Maybe a few months from now you'll realise you need it after all, or you'll have a colleague say "I wish I had a..." and realise you've already made one. To opt-out click for more information. In all these cases, you or your developers, will find yourselves wading through code trying to figure out how it all fits together. Maintainability refers to the ease with which you can repair, improve and understand software code. For example, if a web-application system with multimedia capabilities has been developed, modification may be necessary in countries where screening of videos (over the Internet) is prohibited. You need to make these changes regularly to keep your product up to date. Technical debt is paid off in the cost of maintenance. Developing maintainable software helps reduce technical debt. In this way, it can be done as part of the normal development process. Modern software systems keep evolving to refine software functionality and maintainability, as well as fixing software flaws. Able to overcome the impact of requirements change, software development risk can be effectively decreased. Author: Andrew Taylor BSc MA FRSA - Art and Engineering in Product Design General Rules - Design for Maintainability: The rules are largely common sense. 1) Embold. Maintainability is a long-term aspect that describes how easily software can evolve and change, which is especially important in today’s agile environment. Maintainability is defined as "the relative ease and economy time and resources with which an time can be retained in or restored to a specified condition when maintenance is performed by personnel having specified skill levels, using prescribed procedures and resources, at each prescribed level of … Minimize spare parts inventory is just one benefit. A small investment in the maintainability of your code makes it easier to pick it up after a break, and can provide you with an insurance policy should your disposable software turn out to be more useful than you originally thought. Collectively, they affect both the utility and the life-cycle costs of a product or system. 2. Website accessibility. Answering the following questions will help you judge the maintainability of your software: Now ask the questions again but, this time, adopt the perspective of someone else in your team and someone who is completely new to your software. This auto-scaling infrastructure didn’t make sense to set up during development, but now that you need it, it’s critical to your product’s success. Maintainable software is software that is easy to understand. is a quality intelligence platform which provides this missing visibility—exactly what you need to focus maintenance work and reduce developer time wasted on reactive maintenance. It requires maintaining legacy software and fixing its bugs alongside the development of new products. Contact The evolution of your software might be motivated by a variety of reasons; to keep the software up and running, upgrade to the latest release, enhance features or to rework the system for future maintainability. Software Maintenance must be performed in order to: Correct faults. The life of your software does not end when it finally launches. Many of these are generally applicable to writing good software: There are a couple of very useful preventative techniques you can consider which can greatly reduce the cost of maintenance. Software maintainability is important because the effort expended on changes and fixes in software is a major cost driver. During this phase the defect arrivals by time interval and customer problem calls (which may or may not be defects) by time interval are the de facto metrics. We can advise you on the design and development of maintainable software that will benefit both you and your users. Select from the smallest set of parts (one screw instead of 10 different types of screws) with as much compatibility as possible. We quote the IEEE Standard Glossary of Software Engineering Terminology: maintainability. Moreover, projects being in maintenance represent a large majority of … With an observer as their 'safety net', the driver can focus on the tactical aspects of coding. Although crucial, regression testing can be extremely costly [1–3 ]. Read our white paper to learn how to move from endless reactive software maintenance to a proactive model which anticipates quality issues and focuses on those that matter most: Reactive Software Maintenance: The Silent Killer of Developer Productivity, Software Quality Metrics: Selecting the Right Metrics for Any Project, Software Quality Measurement: 8 Dimensions of Quality and How to Measure Them, Software Maintainability: What it Means to Build Maintainable Software, An Introduction to Software Testing Life Cycle (STLC): Definition and Phases, Software Traceability: Keeping Track of Dev and Test Productivity when WFH, Software Quality Engineering: A Beginner’s Handbook, How to handle maintenance in agile projects, Breaking out of the reactive maintenance model. Support By thinking ahead and investing now you reduce the impact of changes in the future. Maintainability is a long-term aspect that describes how easily software can evolve and change, which is especially important in today’s, Maintainability refers to the ease with which you can repair, improve and understand software code. A programming team will perform four types of maintenance on new deployments or enhancements: corrective, adaptive, perfective, and preventative. Software engineering involves designing, development, and maintenance of various application-based softwares. The plan often is to complete these tasks when time permits, and time rarely permits! If they contribute these back to you, or make them freely available, this can be viewed as free effort for your project. We wrote this guide to give an overview of a subject that we think is important to software sustainability. This is done prior to to any testing activity and involves developers reviewing code line by line to find errors. It is code that can be understood by someone new - or someone that hasn't seen it in a while - with a minimum of effort. Are the number and magnitude of such knock-on changes small? As software guru Martin Fowler said in Refactoring: Improving the Design of Existing Code, 1999, "Good programmers write code that humans can understand.". Alternatively, it can be done in a more lightweight, informal manner which, if done properly, can be just as effective. Attribution Software maintenance is a phase in the, involves searching for errors and correcting them to allow the software to run seamlessly, —enhancing the software to provide new features required by customers, —replacing unwanted functionalities to improve adaptiveness and efficiency, —fixing security vulnerabilities found in your proprietary code or third-party code, especially open source components. 