Telelogic was founded in 1983 as a research and development arm of televerket, the swedish department of telecom now part of teliasonera. Once these modules are found, logiscope provides you with valuable information based on software metrics and graphs to. It was later acquired by ibm rational, and exists under the ibm software group telelogic had operations in 22 countries and had been publicly traded since 1999. The ministry of international trade and industry has launched the sigma project, which calls for computerizing the software process and industrializing and computerizing software production. With applications for all of the main operating software platforms, an array of device compatibility personal or rugged and flexibility where integration with back office solutions is concerned logiscope is truly versatile. Not only is it the most intuitive logic analyzer available, the triggering is so powerful youll be able to count the hair on your bug.
Software quality is generally characterized by several factors which reveal the degree of success of the software developed and its future maintainability. Oscium logiscope, 100 mhz ipad logic analyzer, 16 channels. Camscope is a multithreaded program for acquiring and quantitatively analyzing images from an iidccompliant firewire camera. Measuring software maintainability is nontrivial and there exists no single metric to measure it accurately. Qualitychecker in logiscope contains the definition of. Measuring and monitoring maintainability is a must for missioncritical applications where change is driven by tight timetomarket. Some people are more flexible than others, and some pieces of software are more maintainable than others. Zhou determines maintainability measures as i a managerial assessment to quantify the cost of maintaining existing software systems, ii as a quality assessment and control mechanism to drive software development efforts, and as iii a mechanism to enforce maintainability standards prior to acceptance andor delivery 26. Adherence to such guidelines limits the influence of those aspects which can invalidate the models assumed for analytical. It was assumed that more lines of code implied more complex programs, which in turn were more likely to have errors. This definition suggests another reason why maintainability is important. Thus, producing software that is easy to maintain may potentially save large costs. Modifications may include corrections, improvements or adaptation of the software to changes in environment, and in requirements and functional specifications. Toward software measurement and quality analysis of marf and.
The maintainability index is calculated with certain formulae from linesofcode measures, mccabe measures and halstead complexity measures. The qualitychecker module in rational logiscope offers a quality model quality reference. In software engineering, these activities are known as software maintenance cf. Links to all the software youll need to start using your proscope digital microscopes and microscope cameras all in one place. Design guidelines for reliability, maintainability, and. Software product measurement for supplier evaluation. Sep 03, 2019 anticipate and diagnose problems by providing information based on software metrics and graphs define software metrics to track logiscope quality characteristics and ensure logiscope objectives improve maintainability and reliability by locating errorprone modules and providing valuable information based on software metrics to help you. Lessons learnt from gauging software metrics of cabin. Besides a wide range of builtin configurable standard protocols, it is easily extendible to support specific custom. Youscope allows to easily automatize complex microscopy protocols using an userfriendly graphical interface. Logiscope a tailored mobile delivery management system.
Logiscope article about logiscope by the free dictionary. Techniques for product assessment product metrics there is a wide availability of metrics for software products in the literature. It provides an integrated environment for performing quantitative video microscopy for teaching laboratories. Logiscope transforms an iphone, ipad or ipod into a 100mhz, 16 channel logic analyzer. Our website provides a free download of telelogic logiscope 6. Once these modules are found, logiscope provides you with valuable information based on software metrics and graphs to help you anticipate and diagnose problems. The literature shows several efforts to characterize and quantify software maintainability. Kalimetrix 26 rue romain rolland 31502 ramonville saint agne france tel. Download logiscope in the app store and test drive the interface for free. Software maintainability is defined in the ieee standard glossary of software engineering terminology as the ease with which a software system or component can be modified to correct faults, improve performance or other attributes, or adapt to a changed environment. The history of software metrics began with counting the number of lines of code loc.
Osqr video what is software maintainability, and why. Accurate and practical software maintainability prediction enables organizations to effectively manage their maintenance resources and guide maintenancerelated decision making. Satisfaction is influenced by the users perception of properties of the software product such as those measured by external metrics and by the users perception of the efficiency, productivity and safety in use. Software quality model for maintainability analysis. Assessing software product maintainability based on classlevel. Maintainability is described by the 4 criteria we gave as examples above. Improve maintainability and reliability by locating errorprone modules and providing valuable information based on software metrics to help you anticipate and diagnose problems logiscope rule checker helps you. Taulogiscope is designed to automate activities associated with software quality assurance, check software under development against corporateindustry rules and standards, analyze the software code for errorprone sections, provide measurements of test coverage, and improve the quality and maintainability of legacy software. Each criterion is associated with a group of metrics and threshold for those metrics minimum value and maximum value accepted. Senior software qa test developer engineerselfdriving car at nvidia. The most frequent installation filenames for the software are. Im tired of quality metrics in my group revolving only around number of bugs and code coverage. Maintainability and flexibility at the software level are of predominant importance to drive innovation at the business process level.
Maintainability the capability of the software product to be modified. Note satisfaction is influenced by the users perception of. For this reason, many applications are replaced simply because the overhead to modify them becomes prohibitive. Metrics for measuring the effectiveness of softwaretesting tools. This has to be supported by analytical investigations chapters 2, 4, and 6 as well as by design guidelines. Youscope is a free, opensource microscope control software compatible with most presentday automized microscopes. However, software metrics have evolved well beyond the simple measures introduced in the 1960s. Improve software engineering practices and helps developers achieve the.
The mapping of draft standards work in the area of product quality measurement to industry practice has lead to a discussion on the importance of the previous knowledge of the design and support. How to effectively define and measure maintainability. Telelogic ab was a software business headquartered in malmo, sweden. Ability of a computer program to be retained in its original form, and to be restored to that form in case of a failure. Pdf lessons learnt from gauging software metrics of cabin. I define maintainable software as software for which it is easy to develop and deploy changes with minimal risk and impact to existing users.
