We will be able to minimize inventory and order parts, as required, well ahead of time to support the downstream maintenance needs. Music pad controller using only javascript html and css. The paper provides a classified list of maintenance activities and a condensed decision tree as a summary guide to the proposed evidencebased classification of the types of software evolution and. Types of software maintenance managed chaos by naresh jain. Now and in the future, the work of both practitioners and researchers would be helped by a more objective and finer granularity recognition of types of software evolution and software maintenance activities as actually done. Maintenance also requires several activities that are not found in software development see section 3. Perfective maintenance accounts for 50%, that is, the largest of all the maintenance activities. It may be just a routine maintenance tasks as some bug discovered by some user or it may be a large event in itself based on maintenance size or nature. Software maintenance understanding the 4 types endertech. Apr 12, 2019 maintenance testing involves the use of test equipment to examine conditions in the offline state. Pdf types of software evolution and software maintenance.
Software project management consists of many activities, that includes planning of the project, deciding the scope of product, estimation of cost in different terms, scheduling of tasks, etc. In a software lifetime, type of maintenance may vary based on its nature. Indeed there are more than main three types as the following. Two types of requirements may be included in this document. Software maintenance is a part of software development life cycle. Software maintenance introduction and types software. Policies, which changes over the time, such as taxation and newly introduced constraints like, how to maintain bookkeeping. The type of project impacts the categories of requirements you elicit, analyze, and communicate in your business analysis. There are several types of maintenance software, which run the gamut from simple to. If you carefully read the above heading, you will notice that we are going to talk about implementing multiple types of maintenance strategies, and not just focusing on a single one.
Since repairs are not planned, its a good method to employ for equipment that is not essential for operations or has a low cost think anything thats rarely used. Testing phases in a plandriven software process software maintenance. Grupe payoff a formal procedure for managing maintenance activities opens a window of opportunity for the is manager to consider systems as candidates for reverse engineering, reengineering, and restructuring. Software support contracts include remote troubleshooting and support provided via the telephone and online channels, as well as installation assistance and basic usability assistance. System maintenance is an ongoing activity, which covers a wide variety of activities, including removing program and design errors, updating documentation and test data and updating user support. An efficient and effective preventive maintenance program will have a mix of all these different types of maintenance. It is a set of multiple processes, or we can say that it a task. A software product needs maintenance to support the new features that the users want or to change different types of functionalities of the system according to the customer demands. Software engineering software process activities part 3. We can optimize the operation of the equipment, saving energy cost and increasing plant.
Toward a detailed classification scheme for software. Companies smes as well as large groups know how their productivity partly depends on their industrial maintenance processes. The emd sdps software maintenance and development plan smdp, cdrl item 002, did emdsmdp2, defines the steps by which the development and maintenance of emd sdps software will be accomplished and the management approach to software development and maintenance. Feb 05, 2017 a lot of maintenance jargon, like preventive maintenance, is commonly misused, so ill clarify and compare some of the most important terms, after a brief overview of the more central ones. Planning for software maintenance requires not only thinking about the activities that should take place.
A framework for software maintenance and support phase. Ieee provides a framework for sequential maintenance process activities. Cleaning, visual inspection, functional tests, lubrication, measurement of operating quantities and oil tests are some of the examples of routine maintenance activities. The marine and air transportation, offshore structures, industrial plant and facility management industries depend on maintenance, repair and overhaul mro including scheduled or preventive paint maintenance programmes to maintain and restore coatings applied to steel in environments subject to attack from erosion, corrosion and environmental pollution.
Preventive maintenance involves performing activities to prevent the occurrence of errors. The importance of software maintenance software maintenance is the process of modifying a software system or component after delivery to correct faults, improve performance, or adapt to a changed environment the institute of electrical and electronics engineers ieee. This strategy may be cost effective until catastrophic faults occur. At the process level, software maintenance activities share much in common with software development for example, software configuration management is a crucial activity in both. Types of maintenance compare different types of maintenance. Instead, make sure you know all the tools that you have at your fingertips to determine how you will complete your project. Apr 02, 2014 types of maintenance breakdown maintenance preventive maintenance 1. This article outlines a software maintenance methodology. Break down maintenance it means that people waits until equipment fails and repair it. It accounts for 50% of all the maintenance activities. Additionally, i define one additional, proactive form of maintenance that has not been. Keeping equipment operating improves plant capacity and throughput. Abb guarantees full service for the entire range of brands, including acquired products, of which it manages archives containing all technical information abb, asea, bbc, calor emag, sace, stromberg, gardy.
There are four types of maintenance, namely, corrective, adaptive, perfective, and. Means the maintenance for correcting the software faults. Different types of software maintenance like preventive maintenance. Adaptive maintenance is the implementation of changes in a part of the system, which has been affected by a change that. It makes maintenance more connected, efficient, and visible to the rest of your organization. Background a few researchers have attempted to identify the major types of maintenance work.
Five types of maintenance are in fact recurrent in the industry. Software maintenance is a very broad activity that includes error correction, enhancements of capabilities, deletion of obsolete capabilities, and optimization. How to plan for software maintenance the startup medium. Remember, no onesizefitsall list exists in business analysis. Your facility has different assets that require different levels of. A fourth type of software maintenance is preventive software maintenance. Its main purpose is to modify and update software application after delivery to correct faults and to improve performance. Types of software maintenance no matter what business it is that you run, buying a web solution and sitting back simply does not suffice anymore. Preventive maintenance or pm is a set of inspections and tasks that help prevent equipment from failing. Computer hardware is generally reliable, and most computer problems are related to software issues. Four general types of maintenance philosophies can be identified, namely corrective, preventive, riskbased and conditionbased maintenance. Hardware maintenance and support services are preventive and remedial services that physically repair or optimize hardware, including contract maintenance and perincident repair. Software software is a set of instructions or programs written by programmersdevelopers on various languages for computer to perform some specific task software.
