user community
Objective 6: Ensure that the operations are on-going and sustainable.
As portrayed in the diagram below, the companion CGDI documents, are inseparably linked, with Architectural concepts and Roadmap requirements feeding the Vision. The Vision can be delivered only with a solid Architecture and Roadmap as its foundation.
Since the inception of the CGDI, the development of the architecture has centered on the endorsement and implementation of open standards and specifications. These standards are known as “CGDI-endorsed standards” and they provide the technical foundation of the infrastructure. Based on the achievements to date, the CGDI has reached a level of technical maturity that places it at the forefront of national geospatial infrastructures throughout the world.
As the user community continues to evolve and user capacity becomes increasingly sophisticated, the requirements placed on the infrastructure will grow accordingly. Above all is the demand for access to authoritative and comprehensive information. Within a geospatial infrastructure, data deserves the same prominence as services. The delivery of timely and accurate data has a number of architectural implications for the CGDI. Enhanced security, quality of service standards and improved search capabilities are some of the key architectural requirements. Prioritizing and delivering on these requirements will move the CGDI down the evolutionary path towards long-term sustainability.
The Roadmap provides input into a detailed action and project plan that needs to be developed by CGDI's partnership community. The road to achieving the Vision for the CGDI is complex and challenging, but ultimately achievable and worthwhile. As the CGDI follows the Roadmap, detours will be made and bumpy roads will not be avoidable. Nevertheless, with a renewed emphasis on users, coordination, content and infrastructure, the foundation of the CGDI will thrive.
The Roadmap document combines the experiences, wisdom, and values of many. Relationships through partnerships and consultations have helped build the CGDI to date. Efforts in these areas must continue to be a focus. The future of the CGDI looks bright, but action, effort, and perseverance will be necessary to make the Vision of the future CGDI a reality.
Term |
Definition |
Application
|
The combined set of software programs that perform a specific function directly for a user. Further, a CGDI application is the utilization of CGDI technology (e.g., tools and/or services) and CGDI data by a given user or community of practice to address a specific issue. |
Architecture |
The organizational structure and operating environment of the CGDI, including the relationships between its parts, and the principles and guidelines governing their design and evolution. |
Canadian Geospatial Data Infrastructure (CGDI)
|
An Internet infrastructure comprised of the developments of the federal, provincial, territorial and private-sector partners who are creating the technology, standards, access systems and protocols necessary to harmonize Canada's geospatial databases, and make them accessible on the Internet. |
Client
|
A software component that accesses a service. The Guide to the CGDI distinguishes between a client (an inanimate part of the process) and a user (an individual who uses a computer, program, network or related service). |
Data
|
Distinct pieces of factual information, especially information organized for analysis or used to reason or make decisions. Data is usually formatted in a special way, and exists in a variety of forms. Data in the CGDI comprises maps, satellite images, publications and other geospatial data provided by Canadian and international sources. |
Framework Data
|
The set of geospatial data that provides the reference framework for all other CGDI data. |
Geodata
|
Georeferenced spatial data such as a road network or a satellite image. Geodata explicitly describes the spatial extent of a set of features or describes a measurable surface. It includes both geospatial data and geolinked data.
|
Geographic Markup Language (GML) |
An open XML grammar specification used to transfer geographic features via the Internet. |
Geospatial |
Referring to location relative to the Earth's surface. "Geospatial" is more precise in many GIS contexts than "geographic," because geospatial information is often used in ways that do not involve a graphic representation, or map, of the information. |
Geospatial Data
|
Data with explicit geographic positioning information included, such as a road network from a GIS, or a georeferenced satellite image. Geospatial data may include attribute data that describes the features found in the dataset. |
Geospatial Information |
Information about entities and phenomena that includes their location with respect to the Earth's surface. Frequently used as a synonym for “geodata”, but technically geodata are "dry" digitally represented facts or recorded observations, which on their own have no meaning. They become information when interpreted and put in context by humans. |
Infrastructure |
A reliable, supporting environment, analogous to a road or telecommunications network that facilitates the access to geographically related information using a minimum set of standard practices, protocols and specifications. |
Interface
|
A specification for a set of operations that are made externally available by a component to other components. The state and functionality of a component is hidden, and is only made externally accessible through the interfaces of the components. The interfaces are the only "public" or "visible" part of the component. The same interface may be provided by several components and used by many components or applications. |
Metadata |
Information about data. Metadata describes how and when and by whom a particular set of data was collected, and how the data are formatted. Metadata is essential for understanding information stored in data warehouses. |
Server
|
A physical installation of a component that delivers a service, and provides the realization of its operations.
|
Service
|
A collection of operations, accessible through one or more interfaces, that allows a user to evoke a behaviour of value to that user. A service is delivered by a server. |
Specification |
A document written by a consortium, vendor, or user that specifies a technological area with a well-defined scope, primarily for use by developers as a guide to implementation. A specification is not necessarily a formal standard. |
Standard |
A document that specifies a technological area with a well-defined scope, usually by a formal standardization body and process. |