Other objectives of using software metrics are listed below. And ensuring maintainable source code relies on a number of factors, such as testability and understandability. However, physical SLOC measures are sensitive to logically irrelevant formatting and style conventions, while logical SLOC is less sensitive to formatting and style conventions. CS1 maint: BOT: original-url status unknown (, Learn how and when to remove these template messages, Learn how and when to remove this template message, "Quantifying the Benefits of Using Function Points", "More Than a Gigabuck: Estimating GNU/Linux's Size", "Counting potatoes: the size of Debian 2.2", "Debian Wheezy: US$19 Billion. By the same token, a hand-coded custom GUI class could easily be more demanding than a simple device driver; hence the shortcoming of this metric. Ubiquitous measure: LOC measures have been around since the earliest days of software. Another increasingly common problem in comparing SLOC metrics is the difference between auto-generated and hand-written code. Small utilities may be developed for counting the LOC in a program. Where E= Efforts (Person Per Month) DOC=Documentation (Number of Pages) D = Duration (D, in months) L = Number of Lines per code And this is 50K-LOCs. Context Source code metrics are essential components in the software measurement process. Many[2] have advocated the use of function points instead of SLOC as a measure of functionality, but since function points are highly correlated to SLOC (and cannot be automatically measured) this is not a universally held view. For business: A: Number of man-hours. Scope for automation of counting: since line of code is a physical entity, manual counting effort can be easily eliminated by automating the counting process. Are data declarations included? In regards to software project cost and underestimation, it is ... Code metrics ! Tracking and reporting of productivity and defect rates poses a serious problem in this case, since defects cannot be attributed to a particular language subsequent to integration of the system. 4 physical lines of code (LOC): is placing braces work to be estimated? 2. Code coverage. Many empirical software engineering studies show that there is a need for repositories where source codes are acquired, filtered and classified. Motivations for using metrics in software engineering ! How big a project is it? As you might imagine, every source had their own theories about which metrics mattered most. What happens if a statement extends over several lines? towards the end of a project, if the code becomes more stable, one should see that fewer lines of code are modified per unit of time. The work involved in creating this code cannot reasonably be compared to the work necessary to write a device driver, for instance. Smart contracts’ source codes have been validated by EtherScan, and each contract comes with its own associated software metrics as computed by the freely available software PASO. Text lines are no longer limited to 80 or 96 columns, and one line of text no longer necessarily corresponds to one line of code. These Multiple Choice Questions (MCQ) should be practiced to improve the Software Engineering skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations. The metrics variation analysis presented in the previous section examined the effect over the source code metrics after source code refactoring. Problems with multiple languages: in today's software scenario, software is often developed in more than one language. An experienced developer may implement certain functionality in fewer lines of code than another developer of relatively less experience does, though they use the same language. At the time that people began using SLOC as a metric, the most commonly used languages, such as FORTRAN and assembly language, were line-oriented languages. Thus, SLOC can be effective in estimating effort. Unlike lines of code, the number of function points will remain constant. A similar study was later made of Debian GNU/Linux version 2.2 (also known as "Potato"); this operating system was originally released in August 2000. Process is placed at the centre of the triangle connecting three factors (product, people, and technology… Using software process metrics, software engineers are able to assess the efficiency of the software process that is performed using the process as a framework. Before writing this article, we digested the metrics proposed by the top 20 Google results in the domain of software metrics. Once measures are collected they are converted into metrics for use. In the PBS documentary Triumph of the Nerds, Microsoft executive Steve Ballmer criticized the use of counting lines of code: In IBM there's a religion in software that says you have to count K-LOCs, and a K-LOC is a thousand lines of code. depends on previous processing (S, Number of components having single entry and exit (S. Measures defined for data and control flow coupling are listed below. A directory of Objective Type Questions covering all the Computer Science subjects. Metrics for design modeling allows developers or software engineers to evaluate or estimate quality of design and … How many K-LOCs did you do? Difference in languages: consider two applications that provide the same functionality (screens, reports, databases). /* Now how many lines of code is this? Metrics are used in different scenarios like analyzing model, design model, source code, testing, and maintenance. Software measurement is a titrate impute of a characteristic of a software product or the software process. Although, a lot of researches analyze the relation of source code metrics to other objective measures, only a few studies deal with their expressiveness of subjective feelings of … Ugh! These metrics can be computed for different stages of SDLC. These software development metrics assess defects and vulnerabilities. Using lines of code to compare a 10,000-line project to a 100,000-line project is far more useful than when comparing a 20,000-line project with a 21,000-line project. During the last few years, Ethereum block explorer services have emerged as a popular project to explore and search Ethereum blockchain data such as transactions, addresses, tokens, smart-contracts' source code, prices and other activities …
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