OpenSourceCOC2dec.ppt
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  • Who am i and introduce geoff Do you think using Linux would be harder or easier than using windows? This mornings plan Talk / Installation – Demo / Discussion Demo -i want a volunteer i dont speak to large groups of people so i am going to choose one of you for eye contact – choose a person – and smile In our When you leave here today i hope you will understand what is open source, why it is growing in popularity where it has come from and where its going and perhaps if you think its useful for us later ot have a dicussion on of it can have a place in solving problems that you face in your work or when someone suggest says we have got to do be able to do this better using technology but we have no money you say have you considered an open source alternative
  • . 1. Free Redistribution "Information doesn't want to be free. Information wants to be valuable." I first heard this gem from Larry Wall, creator of the Perl programming language. Like many other open-source software authors, from Linus Torvalds, creator of Linux, to Tim Berners-Lee and his spiritual descendants at the Apache web server project, Larry discovered that one way to make his information (i.e., his software) more valuable was to make it free. Larry was thus able to increase its utility not only for himself (because others who took it up made changes and enhancements that he could use), but for everyone else who uses it, because as software becomes more ubiquitous it can be taken for granted as a foundation for further work. The Internet (based on freely available software including TCP/IP, BIND, Apache, Sendmail and so on) demonstrates clearly just how much value can be created by the distribution of freely available software. 2. Source Code Analogy of car with bonet locked and a car mechanic qulaified to open it and change the carborator when it gets blocked up. 3 Authors ego's Free Redistribution Source Code Derived Works Integrity of The Author's Source Code No Discrimination Against Persons or Groups No Discrimination Against Fields of Endeavor Distribution of License License Must Not BE Specific to a Product License Must Not Restrict Other Software The License Must be technology-neutral http://www.opensource.org/docs/definition.php
  • Software and the writing of software is so important we all have to know it – a little like we all have to know how to read and write and that you can have people saying no you can see my code its private - mankind has progressed because of our ability to share scientific discoveries and that we must apply the same principles to the writing of software the ideas must be freely moved about if we are to progresss.
  • Excuse me for butting in here. I usually just listen. I agree with you that the lack of openEHR's implementation makes it questionable in that it is mostly theory rather than actual physical software. But remember, it is still in its infancy. OpenEHR website opened up only a few months ago. I myself would like to see others implementation and put it to test myself. What sets openEHR aside from others is some of fundamental ideas. Some of them are 1. a separation of knowledge from information. 2. archetypes provide a way to model almost any kind of data found in medicine.Data is becoming very complex in its structure. On the same note, once this data is encoded it can still be read 20 years from now. 3. OpenEHR gives the domain specialists(such as organizations, corporations, individuals) the ability to set standards without the complex knowledge of the underlying software or data store. This is very important in that the people who set standards often are experts in their field, however not experts with computers. This could lead to peer reviewed archetypes 4. In medicine their are many subspecialties and branches. For example, if you had an openEHR system in a hospital setting, I could use this system as a dentist by using customized archetypes for dentistry. In the same setting a neurosurgeon could use the system, as well as the ER doctor. We all have different needs for storing information. This is a good model for all diversity of needs. 5. OpenEHR uses a two level approach. This greatly simplifies the model. The single level just gets too big and complex. It also changes over timing making it difficult for everyone to stay in sync. This is a key point. In a single level approach, as we try to incorporate for either diversity in medicine or the mounting technology changes, our model gets huge. It gets so large that it is difficult to manage, expensive to manage, and again difficult to keep everyone in sync to the latest version. This is not necessary in a two level approach.

OpenSourceCOC2dec.ppt OpenSourceCOC2dec.ppt Presentation Transcript

  • © Blue Fountain Systems Ltd 2003
  • A Presentation on Open Source by Aidan McGuire Director [email_address]
  • Open Source Definition
    • Source Code
    • Free Redistribution
    • Integrity of The Author's Source Code
    • Derived Works (`popclient` by Carl Harris)
    • No Discrimination Against Persons or Fields of Endeavour
  • ..... Distribution of License
    • License Must Not BE Specific to a Product
    • License Must Not Restrict Other Software
    • License Must be technology-neutral source http://www.opensource.org/docs/definition.php
  • Open Source History
    • Free Software - Free speech, not free beer
    • Stallman / Larry Wall / Torvalds / Tim Berners-Lee & Eric Raymond `Release early. Release often. And listen to your customers` Eric Raymond
    • Free Software and Scientific Discoveries “You can and must understand computers now” Ted Nelson
  • Open Source Benefits
    • Collaboration
    • Survival of the fittest
    • `Given enough eyeballs, all bugs are shallow` Eric Raymond
    • Reaches the parts others beers can't reach
    • Public Data & The Peruvian Connection
          • http://www.aful.org/politique/perou/english/rescon_en.html
  • Open Source Myths
    • What are they?
  • Open Source in Business
    • Reliability
    • Cost
    • Control
    • Scalable & Multiplatform
  • Who is Supporting Open Source
        • IBM
        • RedHat
        • Novel - SuSe
        • HP
        • Sun Microsystems
  • Server Applications
      • Web Services
        • Apache / Zope
      • Database
        • MySQL / PostgreSQL
      • Firewalls
        • SeaWall
      • VPN's
        • FreeS/WAN
      • Mail Servers
        • Courier
        • Openexchange Server
  •  
  • Server Application Demonstration
    • Plone - Content Management
  • Client Applications
    • Mail Clients
      • Ximian Evolution
    • Browsers
      • Opera / Mozilla / Netscape
    • GNU
    • Office Productivity
      • Open Office
  • Client Application Demonstration
    • GNU Desktop and Open Office
  • Open Source in Public Sector
      • Canada: Genome Sciences
      • Germany: Dept of Interior
      • USA: NASA / DOD / NSA
      • Norway: Directorate of Public Management
      • UK: County Council's & Police Force & UK Gov Policy
        • Nottingham Council £10 per user per annum
  • Open Source in Business
    • Unilever
      • Unilever moving to Linux for Global Operations
    • IBM
      • Linux Spend US$1,000,000,000
    • Amazon
      • `Amazon.com made news recently with its migration to a Linux-based server system, a move the company revealed in an SEC filing in October. According to the filing, Amazon saved $17 million, cutting costs from $71 million to $54 million`
  • Open Source and Open Standards
    • Games
      • Tools
        • Operating System
          • Middleware
            • Applications
            • Where next?
  • Questions
  • Thank You