Telelogics taulogiscope puts qa in developers hands adtmag. It identifies a set of software measures based on correlations published in empirical studies. Improve maintainability and reliability by locating errorprone modules and providing valuable information based on software metrics to help you anticipate and diagnose problems. Johnson space center houston, texas todd gunn, tuan pham, and ron ricaldi loral space information systems houston, texas national aeronautics and space administration. It was later acquired by ibm rational, and exists under the ibm software group. Logiscope qualitychecker makes possible to evaluate the maintainability factor of a group of source files. Software that is written without maintainability in mind requires about four times as much effort to maintain than it did to develop. Logiscope locates the errorprone modules that are responsible for most of the errors in your software.
However, existing definitions of maintainability, such as the halstead volume, mccabes cyclomatic complexity. Lessons learnt from gauging software metrics of cabin software in. Telelogic ab, the swedishbased supplier of software development tools for the communications industry, has released its latest quality assessment environment, telelogic tau logiscope 5. Ibm rational logiscope is a software quality assurance qa tool that automates static code analysis. Telelogics taulogiscope puts qa in developers hands. In some cases, maintainability involves a system of continuous improvement learning from the past in order to improve the ability to maintain systems, or improve reliability of systems based on maintenance experience. Developing maintainable software software sustainability. This document is a first step towards the construction of a maintainability prediction model. No matter whether you are a small courier, a major logistics service provider, or manufacturer logiscope can add significant value to your business. Henry, objectoriented metrics that predict maintainability, journal of systems and software, vol. The importance of maintainable software basil vandegriend.
Within the software architecture literature, the terms maintainability and modifiability. However iso 9126 standard doesnt specify the metrics to be used and the associated thresholds. Maintainability is a multifaceted quality attribute each of the facets must be analyzed to objectively measure it. Toward software measurement and quality analysis of marf and gipsy case studies a. Software metrics, halstead measure, maintainability, modifiability, software architecture, software deterioration. Software complexity analysis and software reliability estimation and prediction alice t. The aim of our study is to investigate how classlevel measures of structural properties can be used to assess the maintainability of a software product as a whole. Closely related concepts in the software engineering domain are evolvability, modifiability, technical debt, and code smells. Assessing software product maintainability based on classlevel structural measures. Every single business around the world takes advantage of modern technology to streamline and facilitate operations in their company. Toward software measurement and quality analysis of. In telecommunication and several other engineering fields, the term maintainability has the following meanings.
Appendix e identifies a number of specific dmsms managementrelated questions for use in support of las. The most widely accepted propose the use of a polynomial regression model where regression analysis is used as a tool to explore the relationship between software maintainability and software metrics 25, 26. Automatic code analysis with logiscope products kalimetrix. Can anyone recommend a good way of objectively measuring maintainability of a piece of code or an application why maintainability.
However, assessing the maintainability of existing software and deriving. However, existing definitions of maintainability, such as the halstead volume, mccabes cyclomatic complexity or the sei maintainability index provide a very poor understanding of what maintainability is how it. Logiscope is an allencompassing realtime mobile proof of delivery pod and logistics management application, designed to facilitate all aspects of the logistics process and provide all necessary information at the right time in the right context from a single mobile application. Jyothi mudur senior software qa test developer engineer. Ibm rational logiscope rulechecker software subscription and support reinstatement 1 year overview and full product specs on cnet. Maintainability is a measure of how hard or easy it is to change a piece of software, just like flexibility is a measure of how hard or easy it is for someone to adapt to new circumstances. Our builtin antivirus checked this download and rated it as 100% safe. Assessing software product maintainability based on class. Driver delivery manifest proof of delivery and collection delivery and return management vehicle routing. Define software metrics to track program quality characteristics and ensure quality objectives. Tau logiscope is designed to automate activities associated with software quality assurance, check software under development against corporateindustry rules and standards, analyze the software code for errorprone sections, provide measurements of test coverage, and improve the quality and maintainability of legacy software. A number of structural measures have been suggested to support the assessment and prediction of software quality attributes. However, assessing the maintainability of existing software and deriving recommendations for increasing it is still an area of ongoing research.
Introduction many resources are spent on software maintenance. Pdf software product measurement for supplier evaluation. This definition implies that software maintainability depends on various. Software maintainability standard cisq consortium for. Files are created on computers, sent over wireless networks to be printed out by printers, and backed up on file storage systems. This paper presents smplearner, an automated learningbased approach to train maintainability predictors by harvesting the actual average maintenance effort computed from the code change history as well as. Define and verify coding rules using tcl or perl languages. Ibm rational logiscope rulechecker software subscription. Improve maintainability and reliability by locating errorprone. Osqr video what is software maintainability, and why does.
Thus, as a first step towards optimizing maintainability of avionic software we. Reliability, maintainability, and software quality have to be built into complex equipment and system during the design and development phase. Telelogic had operations in 22 countries and had been. Iso 91261 standard defines the software quality model and the definition of reliability, maintainability, analyzability and changeability which are used in the quality checker audit report of logiscope. Yokogawa hewlettpackard, a joint venture of hewlettpackard and yokogawa elec. Our built in antivirus checked this download and rated it as 100% safe. Developing maintainable software helps reduce technical debt.
1192 1339 427 1405 385 817 758 1485 739 453 273 905 1317 995 1209 1020 163 1166 1345 729 1169 1418 219 913 602 698 177 1357 1188 1293 821 58 795 565 596