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Unified Code Count (UCC)
The Unified Code Counter (UCC) is a comprehensive software lines of code counter produced by the (USC Center for Systems and Software Engineering ). It is available to the general public as open source code and can be compiled with any ANSI standard C++ compiler.
==Introduction==
One of the major problems in software estimation is sizing which is also one of the most important attributes of a software product. It is not only the key indicator of software cost and time but also is a base unit to derive other metrics for project status and software quality measurement. The size metric is used as an essential input for most of cost estimation models〔(【引用サイトリンク】 Software development cost estimation approaches: A survey ); (【引用サイトリンク】 Software Cost Estimation with COCOMO II )〕 such as (COCOMO ), (SLIM ), (SEER-SEM ), and (PRICE TruePlanning for Software ). Although source lines of code or SLOC is a widely accepted sizing metric, in general there is a lack of standards that enforce consistency of what and how to count SLOC.
(Center for Systems and Software Engineering (CSSE) ) at the University of Southern California has developed and released a code counting toolset called the Unified CodeCount (UCC), which ensures consistency across independent organizations in the rules used to count software lines of code. The primary purpose is to support sizing software counts and metrics for historical data collection and reporting purposes. It implements a (code counting framework ) published by the (Software Engineering Institute (SEI) ) and adapted by COCOMO. Logical and physical SLOC are among the metrics generated by the toolset. SLOC refers to Source Lines of Code and is a unit used to measure the size of software program based on a set of rules.〔(【引用サイトリンク】 Software Size Measurement: A Framework for Counting Source Statements )〕 SLOC is a key input for estimating project effort and is also used to calculate productivity and other measurements. There are two types of SLOC: physical and logical sloc. Physical SLOC (PSLOC)– One physical SLOC corresponds to one line starting with the first character and ending by a carriage return or an end-of-file marker of the same line. Blank and comment lines are not counted. Logical SLOC (LSLOC)– Lines of code intended to measure “statements”, which normally terminate by a semicolon (C/C++, Java, C#) or a carriage return (VB, Assembly), etc. Logical SLOC are not sensitive to format and style conventions, but they are language dependent.
The Unified CodeCount(UCC) differencing capability allows the user to count, compare, and collect logical differentials between two versions of the source code of a software product. The differencing capability allows users to count the number of added/new, deleted, modified, and unmodified logical SLOC of the current version in comparison with the previous version.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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