Preventive maintenance involves implementing changes to prevent the occurrence of errors. Maintenance the maintenance phase occurs once the system is operational. Typically, the development of software takes 1 to 2 years, while maintenance phase spans 5 to 10 years. It takes planning, preparation, and management of phases and team members to reach a goal. Find out about the 7 different phases of the sdlc, popular sdlc models, best practices, examples and more. This varies and is a bit of a loaded question because every software product is different. During the evolution and maintenance phase, the system is continuously monitored. Ffiec it examination handbook infobase disposal phase. Jan 24, 2016 4 the final step of the system analysis phase in the sdlc is to. Software maintenance is a very broad activity that includes error correction, enhancements of capabilities, deletion of obsolete capabilities, and optimization. This lesson explains the process and outcomes of the maintenance. A software project repeatedly passes through these phases in iterations called spirals in.
Upgradations may be required due to changes in government regulations or standards. A framework for software maintenance and support phase. Sdlc implementation and maintenance in software life cycle. Maintenance phase ffiec it examination handbook infobase. Since these changes are necessary, a mechanism must be created for estimation, controlling and making modifications. Secure software development life cycle requirements phase. Software maintenance in software engineering is the modification of a software product after delivery to correct faults, to improve performance or other attributes. Mar 05, 20 the maintenance stage is the final phase of the sdlc. The maintenance phase of the life cycle begins following a warranty. It reduces software maintenance costs and increases.
It includes implementation of changes that software might undergo over a period of time, or implementation of new requirements after the software is deployed at the customer location. Software engineering software maintenance geeksforgeeks. The software is maintained using the defined and documented processes and standards throughout the maintenance phase. Like anything that is manufactured on an assembly line, an sdlc aims to produce highquality systems that meet or exceed customer expectations, based on. The waterfall software development model is the most primitive approach for software development. The ultimate goal of the maintenance phase is to ensure that the product remains relevant and high quality. What are the software development life cycle sdlc phases.
Software maintenance is the process of modifying a software product after it has. Basically software maintenance phase keeps the software up to date with environment changes, correct the faults and improve the performance of software product after delivery. A systems development life cycle is composed of a number of clearly defined and distinct work phases which are used by systems engineers and systems developers to plan for, design, build, test, and deliver information systems. In maintenance management, bug fixing comes at priority to run the software seamlessly. Requirements analysis and definition, design, implementation and unit testing, integration and system testing, and the operation and maintenance phase. The distribution of types of maintenance by type and by. Stemming from the 50s, the waterfall model is the oldest one, and has now serious competition in form of the agile model, which has largely replaced it. Whether your development team is using the waterfall, agile or iterative model, every piece of software that you release goes through the software development life cycle, which also includes the work your team does pre and post release. Software maintenance is widely accepted part of sdlc now a days. It starts with specifying and analyzing requirements, designing the application, implementing the code followed by unit testing on developers end, integration and system testing and finally maintenance and operation phase.
Jun 30, 2014 the maintenance phase involves making changes to hardware, software, and documentation to support its operational effectiveness. The software development life cycle model includes the following phases. 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. This process contains search out for errors in code and correct. Preventive maintenance involves performing activities to prevent the occurrence of errors. Mar 31, 2015 whether your development team is using the waterfall, agile or iterative model, every piece of software that you release goes through the software development life cycle, which also includes the work your team does pre and post release. Ffiec it examination handbook infobase maintenance phase.
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. Software development life cycle sdlc aims to produce a highquality system that meets or exceeds customer expectations, works effectively and efficiently in the current and planned information technology infrastructure, and is inexpensive to maintain and costeffective to enhance. Mar 10, 2016 after the products release, maintenance is carried out for the customer. After software passes the design stage and is implemented, the maintenance phase of the software life cycle begins. Adaptive maintenance this includes modifications and updations applied to keep.
Software maintenance process is very compressed process and usually it comprises more than half of the development process again. The maintenance phase also includes handling the residual errors that may exist in the software even after. Each gate consists of executable iterations of the software in development 1. Aadi it services is a leading it consulting, web development company, mobile app development services and seo company in india with a team of certified professionals. Sdlc methodologies sdlc phases, models and advantages. Software maintenance phase involves debugging adding new features making changes all of the given ask for details. 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. The development team involves in support and release updates.
Software maintenance overview software maintenance is widely accepted part. It tends to reduce the software complexity thereby improving program understandability and increasing software maintainability. Software maintenance is the process of modifying a software product after it has been delivered to the customer. The maintenance phase of the software life cycle allows individuals to check the performance of the software after it is launched to see if it is all working correctly. Software maintenance is a vast activity which includes. Adaptive maintenance is concerned with the change in the software that takes place to make the software adaptable to new environment such as to run the software on a new. Hence, a focus on maintenance definitely helps keep costs down. Ever wondered what technical documents you need to write for the software development lifecycle. The more complex the software, the more maintenance it will likely need to ensure continued use. The essential part of software maintenance requires preparation of an accurate plan during the development cycle.
