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“SDI is not a business model nor will it ever be”
Jeff Thurston
Editor - Europe, Middle East, Africa and Russia
Vector 1 Media
jeffahurston@vector1media.com
Improvements in image analysis have enabled people to extract value from a
growing library of satellite imagery.
Removal of selective availability (SA) from the global positioning
system in 2000 represented a fundamental shift in
the use of GPS. This act immediately increased accuracy, lowered
costs and initiated the concept of GPS as a tool for everyday
navigation and positioning purposes.
I would consider Microsoft MapPoint as the first real consumer
mapping software. It imported your own data points,
put them on a map and could be used to determine travel
distances and
routes and so on, all
at a reasonable
price. This really
brought mapping to the first wave of masses, later to be followed
by Google.
The release of ESRI's ArcView Version 2.0 geographic information
system (GIS) software around 1990. With the shapefile
came openness and a proliferation of people writing
their own scripts. This meant people could tailor GIS to their
own needs. This really heralded a working desktop GIS ordinary
folks could buy and use, which had support and could
do quite a few things.
Establishment of the Open Geospatial Consortium
(OGC) mean that the geospatial community was talking
about interoperability and sharing of data between systems
very early on. If you look around many other industries
today you will not see such coordination. Even aside from
producing anything, the OGC has put harmonization on the
agenda for geospatial professionals and that has worked to
build capacity.

Google Earth has revolutionized how people share and
interact, connecting private spaces with each other, using
virtual globes. Microsoft is now perfecting this with exceptionally
sharp imagery and new visualization initiatives and
a host of products that will build out the operating system
into hardware platforms, incorporating spatial data.
Educational software for online delivery has greatly
impacted the geospatial industry. Much of this was developed
in the mid-1990s for course delivery over the internet.
This allowed for formal courses in geospatial subjects to be
taught and for students to interact. Professionals could teach
many people everywhere and students had a wider variety
of topics to discuss.
Shuttle Radar Topographic Mission (SRTM) data permitted
a global elevation data set of higher resolution. This impacted
spatial modeling processes such as those involving
hydrography and raised the value of image draping to a new
level.
With ORACLE company putting some spatial functionality
inside the database, this resulted in spatial analysis at the
business/IT interface immediately and represented a different
approach for spatial analysis. Microsoft SQL Spatial this
year will achieve similar functionality and include the ability
to link the Windows environment itself into the process.
A trend toward harmonization of data, more
sharing, easier sharing.The development of spatial
data infrastructure (SDI) and evolution of global spatial data
infrastructure (GSDI). More standards and increased collaboration.
A trend toward the internet in terms of delivery-federated
systems. Computers connecting to computers. The 'cloud' is
part of this, as are computing GRID. But Extract, Transform,
Load (ETL) is playing heavily into making this all happen.
The
trend toward sustainability and environment is on the
rise, supported by
geospatial related
legislation.
There is a
trend
to building infrastructure.
This means coupling CAD to GIS systems, but also
the use and application of technologies for supporting these;
like remote sensing, lidar and GPS. Overall then, a trend
toward higher levels of system technology integration.
With respect to 'emerging markets' the trends are more
local in their realization. However, these include:

The new geometries are
designed as individual data
types with OCC specifications,
i.e. as separate data
types (Figure 1). The two
major advantages of mapping
the conceptual model
into separate freeform data
types are - the data types are
clearly and explicitly
defined, and little redundant
information is stored since
every data type has its own
attribute. Adapted data
types can easily be inherited
from existing prototypes,
and functions on prototype
types will be also operational
for inherited types.
The implementation is
done in Oracle Spatial, but
the approach is applicable
for any DBMS. New data
types can be designed in
Oracle using natively supported
data types, such as
object types, REFs, VARRAYs,
and Nested tables. The userdefined
data types in Oracle
can be declared
using the SQL
statement CREATE
TYPE. PL/SQL,
Java or C++ can be
used to implement
the declaration.
In implementation,
Java
has been selected
because it supports
Oracle Spatial
well. The procedure for
creating data types using
Java can be divided into
three main steps: creating
Java classes, loading the
classes in Oracle spatial and
declaring the data types in
Oracle using the SQL statement
CREATE TYPE.
- A trend toward GPS systems and building cadastre
- A trend toward land use applications through remote sensing.
- A trend toward building capacity, helping people to understand
technology and developing goals. It should be kept in
mind that these trends do not track similar to traditional markets.
Emerging markets start with today's technology, thus
legacy issues are not often primary issues.
The key drivers for today's geospatial industry are: Adding business value.No matter what business (government)
you are in, if you are using geospatial technologies
or information, the goal remains – adding to the bottom line
through providing answers and solutions to the questions at
hand.
Quality: We are awash in data and the resolution of spatial
information is rising rapidly. Costs are decreasing for that
information, but,
we are faced with
still struggling to
know what is 'good'
information? We
need to understand why geospatial tools and information
are adding value and how we are going about measuring
that, quantifying it?
Another key driver is literacy. The geospatial industry can
only drive forward if people understand the value, what it
can do and why it is important.
Automation is a key driver. The idea being to take complexity
out of operation while maintaining or even expanding on
the background computing complexity – more is hidden.
In an application sense, the drivers are environment,
defence and urban planning.
Realising that earth observation satellites provide
pictures of the earth at different times and
resolutions, the opportunities are inherently connected to

re-visitation times and resolution. The processes of flooding,
plant growth, traffic movement, landscape change etc. are all
connected to these
two factors. Opportunities
surround
these issues, not
necessarily who
owns the satellite. We see many companies these days operating
internationally, as do customers.
While an important consideration, I think not. If
you give me a choice of service over quality of
data, I will take quality of data every time. The
Google model, in my view, is a homogenous model. It results

in a lot of similarity to many people, its wide appeal. For business
purposes
though, I would
want distinction,
difference and
uniqueness. Quality
data gives me more options to provide different services.
Tools that help me to create those opportunities would be a
selling point.
SDI is not a business model nor will it ever
be. It is a framework designed to integrate spatial
information that enable accessibility with
consistency and predictability. This goes back to data
quality however; consistent and dependable data will yield
consistent results,
which business
decision can begin
to depend upon due
to less uncertainty.

However, my thought is that we would be stretching our
wishes to think SDI are business tools for decision making.
Instead, think of SDI more like petrol in your car. You fill up
every time knowing the quality of petrol in the tank and your
engine will run dependably for a while – but where and how
you drive (the business) impacts the longevity of your car –
its resale value too. Do you drive sustainably!?
I think standardisation and interoperability in a
technical sense are largely resolved in the
geospatial community from a technical standpoint.
Most people can move or exchange different data.
But, standardisation and interoperability in conceptual
knowledge, practice and operations is not fully realised at
this time and

needs much more
work. If you talk
with architects,
you will find that
they do not wish to standardise because it sacrifices performance
they like open creative territory. How much order is a
good thing, as compared to high performance? It is a balance.
I think the publishing industry is changing
rapidly. The motivations for blogging are
different than those for creating a publication
which is more regular. However, it is becoming
increasingly difficult to ascertain fact from fiction, what is
useful and what is
non-useful as well
as connecting the
dots between
islands of knowledge

and efforts. The real impacts of the internet, I think, are
more around changing business processes, and quite a few
organisations have not adapted quickly. More capacity building
is needed and more experienced and knowledgeable people
need to participate and act as filters and aggregator's.