The International Archives oj the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B4. Beijing 2008
41
taking, as both, with different capacities, allow for the treatment
and analysis of geographic information.
Regarding the dependence relationships GIS’s are capable of
generating outputs with all cartographic formalities, including
media different from the traditional.
GIS arrived on the cartographic scene with a strong impact,
where it is of some concern for the future of cartography, with
the development of automated systems and the advent of GIS.
There were times when cartographers were appreciated scholars
who spent a whole life creating one or a few maps. Facing the
up to date growing demands for geographic useful information,
cartographers now have to see themselves seated facing a
computer monitor and feeling confused and distrustful without
not so much confidence on what they are doing. This feeling is
hard to eliminate if the ideas are not clear. We feel this is a
negative relationship between cartography and GIS.
The solution seems to be on the development of a new
“cartographic feeling” in an environment of new technological
developments where GIS should be regarded as one of the main
subjects, concepts and ideas and not just for operative training
on computer hardware and software.
The relationship between cartography and GIS can be best
visualized from a practical point of view. One of the modes of
GIS is the cartographic one, but this is mostly given in the
context of applications and not necessarily as an objective
reality. Computer Assisted Mapping (CAM) has a specific
production objective, but lacks the analytical capacities of a
GIS. On its part, GIS include cartographic capacities, which
being important have not the same weight as the analytical.
However, GIS depends basically on cartography for data
capture, which in many cases has to be converted to a digital
format, structured and put into a database, processed as required
and finally given some sort of output.
9. THE IDEMEX
Mexico is under a technological and organizational imperative
to develop the national SDI in answer to demands as imposed
by globalization, sustainable development and explosive
technology increase. There is a marked awareness in the high
decision centres about the importance of geospatial information,
which on the other hand sets increasing demands for useful
information for everybody through defined schema of
responsible management.
Since 1997 INEGI developed the idea around the SDI. In a
general context, three stages can be identified; one is the
historical frame, then the change to digital, and thirdly the
compliance with the advance of technology and new demands.
The first stage in the XIXth. and part of the XXth. century
witnessed the first formal productive efforts of geographic
information through cartography at small scales, as stated in the
first part of this paper. The second stage in the 90 s saw the
modernization of geographic activities with digital technology.
In the third stage a pressing need arose to coordinate and
standardize the information. The effort was devoted to adopt
efficiency criteria for the integration and management of
geospatial information in terms of availability, knowledge of
its characteristics, considerations on access and distribution and
the intensive use of information and communication
technologies. The idea about the IDEMex began to develop.
The IDEMex is conceived to support the integration and
development of the NGIS, as well as a tool for the management
of the information contained in it, facilitating its operation, and
having in mind to provide for the best geographic information
service.
The basic technical components of the IDEMex are those next
listed:
■ Catalogues and fundamental data, Metadata and
Clearinghouses
■ Access, Interoperability and distribution
■ Norms and standards development
■ Construction of alliances, institutional strength
ening and capacity building
There is support for the IDEMex from all sectors which
recognize there is a need for cooperation under a coordinating
body, the INEGI. There is a growing awareness about the
application of agreed standards, as well as to the need to avoid
duplicities and adopt rationalization production schema, making
geospatial information available for all interested parties. The
information is be looked at with a vision of future.
There are some official basic concepts regarding geospatial
information in connection with the IDEMex: First is the need to
upgrade the NGIS according to present needs, so providing a
further step to democratize geospatial information. Both the
statistical and geographic information systems must satisfy the
information requirements of all sectors in a participating
context.
In terms of national requirements there is a need to promote
communication and interchange ideas and experiences, as well
as to fortify links and agreements for updating the NGIS and the
establishment of common agreed standards. There is also a need
to come to terms with other organizations, looking for
complementarities and rationalization of the production.
As a strategy to promote awareness and commitment about the
IDEMex, in 2003 INEGI organized a National Geography
Convention attended by representatives of all sectors, especially
the official one. The objective was to position geographic
information as a strategic resource for the building of the
Mexico of future, with the purpose to attain consensus and a
committed participation and cooperation. In this context, the
main subject was the IDEMex. This has been followed yearly
with other meetings where the SDI has been central.
There are some interesting aspects regarding the organization of
the IDEMex to put it in the proper frame: with the LIEG and
the NGIS, with the consultative and participation committees
established by the law for the integration and development of
the NGIS, with the National Statistical and Geographic
Development Program (PRONADEIG), and with the sexenial
National Development Plans.
Regarding technical committees, the most important one is the
Technical Consultative on Geographic Information Committee,
integrated by high level officials from the Federal and State
governments. The main function is to issue opinion and define
priorities for the PRONADEIG. Given the high level of this