In software engineering, a software development process is the process of dividing software development work into distinct phases to improve design, product management, and project management. The sm process includes a maintenance plan which contains software preparation, problem identification and find out about product configuration management. The implementation process contains software preparation and transition. For such modifications in the software system, software maintenance is performed.
Software process in software engineering a software process is the process of dividing the development works into different phase. This occurs because the software maintenance team is unaware of the requirements and design documentation. The software maintenance process model alain april1, jane huffman hayes. The breakdown of topics for software maintenance is a decomposition of software engineering topics that are generally accepted in the software maintenance community. In practice, they include subactivities such as requirements validation. Software engineering studies suggest that the software maintenance process begins without proper knowledge of the software system. Modifying a program after it has been put into use. The software maintenance, which can last for 56 years or even decades after the development process, calls for an effective plan which can address the scope of software maintenance, the tailoring of the post deliverydeployment process, the designation of who will provide maintenance, and an estimate of the lifecycle costs. Mar 17, 2017 software evolution software maintenance. The purpose of software maintenance is defined in the international standard for software maintenance. It is also known as a software development life cycle sdlc. How to plan for software maintenance the startup medium. Apr 01, 2020 the goal of this software engineering app is to provides the software engineering fundamentals, principles and skills needed to develop and maintain high quality software products.
The software engineering processes and techniques covered include requirements specification, design, implementation, testing and management of software projects. It is become important since several software products lack of documentation and are highly unstructured. The sm process includes a maintenance plan which contains software. After completing the hectic and time consuming process of developing and testing a software application. The process of assessing the effects of such environmental changes on a software system, and then modifying the system to cope with those changes is known as adaptive maintenance perfective maintenance. It is a thorough process where the design of software is changed and programs are rewritten. It also establishes definitions for the various types of maintenance. Software engineering software process and software process. Software maintenance in software engineering computer notes.
Maintenance introduction and types software engineering lectures hindi english. The software maintenance process comprises a set of software engineering activities that occur after the software has been delivered to the user. Cost depends on the creation and maintenance of the software. Many process models have been described and we will look at a number of such models. The software maintenance process focuses on fixing errors. Oct 21, 2016 perfective maintenance, which typically results from user feedback, is modification of a software product after delivery to improve performance or maintainability.
The aim of software evolution would be to implement the possible major changes to the system. Oct 25, 2012 software production and maintenance issues, costs estimation, project schedule and knowledge of the process have always been complicated cases in software engineering. Software should be secure, means if you have delivered the software, then it should work for at least its given time or subscription. They are general in nature and are not tied to any particular domain, model, or business needs. This standard defines the activities and tasks of software maintenance, and provides maintenance planning requirements. It affects positively at software cost, quality, service to the customer and speed of delivery.
The software maintenance, which can last for 56 years or even decades after the development process. There are four types of maintenance, namely, corrective, adaptive, perfective, and preventive. Robert glass, writer of the facts and fallacies of software engineering, when it comes to software, 60% costing is for maintenance. Corrective maintenance is concerned with fixing errors that are observed when the software is in use. The objective of this paper is thus to document and analyze an existing, moderate size, software maintenance project. Software maintenance software maintenance is the process of changing a system after it has been delivered. Software engineering software maintenance software maintenance is the process of modifying a software product after it has been delivered to the customer. The process of developing a software product using software engineering principles and methods is referred to as software evolution. What is the difference between a software process and. Software maintenance and configuration management, software. When we need to update the software to keep it to the current market, without impacting its functionality, it is called software re engineering. Reverse engineering is processes of extracting knowledge or design. May 29, 2015 generally, it service providers suggest their clients to go for software maintenance services for the consistent and enhanced performance of the system.
To design, implement, and operate a successful software development process, exposure to similar existing systems is invaluable. Software maintenance in software engineering is the modification of a software product after. Forward engineering is same as software engineering process with only one. However, one study indicated that over 80% of maintenance effort is used for noncorrective actions. There are number of reasons, why modifications are required, some of them are briefly mentioned below. Isoiecieee international standard for software engineering. This standard uses a process model to discuss and depict each phase of software maintenance. The problem analysis process includes checking validity, examining it and coming up with a solution and finally getting all the required support to apply for modification. The platform migration process, which is used if software is. The process acceptance by confirming the changes with the individual who raised the request. This includes modifications and updations when the customers need.
