https://pickwiki.org/api.php?action=feedcontributions&feedformat=atom&user=LadybridgePickwiki - User contributions [en]2026-04-28T20:20:45ZUser contributionsMediaWiki 1.43.0https://pickwiki.org/index.php?title=OpenQM&diff=2542OpenQM2015-03-17T10:21:17Z<p>Ladybridge: Updated</p>
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<div>OpenQM is the full name of the multivalue database product more commonly known simply as [[QM]] produced by UK based Ladybridge Systems.<br />
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The "Open" refers to the availability of an open source version released under version 2 of the General Public Licence (GPL). This was released to allow software developers to contribute new ideas to the multivalue model by submitting changes that might be incorporated into the master source. In return, these developers would gain the contributions of other users.<br />
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The cooperative development model did not catch on with developers and the open source version was discontinued at release 2.6-6 (November 2007). This version remains available and still fulfills the role for which it was released.<br />
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The commercial QM platform is widely used and under continual development by Ladybridge Systems.<br />
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In 2009, a group of open source developers created a fork of the open source version under then name ScarletDME. Ladybridge Systems has no involvement with this version.<br />
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Links:<br />
* All software and docs available from links starting here: http://www.openqm.com<br />
* Here's the FLOSS project forum: http://groups.google.com/group/openqm-opensource<br />
* The commercial product forum: http://groups.google.com/group/OpenQM</div>Ladybridgehttps://pickwiki.org/index.php?title=QM&diff=2541QM2015-03-17T10:02:11Z<p>Ladybridge: Bring up to date</p>
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<div>A very low cost multivalue system by UK based Ladybridge Systems. QM has integrated technologies such as object oriented programming, exception handling and support for arbitrarily multi-dimensional data into the familiar multivalue environment.<br />
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The correct name of the product is [[OpenQM]] but everyone abbreviates it to QM in general reference. There is a misbelief that the name QM refers to the commercial product and [[OpenQM]] to the open source version. The Open in [[OpenQM]] simply refers to the fact that there is an open source version available for developers who want to experiment with ideas for possible inclusion in the commercial product..<br />
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QM is based on the "Information style" multivalue model, very much like [[UniVerse]], Unidata, etc but has options to select "Pick style" compatibility. The QMClient API gives access to QM from VB, C, Excel VBA, Java, PHP, etc. [[AccuTerm]] is bundled with commercial licences.<br />
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QM uses a high performance, self-tuning dynamic hashed file system so there is no need for resizing. (Some QM users do not even have a system administrator.) The hashed file system is "binary clean" in that it has no reserved characters and can therefore store binary data such as bit mapped images. There are also "directory files" - much like UV's type 19 - for data exchange with the outside world.<br />
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Other key features include support for 32/64 bit environments, IPV6 networking, the Virtual File System for access to external data stores, and Unicode support.<br />
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QM has a very low resource usage both in memory and processor power. It is available for all current versions of Windows, most Linux variants, Mac, AIX, Solaris (Intel) and others.<br />
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For more information: http://www.openqm.com/</div>Ladybridge