For what it's worth: I cannot speak about FOSS in general, but for
raster servers I dare to take position.
Open-source rasdaman repeatedly has been reported to have a performance
way superior to ArcSDE.
Some more voices (look at the Oracle one!):
“world leading technology." -- Aerovista France (market survey, 2004)
“I am not easy to impress, but this is unique." -- Eng. Hans Jacoby,
Infrastructure Management, German Railways
“Most favourable tool for Data Mgmnt Services" -- NIMA (USA) Pathfinder
evaluation 2003; >700 vendors invited
“Impressive software - Oracle will never do anything that elaborate in
functionality and architecture." -- Jeffrey Xie, Senior Tech. Staff,
GeoRaster, Oracle USA
"Your performance continues to amaze me." -- David Adler, Senior
Database Engineer, IBM USA
"most comprehensive implementation" -- Rona Machlin, ACM SIGMOD, 2007
Starting this fall rasdaman will be integrated with GDAL (works
already), MapServer, PostGIS. Rasdaman can exploit multiple processors
and can be distributed (free version) and supports transparent tape silo
access (commercial version). Installations grow by just adding the new
compute nodes and editing a configuration script. Multi-Petabyte
scalability is not an issue.
As for FOSS standards support, your folks may want to have a look at
www.earthlook.org which gives demos of 1-D to 4-D earth science use
cases, all based on OGC standards.
I myself am leading the raster-relevant working groups within OGC, plus
editor of currently 9 specification documents. In this capacity I know
that FOSS is of high importance to OGC and receives high attention
there. The forthcoming WCS 2.0 standard (adoption vote ends by August
17) will have open-source rasdaman as its reference implementation. We
already have done first steps on the way to make sure the specification
is implementable and scalable. BTW, WCS 2.0 will rely on a unified
coverage model which allows coverages to float between services relying
on different OGC standards, such as WPS, WCS, SWE Common, GML.
HTH - best of luck,
Peter
On 08/02/2010 12:31 AM, Ravi wrote:
Some so called SDI experts feel that FOSS SDI cannot perform at-par with
Proprietary SDI.
Please provide examples to fight a case from an Indian state which
swears by Free and Open Source Software. We can never expect a better
level playing field.
Kerala - India
Here are some excerpts from a document that has false claims
supporting Proprietary Software.
However, it is worthwhile to mention here that the OSS (Open Source
Software) does not match the advanced functionalities of many of the
commercial (proprietory) software that is in the market. Image
processing and analysis capabilities of the open source software is
not comparable to the commercial software when one require to carry
out advanced data manipulations, image fusion, 3D modeling,
ortho-correction, auto-georeferencing, stereo-image/air photo
interpretation (PROBABLY REFERRING TO GRASS), advanced geospatial
analysis etc., In such cases, certain proprietary software become an
integral part of the Spatial Data Infrastructures, which can not be
avoided. At a later stage the some of the proprietary software need to
be purchased.
It is a well known fact that web portal that run with OSS are neither
OGC-compliant nor
interoperable(PostGIS and Webservers to react). At the present
juncture it is only possible to establish the KSDI Geoportal
with the available COTS enterprise software.
The detailed PDF document will be emailed on demand.
This is a case that has the potential to set trends in India. Hope to
have a good discussion such that we can sum it up and present at a
meeting being conducted on August 11th 2010, to settle the issue.
Ravi Kumar
--
Dr. Peter Baumann
- Professor of Computer Science, Jacobs University Bremen
www.faculty.jacobs-university.de/pbaumann
mail: [email protected]
tel: +49-421-200-3178, fax: +49-421-200-493178
- Executive Director, rasdaman GmbH Bremen (HRB 147737)
www.rasdaman.com, mail: [email protected]
tel: 0800-rasdaman, fax: 0800-rasdafax, mobile: +49-173-5837882
"Si forte in alienas manus oberraverit hec peregrina epistola incertis ventis
dimissa, sed Deo commendata, precamur ut ei reddatur cui soli destinata, nec preripiat
quisquam non sibi parata." (mail disclaimer, AD 10xx)
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