Software maintenance is an important phase of software development life cycle sdlc, and it is implemented in the system through a proper software maintenance process, known as software maintenance life cycle smlc. Software engineering software maintenance javatpoint. Software engineering is a discipline of engineering that is concerned with the design, development, testing, maintenance, and deployment of a software product. Software maintenance in software engineering tutorial 20 may. Concepts and practice software maintenance, it is the representation of those parts of the process specifically pertaining to the evolution of the software. These preceding aspects are part of the software development life cycle sdlc that a software undergoes before finally made available for clients and users. Ieee defines maintenance as a process of modifying a software system or. For the software system that is in existence, the code is examined and analyzed and then the design is obtained by the process of reengineering. The objective of software maintenance is to modify existing software while preserving its integrity.
This life cycle consists of seven different phases, each of which can be used in iterative manner and can be extended so that. The software maintenance task is responsible to coordinate the continuous maintenance of the middleware components developed within the project and included in an emi distribution, preserving at the same time their stability in terms of interface and behavior, so that higherlevel frameworks and. Oct 23, 2011 finally, the last maintenance process, also an event which does not occur on a daily basis, is the retirement of a piece of software. Software engineering software process activities part 3. Jan 07, 2017 types of software maintenance, reengineering, reverse engineering, forward engineering, the scm process, identification of objects in the software configurati slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Indeed,theemphasishas oftenbeen to getthe program upand runningwithout being hindered by guidelines, methodologies, or othercontrols. The goal is to ensure your users are satisfied with the experience and will continue to use your product as a result of the added value perfective maintenance contributes. The presented topics can be used by small and medium sized. Software process is the central to the development of an efficient information system. Software maintenance is a part of software development life cycle. 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. The criteria established apply to both the planning of maintenance for software while under development, as well as the planning and execution of software maintenance activities for existing software products. This life cycle comprises seven phases, namely, problem identification, analysis, design, implementation, system testing, acceptance testing, and delivery phase. Maintenance introduction and types software engineering.
Software maintenance overview software maintenance is widely accepted part. Corrective maintenance of a software product may be essential. A common perception of maintenance is that it merely involves fixing defects. Software engineering was introduced to address the issues of lowquality software projects. Which factors affect software projects maintenance cost more. This life cycle consists of seven different phases, each of which can be used in iterative manner and can be extended so that customized items and processes can be included. This section describes the six software maintenance processes as. Reverse engineering reverse engineering is the process followed in order to find difficult, unknown and hidden information about a software system. Standard for software engineering software life cycle processes. This includes the initial development of software and its maintenance and updates, till desired software product is developed, which satisfies the expected requirements. Jul 02, 2018 software engineering software maintenance tutorial. The basis for the maintenance process and its activities is consistent with isoiecieee 12207. Legacy software cannot keep tuning with the latest technology available in the market.
Software engineering software maintenance geeksforgeeks. This perception is perpetuated by users submitting problem reports that in reality are functionality enhancements to the system. Software maintenance is widely accepted part of sdlc now a days. The main purpose of software maintenance is to modify and update software application after delivery to correct faults and to improve performance. It stands for all the modifications and updations done after the delivery of software product. Software evolution, specifically software maintenance, is the term used in software engineering to refer to the process of developing software initially, then repeatedly updating it for various reasons. It is the process by which we prevent our system from being obsolete. Software maintenance is the process of modifying a software product after it has been. Because in software engineering, testing and maintenance are given, so there is no worry of its. Software maintenance supports upgradations, if required. In software engineering, software maintenance is the process of enhancing and optimizing deployed software software release, as well as. Categories of software maintenance maintenance can be divided into the following. The software is being modified to meet customer and market requirements changes.
Jul 02, 2018 software engineering maintenance process video lecture. Introduction to software engineeringdeploymentmaintenance. Software maintenance in software engineering is the modification of a software product after delivery to correct faults, to improve performance or other attributes. Improving the software to support user requirements. Also, traditional models fail to capture the evolutionary nature of the software. Problems arise when a software generally exceeds timelines, budgets, and reduced levels of quality. Software engineering is a detailed study of engineering to the design, development and maintenance of software. Software maintenance is typically performed within a much shorter timeframe than a software development effort. Complete playlist for full course of software engineering. P14764 software engineering software life cycle processes. And if any bugs come in the software, the company is responsible for solving all these bugs.