The software development process, as with all great projects, starts with an idea. The team makes software improvements or change requests as needed. Primary tasks include the transfer, archiving, or destruction of data records. Software maintenance is an essential part of the software development life cycle. Software maintenance phase involves debugging adding new features making changes all of the given.
First, lets be clear about what software maintenance is for lientz and swanson surveyed nearly 500 data processing groups, and identified four distinct types of maintenance and the proportion of time typically spent on each. Mar 10, 20 maintenance the maintenance phase occurs once the system is operational. Aug 10, 2019 software development life cycle sdlc aims to produce a highquality system that meets or exceeds customer expectations, works effectively and efficiently in the current and planned information technology infrastructure, and is inexpensive to maintain and costeffective to enhance. The software development life cycle sdlc is a terminology used to explain how software is delivered to a customer in a series if steps. The software scope also helps to identifies what the system will do and what it will not do. It stands for all the modifications and updations done after the delivery of software product. It software development lifecycle part 5 maintenance phase. The qa team executes regression suites to check maintenance code deployed. The maintenance phase involves making changes to hardware, software, and documentation to support its operational effectiveness.
Preventive preventive software maintenance services help in preventing the system from any upcoming vulnerabilities. Oct 21, 2016 the more complex the software, the more maintenance it will likely need to ensure continued use. The maintenance phase is the final step in the software development life cycle. No matter how thoroughly the system is tested, bugs or errors creep into computer programs. The main purpose of software maintenance is to modify and update software application after delivery to correct faults and to improve performance.
Perfective maintenance is concerned with the change in the software that occurs while adding new functionalities in the software. Typically, maintenance takes up about 4080% of the project cost, usually closer to the higher pole. The software development life cycle comprises of seven distinct phases. The maintenance phase involves ongoing software changes. Software maintenance is a vast activity which includes optimization, error correction, deletion of discarded features and enhancement of existing features.
This perception is perpetuated by users submitting. May 31, 2018 the software development life cycle sdlc is a terminology used to explain how software is delivered to a customer in a series if steps. Multiple choice questions on sdlc set4 infotechsite. Phase 5 phase 5 of the sdlc is known as disposal this phase involves from issc 363 at american public university. The maintenance stage of the sdlc eternal sunshine of. Phase 5 phase 5 of the sdlc is known as disposal this. Maintenance on software goes beyond fixing bugs, which is one of the four types of software change. This type of maintenance includes modifications and updations to prevent.
Bugs in commercial pc software are often documented as known anomalies, and are corrected when new versions of the software are released or in an interim. This free excel spreadsheet identifies all the plans, guides and forms you to create such as those for requirements specification, design, implementation, testing, deployment, and postdeployment. Also the development team involves in fixing the bugs reported. It includes making changes to improve a systems performance, correct problems, enhance security, or address user requirements. Download ms word templates for every phase of the software development lifecycle. Aadi it services web development company, mobile app. The maintenance stage is the final phase of the sdlc. Maintenance phase the maintenance phase involves making changes to hardware, software, and documentation to support its operational effectiveness. Software maintenance overview software maintenance is widely accepted part of sdlc now a days. These steps take software from the ideation phase to delivery.
Sdlc is a mappedout, regulated framework that typically follows the following universal phases to deliver highquality software application. 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. Over a period of time, a software product may require some updations in order to remain functional in the realworld environment. May 22, 2019 also the development team involves in fixing the bugs reported. The distribution of types of maintenance by type and by percentage of time consumed. Thus, maintenance involves understanding the existing software code and related documents, understanding the effects of change, making the changes both to the code and documents, testing the new parts changes, and resetting of the old parts that were not changed. Software development life cycle sdlc software testing. Software maintenance phase involves debugging adding new. The deployment phase involves making the software live in the productionreal environment after it tested for its tested thoroughly in the previous phase.
Software development life cycle and management phases to move from theory a bit more deeply into details, lets see how project management differs for the waterfall and agile models. Software maintenance supports upgradations, if required, in a software system. During the design phase, the system is designed to satisfy the requirements identified in the previous phases. However, one study indicated that over 80% of maintenance effort is used for noncorrective actions. A common perception of maintenance is that it merely involves fixing defects. May 06, 2020 the deployment phase involves making the software live in the productionreal environment after it tested for its tested thoroughly in the previous phase. Market conditions policies, which changes over the time, such as taxation and. It includes making changes to improve a systems performance.
The software maintenance phase involves changes to the software in order to correct defects and deficiencies found during field usage as well. Importance of sdlc software development life cycle, a. It reduces software maintenance costs and increases reliability of software concerning software security related bugs. Software development lifecycle templates by phase ms word. A common observation of maintenance phase is that it purely includes fixing faults. The requirements identified in the requirements analysis phase are transformed into a system design document that accurately describes the design of the system. It involves ongoing evaluations of the systems performance. Management should transfer data from production systems in a planned and controlled manner that includes appropriate backup and testing procedures. There are number of reasons, why modifications are required, some of them are briefly mentioned below. Its possible to minimize maintenance costs through intelligent planning and execution, but its also possible. Pdf a framework for software maintenance and support phase. The disposal phase involves the orderly removal of surplus or obsolete hardware, software, or data. It comprises documentation updating, code optimization, and code restructuring.