He also describes the key metrics used by several major software developers and discusses software metrics data collection. Software engineering economics is about making decisions related to software engineering in a business context. These elements are developed into flowcharts in section 3. The presentation of the results for each of the metrics is not possible in a single. Software security is the idea of engineering software so that it continues to function correctly under malicious attack.
A measurement is an manifestation of the size, quantity, amount or dimension of a particular attributes of a product or process. Software engineering function oriented design the design process for software systems often has two levels. We can accurately measure some property of software or process. Process metrics assess the effectiveness and quality of software process, determine maturity of the process, effort required in the process. Metrics and models in software quality engineering 344 pages. Objectoriented analysis and design, second edition applying uml and patterns objectoriented software engineering. If we try to send more data to the network, we may increase throughput but we increase the delay because of traffic congestion in the network. Kan discusses several metrics in each of three groups of software quality metrics. Information flow is the movement of information between people and systems. Software metrics refers to a broad range of measurements for computer software. Modularity and information flow attributes a module is a contiguous. Our software engineering tutorial contains all the topics of software engineering. Information theory studies the transmission, processing, extraction, and utilization of information.
Create a system architecture skeleton sas very early in the program and use it as the framework for subsystem integration as components are added incrementally 5. Software engineering tutorial for beginners and programmers learn software engineering with easy, simple and step by step tutorial for computer science students covering notes and examples on important concepts like framework, various models like generic, perspective waterfall, rad etc. Engineering and production stages, inception, elaboration, construction, transition phases. Software quality is an important topic of software development and it is always challenging to deliver highquality software. For a more permanent and professional looking map, the information can be easily transferred to one of many computer programs that have drawing tools. In this chapter from his book on software quality engineering, stephen h. Software engineering is an engineering branch associated with development of software product using welldefined scientific principles, methods and procedures. Measurement and management of performance in organizations.
Document control and records management process description. Information flow metrics deal with this type of complexity by observing the flow of information among system components or modules. Software life cycles community driven projects lean software development scrum software architecture modeldriven software architecture serviceoriented architecture software as a service 6. The complexity metrics of the software code applicable for the. Software engineering software process activities part 3. Industrial ecology systems perspectives randolph kirchain types of material flowrelated analysis throughput of a b c associated with substances, materials, products regions e. Information flow metrics reliability engineering software. What is value stream mapping vsm, benefits, process and value. However, these two criteria are often contradictory. Analysis of complexity metrics of a software code for. Efficient and secure information flows are a central factor in the performance of decision making, processes and communications. Measurement can be applied to the software process with the intent of improving it on a continuous basis. Software engineering cs8494, cs6403 anna university. Engineering electrical engineering electronics engineering civil engineering mechanical engineering computer science engineering information technology medical mbbs nursing bpharm md mba annauniv mba tn school 11th 12th anna university eee anna university ece anna university civil anna university mech anna university cse anna.
Process models in software engineering walt scacchi, institute for software research, university of california, irvine february 2001 revised version, may 2001, october 2001 final version to appear in, j. Software metrics university of calgary webdisk server. Software engineering function oriented design geeksforgeeks. Measurement in software engineering neglect of measurement in software. The other set of metrics we would live to consider are known as information flow metrics. The crisis arose in part because the greater power available in computers meant that larger software projects were tackled with. Software structure metrics based on information flow. Essentially the need for software development and other activities are to process data. Software engineering provides a standard procedure to design and develop a software. No way to measure property directly or final product does not yet exist for predicting, need a model of relationship of predicted variable with other measurable variables.
May 02, 2012 cmm managed level 4 detailed measures of the software process and product quality are collected both the software process and products are quantitatively understood and controlled a software metrics program is in use process measurement 27. Teaching data flow testing in cs456556 because data flow testing is an important and effective testing technique, and because there are no other courses on software testing in our program, we decide to cover data flow testing in cs456556. Collecting informationcollecting information performance metricsperformance metrics. Value stream mapping is a flowchart method to illustrate, analyze and improve the steps required to deliver a product or service. The quizzes 20% of the final grade o 5 or more surprise quizzes randomly distributed over the course of weeks. The major challenges, to complete the software, are time and cost. Teaching data flow testing in an software engineering course. The function point metric, which was proposed by a. Jan 16, 2020 value stream mapping can be traced back to more than 30 years ago, to the visual mapping technique used at the toyota motor corporation. At issue is the development of quantitative measures of software quality. The following are common types of information flow. Software measurement and software metrics in software quality. Motivations for using metrics in software engineering.
