This maintenance planning training course is a little different to many others. Before we can start estimating the cost of software maintenance, we first need. Software engineering software maintenance software maintenance is the process of modifying a software product after it has been delivered to the customer. Teams who follow a preventive maintenance strategy initially find higher costs and reduced uptime as equipment is taken offline for planned maintenance.
Dec 15, 2015 software engineering, software maintenance, reverse engineering, preventative software maintenance, corrective software maintenance, perfective software main. Free sample powerpoints for maintenance, engineering. Costs not aligned with software maintenance output productsactivities. Software engineering is an engineering discipline that is concerned with all aspects of software production. There are various factors, which trigger maintenance cost go high, such as. The purpose of this essay is to present a costing model for software maintenance and evolution based on a separation. Nov 30, 2000 for slides, see lecture 20 lecture 24, legal issues powerpoint html lecture 25, management iii. Department of energys federal energy management program femp. Software re engineering allow us to translate source code to new language, restructure our old code. Upgradations may be required due to changes in government regulations or standards.
A course in software engineering lecture 15 software. Over the course of the next several weeks, you encounter several. The main purpose of software maintenance is to modify and update software application after delivery to correct faults and to improve performance. Software testing nist f b nist reports software bugs cost annually two of the most common source lack of compatability. Engineers explaining the role of maintenance will often tell you to compare.
Oct 21, 2016 factors affecting software maintenance effort and cost lets take a look at 2 products, both of which have been in use for a year and have over 20,000 users each. Problems arise when a software generally exceeds timelines, budgets, and reduced levels of quality. Software maintenance software maintenance is the process of changing a system after it has been delivered. Factors affecting software maintenance effort and cost lets take a look at 2 products, both of which have been in use for a year and have over 20,000 users each. The free samples above are from the powerpoints used for the training course industrial reliability and maintenance management training powerpoints. The oneday maintenance ppt seminar overviews and covers the key maintenance and reliability concepts, processes and techniques needed for world class maintenance management performance. Free sample powerpoints for maintenance, engineering, management. Participant will be also to identify the areas to pay attention and to facilitate the decision making. Surveys in the 80s reveals up to 60% of organisational software effort spent in maintenance.
Even entire modules and classes can be completely redundant. Teams who follow a costminimization strategy reactive maintenance policies are able to keep costs low for a uptime falling and costs rising. A reoccurring topic in software engineering is the. Managing people powerpoint html lecture 26, risks in software engineering powerpoint html lecture 27, software engineering as engineering powerpoint html. Development of software maintenance costs as percentage of total cost. Onscreen show other titles a free powerpoint ppt presentation displayed as a flash slide show on id. Nov 23, 2017 cocomo model constructive cost model introduction software engineering lectures hindi and english. This varies and is a bit of a loaded question because every software product is different. These software engineering courses will provide you with valuable insight into the technical skills and modern techniques used in the software industry. Programs, life cycles, and laws of software evolution. The participant will be able to establish strategic plans of maintenance cost control, to create cost classification structure for maintenance based on the strategy of the assetcompany.
Introduction to software engineeringdeploymentmaintenance. Managing people powerpoint html lecture 26, risks in software engineering powerpoint html lecture 27, software. Ppt maintenance management powerpoint presentation. In software engineering under software cost estimation. Avionic systems engineering crash course by taking this training course, you will fully understand all the systems involved in avionic technology, plus you will be introduced to do178c and do254. Cost engineering is at the heart of everything we do. Piping and pipeline design, maintenance, and operation. It has been neglected in education, partly because of the difficulty of preparing a software system upon which maintenance can be.
On an average, the cost of software maintenance is more than 50% of all sdlc phases. If the application of the program is defined and well understood, the system requirements may be definitive and maintenance due to changing. The last day of the course will discuss pipeline operation, inspection, maintenance, and integrity management. There are two types of cost factors involved in software maintenance. Maintenance costsmaintenance costs are usually greater thandevelopment costs by a factor of 2 to 100. Finally, the last maintenance process, also an event which does not occur on a daily basis, is the retirement of a piece of software. This perception is perpetuated by users submitting. Preventive maintenance principles free online course materials.
In another study, the relative costs of maintenance and software development management were estimated more than 90% of the total cost of the software life 9. The more complex the software, the more maintenance it will likely need to ensure continued use. The software maintenance process comprises a set of software engineering activities that occur after the software has been delivered to the user. Specifics topics that will be covered include coating monitoring and inspection, engineering and design, operations control and monitoring, risk based inspection api 580 and api 581, projected remaining life and fitness for service assessment api 579. As a result we are passionate to share our expertise with others. Software maintenance supports upgradations, if required, in a software system. Fritz bauer, a german computer scientist, defines software engineering as. A behaviorbased approach by sam mcnair, pe, cmrp, life cycle engineering page 3 of 7 when looking at maintenance costs, the most important concept that you must remember is that your organizations behaviors change the resulting cost numbers.
