Difference between revisions of "Glossary"

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This glossary explains terms that
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* are specific to the GMOD project, or
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* are computing terms that are used in the GMOD project.
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This glossary does '''not''' define biology terms.
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=== AJAX ===
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AJAX is a web user interface technology used in some [[GMOD Components]]. It is used to provide a richer user experience than was typically available during the first 10 years of the web. AJAX stands for Asynchronous Javascript and [[#XML|XML]].
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See Also:
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* [[:Category:AJAX]]
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=== CVS ===
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''CVS'' is the ''source code control'' system used by most of GMOD.  Source code control systems, also known as ''revision control'' or ''version control'' systems are used to record changes to computer files.
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GMOD's main source code repository is at [http://gmod.cvs.sourceforge.net/ SourceForge].  [[CVS Access]] explains how to both download and update the main GMOD repository at SourceForge.
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See Also:
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* [http://ximbiot.com/cvs/ CVS Home Page]
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* [[CVS Access]] - CVS in GMOD.
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=== DAS ===
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See [[Distributed Annotation System]]
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=== Database ===
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A ''database'' can be any set of organized data that is readable by a computer.  It can be anywhere from an implementation of a [[#Database Schema|database schema]] in a particular [[#Database Management System|database management system]] to regular files that have a defined format.
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For example, the ''database'' behind the FlyBase web site contains data on drosopholids, and uses the [[Chado]] schema and the [[PostgreSQL]] [[#Database Management System|database management system]].
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See also:
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* [[Databases and GMOD]]
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* [[#Database Management System|Database Management System]]
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* [[#Database Schema|Database Schema]]
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=== Database Management System ===
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''Database management systems'' (DBMSs) are software systems that can manage data. [[PostgreSQL]], [[MySQL]], Oracle and Sybase are all examples of DBMSs. DBMSs are containers of databases. That is, they are the systems that manage databases, which is distinct from the data that they manage.
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Most DBMSs are ''relational'', which is a particular way of representing data.  All DBMSs that GMOD is concerned with are relational, so GMOD uses the terms''database management system'' and ''relational database management system'' (RDBMS) interchangeably.
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See also:
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* [[Databases and GMOD]]
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* [[#Database|Database]]
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* [[#Database Schema|Database Schema]]
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* [[MySQL]]
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* [[PostgreSQL]]
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=== Database Schema ===
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A ''database schema'' is the design of a particular database, independent of its contents.  [[Chado]] is an example of a ''database schema''.  Designs (like Chado) can be reused across multiple databases.
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See also:
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* [[Databases and GMOD]]
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* [[#Database|Database]]
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* [[#Database Management System|Database Management System]]
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=== DBMS ===
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See [[#Database Management System|Database Management System]].
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=== Gene Finder Format ===
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See [[#GFF|GFF]].
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=== General Feature Format ===
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See [[#GFF|GFF]].
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=== GFF ===
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If you get into the more technical side of GMOD, loading databases, you will come across this term. It refers to a tab-delimited file format for storing sequence annotations (curiously, the acronym has different definitions, '''G'''ene '''F'''inder '''F'''ormat, or '''G'''eneral '''F'''eature '''F'''ormat). Here is an example:
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test.fa      RepeatMasker    similarity      238    289    15.4    +      .      Target "Motif:(TA)n" 2 53
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The line above describes a match to a sequence motif (TAn) on a sequence contained in the "file.fa", where the match goes from position 238 to position 289 on the "+" strand.
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One encounters GFF files frequently in the GMOD world. It's used as interchange format, so a script or an application may create GFF as output and some other script or application may load this GFF into a database. Or it may the database itself. There are ways to create databases directly from GFF files, though it turns out that these work well only with smaller sets of data. See [[bp:GFF|GFF]] for more information.
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=== Java ===
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''Java'' is arguably the world's most popular programming language but it is not as popular for command-line work on Unix as [[#Perl|Perl]]. It's encountered in GMOD primarily as a language to construct user interfaces (e.g. [[Apollo]]).
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See also:
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* [[:Category:Java|Category:Java]] - GMOD pages tagged as related to Java.
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=== Linux ===
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''Linux'' is an open source [[#Operating System|operating system]] that is based on he [[#Unix|Unix]] operating system.  Linux is the default operating system for GMOD.
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See also:
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* [[Computing Requirements]]
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* [[:Category:Linux]] - List of GMOD pages tagged as related to Linux.
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=== Middleware ===
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''Middleware'' is software that connects other software components so they can talk together. You can think of it as project plumbing. Like plumbing, it is hard to do well, and people take it for granted until it does not work.
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See also:
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* [[:Category:Middleware]] - List of GMOD pages tagged as related to middleware.
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=== Operating System ===
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An ''operating system'' (OS) is the software that controls a computer and manages the sharing of resources on that computer.  Example operating systems are [http://www.microsoft.com Microsoft Windows] and [[#Linux|Linux]].
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See also:
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* [[Computing Requirements]]
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=== OS ===
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See [[#Operating System|Operating System]].
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=== Perl ===
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''Perl'' is the programming language most used in the bioinformatics realm, and it is the language  most used by GMOD developers. It is well-suited to text and data processing and is also characterized by an extensive open source library, so it's highly functional. Many of GMOD components use [[BioPerl]], a bioinformatics toolkit written in Perl.
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Some parts of GMOD, like [[GBrowse]], can be extended or customized using Perl but beginners' skills in Perl is sufficient for this work.
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See also:
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* [http://www.perl.org/ Perl Home Page]
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* [http://cpan.perl.org/ Perl's open source library repository.]
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* [[:Category:Perl]] - GMOD pages tagged as related to Perl.
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=== RDBMS ===
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See [[#Database Management System|Database Management System]].
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=== Relational Database Management System ===
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See [[#Database Management System|Database Management System]].
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=== Schema ===
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See [[#Database Schema|Database Schema]]
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=== SQL ===
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''SQL'' is a standard query language used with relational [[#Database Management System|database management systems]] (DBMSs).  Is is used to update and retrieve data that is in a database.
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SQL is generally similar for different DBMSs but varies in many details from one DBMS to another.
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=== Unix ===
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''Unix'' is a group of [[#Operating System|operating systems]] that are descended from the original Unix operating system developed in the 1970s.  This includes Solaris, HP-UX, [[#Linux|Linux]], [[:Category:Mac OS X|Mac OS X]], and many others.
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=== XML ===
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''XML'' is an acronym for <em>e'''X'''tensible '''M'''arkup '''L'''anguage</em>,  a data format used primarily for sharing data.  It looks similar to HTML, but has a much tighter syntax than does HTML.
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See also:
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* [[:Category:XML|Category:XML]]
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* [[XORT]]
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[[Category:Help]]
 
[[Category:Help]]
 
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[[Category:Computing]]

Revision as of 01:34, 25 May 2008

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