There are two types of SLOC: Physical and Logical SLOC and 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. SLOC is a key input for estimating project effort and is also used to calculate productivity and other measurements. 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. Logical and physical SLOC are among the metrics generated by the toolset.

It implements a code counting framework published by the Software Engineering Institute (SEI) and adapted by COCOMO. The primary purpose is to support sizing software counts and metrics for historical data collection and reporting purposes. 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.Ĭenter for Systems and Software Engineering (CSSE) at the University of Southern California has developed and released a code counting toolset called the Unified Code Count (UCC), which ensures consistency across independent organisations in the rules used to count software lines of code. The size metric is used as an essential input for most of the cost estimation models such as SLIM, SEER-SEM, and PRICE True Planning for Software. It is not only a key indicator of software cost and time but also a base unit to derive other metrics for project status and software quality measurement. 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 available to the general public as open source code and can be compiled with any standard ANSI C++ compiler. The Unified Code Counter ( UCC) is a comprehensive software lines of code counter produced by the USC Center for Systems and Software Engineering. In-development GUI tool from the developer shown (currently unreleased).

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