May 09, 2018 for the love of physics walter lewin may 16, 2011 duration. Requirements engineering process consists of the following main activities. Our goal is that students fully understand the following. Hardest to compute but indicates information flow from p to q. Introduction it is the process used to identify the correctness,completeness and quality of developed computersoftware. Performance is often evaluated by two networking metrics. Data integration is often implemented as a publishsubscribe model. Software measurement is a titrate impute of a characteristic of a software product or the software process. Software engineering requirements engineering process. The nature of the software engineering process is too poorly understood to provide a basis for selecting a.
Software engineering data structure metrics javatpoint. Software project management has wider scope than software engineering process as it involves. Scribd is the worlds largest social reading and publishing site. Information flow metrics for the evaluation of operating systems. Define a configuration management process such that the system integration and configuration management teams build. This systems view maps to software systems extremely easily as most engineers today use, or are at least familiar with, topdown design techniques that produce a. Documenting software processes 2 lesson objectives 3 understand the recommendations for. The outcome of software engineering is an efficient and reliable software product. J albrecht, is used to measure the functionality delivered by the system, estimate the effort, predict the number of errors, and estimate the number of components in the system. The success of a software product, service, and solution depends on good business management. It came about as the companys focus shifted to gain a better understanding of the material and information flow throughout their organization.
Apply ing these metrics to the design structure can identify areas of probable weaknesses. At the first level the focus is on deciding which modules are needed for the system on the basis of srs software requirement specification and how the modules should be interconnected. Requirement engineering is the process of defining, documenting and maintaining the requirements. Presented by saptarshi dutta chowdhurymca, heritage institute of technology 2. Software engineering tutorial delivers basic and advanced concepts of software engineering. First metrics should deal with stability, second metrics should deal with flow. Lecture 5 software engineering 1 introduction the software crisis of the 1960s and 1970s was so called because of a string of high pro.
Yet, in many companies and organizations, software business relationships to software development and engineering remain vague. Course information syllabus pdf guidelines for all assignments pdf book. Ieee defines software design as both a process of defining, the architecture, components, interfaces, and other characteristics of a system or component and the result of that process. Flow charts and process mapping quality tools and six sigma. Abstractly, information can be thought of as the resolution of uncertainty.
Software engineering, 6th edition, ian sommerville, addisonwesley, isbn 0209815x. Information flow metrics free download as powerpoint presentation. Software metrics information flow metrics component. Software engineering information flow metrics javatpoint. Basics of cost and schedule monitoring mit opencourseware. Kafura, the evaluation of software systems structure using quantitative software metrics, software practice and experience, june 1984. In regards to software project cost and underestimation, it is a problem that has not diminished in the last 70 years. Software engineering tutorial is designed to help beginners and professionals both. Computer science engineering cse class notes, engineering class handwritten notes, exam notes, previous year questions, pdf free download. The basis of information flow metrics is found upon the following concept the simplest system consists of the component, and it is the work that these components do and how they are fitted together that identify the complexity of the system. Software metrics massachusetts institute of technology.
Software engineering presentations computer science. Corporate presentation march, 20 cem kaner florida. Mar 18, 2017 software specification or requirements engineering is the process of understanding and defining what services are required and identifying the constraints on these services. In the case of communication of information over a noisy channel, this abstract concept was made concrete in 1948 by claude shannon in his paper a mathematical theory. Software quality metrics overview product quality metrics. This section describes the basic process elements for document control and records management. It is a process of gathering and defining service provided by the system. Information flow metrics reliability engineering software scribd. Software design is a phase in software engineering, in which a blueprint is developed to serve as a base for constructing the software system. Software project management pdf notes spm pdf notes. It was then known as the material and information flow. This could be something like microsoft word or excel, using the drawing tools function. The principles of conventional software engineering, principles of modern software management, transitioning to an iterative process.
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