Emixa Mendix Meetup 11 April 2024 about Mendix Native development
Five Myths of Open Source
1. GAIA RESOURCES
Open Source
5 Myths
Andrew Dennison
Gaia Resources
Presented at SSSI Going Places, 29th March, 2012
2. What’s it all about?
Open Source vs Open Standards vs Open Data
“Open-source software is software whose source code
is published and made available to the public,
enabling anyone to copy, modify and redistribute the
source code without paying royalties or fees”
- Wikipedia
4. Overview
“Open source creates a license so that nobody can
ever improve the software."
5. Overview
“If programmers deserve to be rewarded for creating
innovative programs, by the same token they deserve
to be punished if they restrict the use of these
programs.”
10. Unreliable?
Oracle 11g vs PostgreSQL/PostGIS benchmarking
• PostGIS was faster in 10 of 13 queries – in most cases
much faster
11. Unreliable?
In 2011 Coverity Inc. reviewed the source code for
around 100 proprietary and open source products
and found……….
• Open Source = 0.45 bugs / 1000 lines
• Proprietary = 0.64 bugs / 1000 lines
23. Questions?
• If you want to know more, please contact me
andrew@gaiaresources.com.au
@andrew_dennison
(08) 9227 7309
0459 990 256
• Web site:
www.gaiaresources.com.au
Editor's Notes
General open source with a spatial twistBoth Positive and Negative MythsNot trying to convince everyone that open source is better and that they should dump their ESRI licenses
Lots of ‘open’ terms thrown around, but what do they meanOpen Data – Data licensing modelOpen Standards – Interoperability – WFS/WMS etcOpen Source – Software licensing model
Lots of historical conflict between open source and proprietary communities
Bill Gates
Richard Stallman – Creator of GNU, which is a foundation of LINUX
If you do a 30 second google search you get images like these
Let’s try to find some middle ground and look at some myths along the way
Lot’s of companies base there business around supporting open source productsOpenGeo do work at Landgate
Does that mean that PostGIS is better than Oracle – NO!
Scalability – Estimates are that Google has over 1M serversESRI– Over 80 open source components in ArcGISESRI promote a mixed model between open source and proprietary
It’s about products not softwareWhen you buy an ESRI license you get the software plus………….
The total product cost needs to be taken into accountDepends on your needs
Where’s the business model in open source if you give the software away
Proprietary – Pay for the software, get the other things for free (mostly)Open Source – Get the software for free, pay for the other things
Community based development = faster development cycle
There is a full open source stackIntegrates with proprietary stack (mostly)Depends on requirements