In particular you will learn techniques for estimating the cost of the software and scheduling its development or adaptation in the context of available personnel. Chapter 17 covers software reuse in far more detail than well go into on this course. Software engineering is a detailed study of engineering to the design, development and maintenance of software. Software maintenance introduction software maintenance facts and figures software maintenance importance, effort distribution, and request types types of software. Software engineering software maintenance cost factors. By combining all the above definition we can define software engineering as, software engineering is the technological and managerial discipline concerned with systematic production and maintenance of software products that are developed and modified on time and within cost estimates. Software engineering software maintenance geeksforgeeks. Sometimes, maintenance also involves adding new features and functionalities using latest technology to the existing software system. Chapter 14 is a very good introduction to the problems and approaches to software maintenance. A study on estimating software maintenance found that the cost of maintenance is as high as 67% of the cost of entire software process cycle.
Validation and verification powerpoint html lecture 23, tools for debugging ii for slides, see lecture 20 lecture 24, legal issues powerpoint html lecture 25, management iii. A free powerpoint ppt presentation displayed as a flash slide show on id. Additionally, you will cover issues of risk management associated with software engineering, as well as the important area of software quality assurance. Conclusion maintenance is a major cost for software and must. Software engineering tutorial 2 1 the application of a systematic, disciplined, quantifiable approach to the development, operation, and maintenance of software. Specifics topics that will be covered include coating monitoring and inspection, engineering and design, operations control and monitoring, risk based inspection api 580 and api 581, projected remaining life and fitness for service. Ppt maintenance,types of maintenance,breakdown maintenance. Software re engineering is concerned with taking existing legacy system and reimplementing them to make them more maintainable. An analysis of maintenance strategies and development of a.
Types of maintenance programs on the down side, to initially start into the predictive maintenance world is not inexpensive. Software maintenance typically requires 40 to 60 percent, and in some cases as. Its possible to minimize maintenance costs through intelligent planning and execution, but its also possible. Download all free engineering software, manufacturing software and other related learning software.
Ppt maintenance management powerpoint presentation free. Software maintenance in software engineering is the modification of a software product after delivery to correct faults, to improve performance or other attributes. According to ieees definition software engineering can be defined as the application of a systematic, disciplined, quantifiable approach to the development, operation, and maintenance of software, and the study of these approaches. Accurately estimate your software maintenance costs galorath. Note also that some academic institutions are carrying out research to quantify the cost to ongoing software maintenance due to the lack of resources such as design documents and system software comprehension training and resources multiply costs by approx. The objective of software maintenance is to modify existing software while preserving its integrity. The free sample above is from the powerpoint total productive maintenance tpm powerpoint sold on the full powerpoint at that website covers introduction and requirements for implementing a successful tpm in your organization eamsystemtrainingday1 ppt sample. Avionic systems engineering crash course tonex training. Modifying a program after it has been put into use. The cost engineering academy has various courses in the profession of cost engineering. Feb 01, 2017 software engineering is an engineering discipline that is concerned with all aspects of software production. Tonex avionic systems engineering crash course is fun and dynamic.
In some cases, the materials were produced by the lead instructor, joel cutchergershenfeld. Software maintenance exercises for a software engineering. Which factors affect software projects maintenance cost more. Whether you want to learn more about cost estimating or cost control, the cost engineering academy has the right program for you. Product 1, which well call taco bout it, is a geolocation enabled social networking mobile app that lets people who love tacos connect with other taco loving folks. Join thousands of students studying software engineering methodologies, software design, parallel programming, and software debugging with alisons free online software engineering courses. Electrical engineering is a relatively recent field to emerge from the larger discipline of engineering, but it has become nearly as important to modern life as the structures of the buildings in which we live and work. Software web brower, os, or other softwa program on windows vista uncommon inppguts. Accurately estimating software maintenance costs is critical to proper project management, as software maintenance makes up roughly 75% of the tco. Of course the percentage of each maintenance activity is variable. Used of software reverse engineering software reverse engineering is used in software design, reverse engineering enables the developer or programmer to add new features to the existing software with or without knowing the source code.
Developed from the 3 day seminar, the full powerpoints from are 3 powerpoints for a total of 235 slides, plus a 27 page workbook. Software engineering was introduced to address the issues of lowquality software projects. These materials were developed as part of mits esd. It is ideal for management level presentations, sessions to key supervisory employees and planners, explanations to persons with a maintenance background, etc. Preventive maintenance cost to total breakdown cost ratio cost data collection problems references chapter 11. Cocomo model constructive cost model introduction software engineering lectures hindi and english. The purpose of software maintenance is defined in the international standard for software maintenance. However, one study indicated that over 80% of maintenance effort is used for noncorrective actions.
The mission of femp is to facilitate the federal governments implementation of sound, cost. For example, if a webapplication system with multimedia capabilities has been developed, modification may be necessary in countries where screening of videos over the internet is prohibited. Free powerpoints free industrial engineering software. Introduction to software engineering linkedin slideshare. Other free engineering downloads and industrial books makes this site a valuable addition to your industrial learning systems. An analysis of maintenance strategies and development of a model for strategy formulation a case study master of science thesis in the master degree programme, production engineering gustav fredriksson hanna larsson department of product and production development division of production systems chalmers university of technology. Joe and ted will take you through the course presentation.
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