<?xml version="1.0" encoding="UTF-8"?><!--RSS generated by Windows SharePoint Services V3 RSS Generator on 5/16/2012 4:45:06 PM--><?xml-stylesheet type="text/xsl" href="/RandyBlog/_layouts/RssXslt.aspx?List=64301fdb-1ef8-42dd-b75c-0797bfb941d2" version="1.0"?><rss version="2.0"><channel><title>Randy Armstrong's OPC UA Blog</title><link>http://lists.opcfoundation.org/RandyBlog</link><description>RSS feed for the Posts list.</description><lastBuildDate>Wed, 16 May 2012 21:45:06 GMT</lastBuildDate><generator>SharePoint CKS:EBE</generator><ttl>120</ttl><image><title>Randy Armstrong's OPC UA Blog</title><url>http://lists.opcfoundation.org/RandyBlog/_layouts/images/homepage.gif</url><link>http://lists.opcfoundation.org/RandyBlog</link></image><item><title>Crossing Firewalls with UA</title><link>http://lists.opcfoundation.org/RandyBlog/archive/2009/09/16/crossing-firewalls-with-ua.aspx</link><guid>/RandyBlog/archive/2009/09/16/crossing-firewalls-with-ua.aspx</guid><description><![CDATA[
Security is a key feature of UA but security requires that the Servers be able to publish their security requirements so Clients can know how to connect. UA makes this possible via the Discovery Services which have been discussed in prior posts. Unfortunately, the information that a Client needs t ... (More)]]></description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">OPCF02\randyarmstrong</dc:creator><pubDate>Wed, 16 Sep 2009 23:56:00 GMT</pubDate><category domain="http://lists.opcfoundation.org/RandyBlog/archive/tags/UA/default.aspx">UA</category><category domain="http://lists.opcfoundation.org/RandyBlog/archive/tags/Coding/default.aspx">Coding</category><category domain="http://lists.opcfoundation.org/RandyBlog/archive/tags/Security/default.aspx">Security</category></item><item><title>Betas and Community Software Development</title><link>http://lists.opcfoundation.org/RandyBlog/archive/2009/09/02/community-vs-commerical-software-development.aspx</link><guid>/RandyBlog/archive/2009/09/02/community-vs-commerical-software-development.aspx</guid><description><![CDATA[

A comment on the v1.1 SDK by Mike Dillamore over at OPC Programmer's Connection prompted me to think about the differences between developing community software and developing commercial software. When developing commercial software the development team works privately on the codebase during dev ... (More)]]></description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">OPCF02\randyarmstrong</dc:creator><pubDate>Wed, 02 Sep 2009 00:15:00 GMT</pubDate><category domain="http://lists.opcfoundation.org/RandyBlog/archive/tags/Coding/default.aspx">Coding</category><category domain="http://lists.opcfoundation.org/RandyBlog/archive/tags/UA/default.aspx">UA</category></item><item><title>A Roadmap to UA Downloads</title><link>http://lists.opcfoundation.org/RandyBlog/archive/2009/08/31/a-roadmap-to-ua-downloads.aspx</link><guid>/RandyBlog/archive/2009/08/31/a-roadmap-to-ua-downloads.aspx</guid><description><![CDATA[

After a long hiatus I finally have some time to start blogging again. This time I hope be more frequent in my postings. A lot has happened since my last post including the formal release of V1.0 of the UA SDK and the most recently posted V1.1 Beta. Although these things are good it does mean the ... (More)]]></description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">OPCF02\randyarmstrong</dc:creator><pubDate>Mon, 31 Aug 2009 12:21:00 GMT</pubDate><category domain="http://lists.opcfoundation.org/RandyBlog/archive/tags/UA/default.aspx">UA</category></item><item><title>UA Discovery - The Basics</title><link>http://lists.opcfoundation.org/RandyBlog/archive/2009/02/10/ua-discovery-the-basics.aspx</link><guid>/RandyBlog/archive/2009/02/10/ua-discovery-the-basics.aspx</guid><description><![CDATA[

Previous posts discussed how every UA application instance has an X509 certificate assigned to it and how UA Security Policies describe standard security configurations for UA Server endpoints. What was not mentioned was how this information is distributed to Client applications. This is an impo ... (More)]]></description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">OPCF02\randyarmstrong</dc:creator><pubDate>Tue, 10 Feb 2009 21:34:00 GMT</pubDate></item><item><title>The UA Security Model - Keeping it Simple is the Policy</title><link>http://lists.opcfoundation.org/RandyBlog/archive/2009/02/03/the-ua-security-model-keeping-it-simple-is-the-policy.aspx</link><guid>/RandyBlog/archive/2009/02/03/the-ua-security-model-keeping-it-simple-is-the-policy.aspx</guid><description><![CDATA[

Configuring application security for a typical Web Services application is extremely complex because there are a huge number of configuration options that control things such from the cryptography algorithms used to the order of elements in the message. This flexibility is great for people who s ... (More)]]></description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">OPCF02\randyarmstrong</dc:creator><pubDate>Tue, 03 Feb 2009 11:54:00 GMT</pubDate></item><item><title>The UA Security Model - The Basics</title><link>http://lists.opcfoundation.org/RandyBlog/archive/2009/01/28/the-ua-security-model-the-basics.aspx</link><guid>/RandyBlog/archive/2009/01/28/the-ua-security-model-the-basics.aspx</guid><description><![CDATA[
In the past OPC specifications were silent on security and application developers were expected to use the operating system infrastructure to secure their applications. What this meant in practice is most OPC systems were insecure by default. The industry has moved on and such policies are no long ... (More)]]></description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">OPCF02\randyarmstrong</dc:creator><pubDate>Wed, 28 Jan 2009 09:12:00 GMT</pubDate></item><item><title>The UA Specification Rendered in Angle Brackets</title><link>http://lists.opcfoundation.org/RandyBlog/archive/2009/01/25/the-ua-specification-rendered-in-angle-brackets.aspx</link><guid>/RandyBlog/archive/2009/01/25/the-ua-specification-rendered-in-angle-brackets.aspx</guid><description><![CDATA[

UA is a specification that is based on the web service model. This means that all of the services defined in the UA specification are described by a WSDL which can be used by any application that understands WSDLs. The UA specification also defines a number of data types that can be exchanged vi ... (More)]]></description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">OPCF02\randyarmstrong</dc:creator><pubDate>Sun, 25 Jan 2009 02:14:00 GMT</pubDate></item><item><title>Building UA Applications from the Ground Up</title><link>http://lists.opcfoundation.org/RandyBlog/archive/2009/01/21/building-ua-applications-from-the-ground-up.aspx</link><guid>/RandyBlog/archive/2009/01/21/building-ua-applications-from-the-ground-up.aspx</guid><description><![CDATA[

After 5 years of development UA is about to be released. The 1.01 version for the UA core specifications (Parts 1 through 8)  should be posted in a couple weeks. The IEC 62541 Working Group has just approved the committee draft which means UA is well on the way to becoming an IEC specification.  ... (More)]]></description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">OPCF02\randyarmstrong</dc:creator><pubDate>Thu, 22 Jan 2009 01:41:00 GMT</pubDate></item></channel></rss>