These activities are predictable and easy to schedule and budget. A maintenance model is a mixture of the previous types of maintenance in certain proportions, and it responds appropriately to the needs of a particular equipment. Software maintenance activities 2017 psm workshop 7 june 2017 12 software maintenance activities include. May 09, 2018 for the love of physics walter lewin may 16, 2011 duration. Software maintenance and support services include longterm and payasyougo incidentbased support contracts. Software sustainment under secretary of defense for. It tends to reduce the software complexity thereby improving program understandability and increasing software maintainability. Researchers need relevant descriptive names for the types of activities they observe when studying software evolution and software maintenance. Categories of software maintenance maintenance can be divided into the following. Software maintenance in software engineering is the modification of a software product after delivery to correct faults, to improve performance or other attributes a common perception of maintenance is that it merely involves fixing defects.
Keeping up your web application with the developments that happen in the ever hulking world of internet is as important as its inception itself. Corrective change, most commonly referred to as bugs, is the most typical change associated with maintenance work. Maintenance software is used to manage maintenance activities by organizing, planning, tracking and analyzing all the jobs you and your team do on a regular basis. The smdp addresses software processes, methods, organizational responsibilities. Mar 18, 2017 software engineering software process activities part 3. These are activities those which relate to the general upkeeping of the property, occur on a regular daily or weekly basis, and require relatively minimal training or skills. Chapter 5 types of maintenance programs us department of energy. Software maintenance, understanding the 4 types coderhood. Issues in estimation of software maintenance and support activities software maintenance is defined in the z ieee standard for software maintenance, ieee 1219, as the modification of a software product after delivery to correct faults, to improve performance or other attributes, or to adapt the product to a modified environment. These are maintenance activities which occur outside of a formal work order system and for which no specific maintenance records are kept.
Planning for software maintenance requires not only thinking about the activities that should take place during the maintenance period but also making sure that. Software maintenance is the act of finetuning a software product. Maintenance introduction and types software engineering. A maintenance team may schedule them on a meter or time basis. Types of software evolution and software maintenance chapin. Various types of maintenance activities and procedures. Sizing application maintenance and support activities. Corrective maintenance accounts for 20% of all the maintenance activities. The past two decades have seen increasing sophistication in software work. The 4 software maintenance categories and what they mean for your. Software engineering software maintenance geeksforgeeks. Pdf maintenance and its types engr sajid chaudhary.
For the purpose of convenience, maintenance may be categorized into three classes, namely. Maintenance introduction and types software engineering lectures hindi english. Reactive maintenance breakdown maintenance also known as breakdown or runtofailure, reactive maintenance is pretty simple. Predetermined maintenance, probably the less known one of all the maintenance types presented in this article, doesnt rely on the actual equipments state but rather on the programs delivered by manufacturers. One of the first typologies for maintenance activities was proposed by swanson 1976. Software enhancement or maintenance projects in software. Abb guarantees full service for the entire range of brands, including acquired products, of which it manages archives containing all technical information abb, asea, bbc, calor emag, sace, stromberg, gardy, ejf, ite, zwar, lk nes, reyrolle, westinghouse. Maintenance is carried out following a detection of an anomaly and aimed at restoring normal operating conditions. Maintenance testing involves the use of test equipment to examine conditions in the offline state. Fundamental activities of software engineering duration. Maintenance of software systems comes in four different flavors. Software maintenance release management software release management, also known as software configuration management, is the management of activities surrounding release of one or more.
Such a thing could be used when the equipment failure does not significantly affect the operation or production or generate any signific. Following are some types of maintenance based on their characteristics. We think that every equipment will need a different mix of different types of maintenance, a particular mix of tasks, so that maintenance models will be as many as existing equipment. For instance, an asset with a monthly pm has twelve instances of scheduled maintenance in a given year. Software maintenance and development plan for the emd. Pdf a framework for software maintenance and support phase. Preventive maintenance pm performed regularly, with. Hardware and software maintenance services maintenance services include both hardware maintenance and support services, and network software maintenance and support services. Software maintenance and development plan for the emd project. Nov 14, 2018 try our maintenance software for free. It means that people waits until equipment fails and repair it. Types of software evolution and software maintenance. The most common type of scheduled maintenance is calendarbased preventive maintenance tasks. Swansons classification of maintenance types into adaptive, perfective and corrective.
This type of maintenance includes modifications and updations to prevent future problems of the software. Past and current maintenance practices in both the private and government sectors would imply that maintenance is the actions associated with equipment repair after it is broken. They categorized maintenance activities into four classes. A systems approach to software maintenance it today. As maintenance testing is a set of predictable activities, some organizations consider them preventive or routine. Adaptive modifying the system to cope with changes in the software environment dbms, os. Dec 04, 2018 which types of maintenance strategies should you use. Because change is inevitable, mechanisms must be developed for evaluation, controlling and making modifications. Many medium and large companies rely on computer maintenance to ensure that their equipment is able to cope with demand. Maintenance is a process in which changes are imp0lementd by either modifying the existing systems architecture p\or by adding new components to the system. Effort distribution on the basis of maintenance types.
600 1017 1523 719 1515 232 661 1363 295 8 383 801 1372 845 502 877 1 1188 1280 1377 1252 954 1237 19 1016 117 617 458 515 431 317