4.3 Metrics for Software Maintenance When development of a software product is complete and it is released to the market, it enters the maintenance phase of its life cycle. This includes both small changes to features like UI as well as more significant improvements to the code that boost performance. This includes fixing bugs, optimizing existing functionality and adjusting code to prevent future issues. Once you're finished, leave your spot as you would like to find it yourself, or leave it in a better state than you found it! So when should you use either of these techniques? Analysis activities Standards and guidelines Design activities Implementation activities Supporting documents From maintenance view point, the most importantactivities that occur during analysis are establishingstandards and guidelines for the project … Indeed, maintenance is nearly always the longest part of a software life cycle, as it lasts from the project release until basically the end of times. Non-Commercial 2.5 License, Fix a bug, without introducing a new bug as you do so, Add new features, without introducing bugs as you do so, Make a fix that prevents a bug from occurring in future, Make changes to support new environments, operating systems or tools, Bring new developers on board your project, Design for maintainability from the outset, Iterative development and regular reviews help to improve quality - see the section below, Readable code is easy to understand ("write programs for people"), Refactor code to improve its understandability, Relevant documentation helps developers understand the software, Automated build make the code easy to compile, Automated tests make it easy to validate changes, Continuous integration makes the code easier to build and test, Version control helps keep code, tests and documentation up to date and synchronised, Change the way you work to make maintainability a key goal. tackling potential issues. Adaptive maintenance includes the environmental changes where your software is living. for Better and Faster CI/CD. The more a software product grows, the more technical debt accumulates until maintenance time can become the dominant portion of an agile team’s workload. The great news is that it has been known for a long time that code reviews can remove up to 90% of errors in checked code before the first test is run [1], and it is cheaper to fix errors at this stage than further down the line, when you may have published results based on software that turns out to have bugs (see, for example, "A Scientist's Nightmare: Software Problem Leads to Five Retractions"). Interface with other systems. IEEE Standard Glossary of Software Engineering Terminology, Refactoring: Improving the Design of Existing Code, A Scientist's Nightmare: Software Problem Leads to Five Retractions, Creating a Maintainable Software Ecosystem, Using Pair Programming Practices in Code Inspections, Design and Code inspections to reduce errors in program development, Creative Commons Jim Waldo, a distinguished engineer at SUN Microsystems [17] writes “Software engineering is a lot less like other kinds of engineering than most of Every Friday we send out a digest of the week's news and blog posts. Users will often identify bugs and report them. In mobile communications age, environment changes rapidly, the requirements change is the software project must face challenge. Can I understand the code? Supporting mandatory upgrades: Software maintenance supports upgradations, if required, in a software system. If agile teams had exact data about which parts of the product are error-prone and likely to impact the customer, they could focus maintenance effort on these areas, and save valuable time for development of new features. 1.2.4 Factors Affecting RA… If you release maintainable open source software during your project's lifetime then you might get other developers fixing bugs or making extensions that you don't have time to do. Because of this it's been found, at least for code reviews, that the first hour of the first code review matter most [2]. Fixing bugs before deployment saves a lot of time and energy in the long run. The longevity of a product depends on a developer’s ability to keep up with maintenance requirements. 2.1 Informal Descriptions There are many text descriptions available, which are in essence very similar. We take an em-pirical, qualitative approach, by investigating cases where a change has cost more or less than comparable changes, and analysing the causes for those differences. The architecture uses inspectors (software agents) and an independent auditor (third party) to collect SLA metrics from these parties. The Maintenance and Maintainability Improvement Initiative (MAMII) is intended to strengthen the agency’s guidance, tools and collaborations as it relates to both maintenance and maintainability of on-ground and space flight systems. detection and correction of faults. They do it by: SeaLights is a quality intelligence platform which provides this missing visibility—exactly what you need to focus maintenance work and reduce developer time wasted on reactive maintenance. No matter the motivation, software maintena… Read our white paper to learn how to move from endless reactive software maintenance to a proactive model which anticipates quality issues and focuses on those that matter most: Reactive Software Maintenance: The Silent Killer of Developer Productivity, Test Quality – Derive Actionable Insights, End-to-End Traceability of Every Software Change, Improve Organizational Visibility of Software Quality Metrics, Revealing Quality Risks Early for Preventive Sprint Planning, Become a Software Quality-Centric Enterprise, Privacy Policy Embold is a software analytics platform that analyses source code and uncovers issues that impact stability, robustness, security, and maintainability. If I do break something, is it quick and easy to detect and diagnose the problem. Maintainability is a major stake of professional software development. You can save time, in the short term, by not commenting code, not refactoring to make it more readable, not addressing compiler warnings, leaving aside tests, skipping documentation and not recording why something was implemented in a specific way. What if a developer leaves your team (or they fall ill), and you need to take over their code? This makes it harder to accurately plan and manage sprints. Regression testing has been widely used during software evolution to ensure that software changes do not bring new regression faults. The SeaLights Software Metrics Guide Upgradations may be required due to changes in government regulations or standards. If you build a valuable product that works perfectly but is difficult to modify and adapt to new requirements, it will not survive in today’s market. Since Software Reliability is one of the most important aspects of software quality, Reliability Engineering approaches are practiced in software field as well. Put yourself in the place of the maintenance engineer, and try to design out any obstacles to easy maintenance: • Maintainability is created during the design process. A good approach to get the most benefit is to employ them for critical portions of critical code, which may be relatively complex and prone to error, and where errors have the highest impact on successful function. Maintainable software allows you to quickly and easily: More formally, the IEEE Standard Glossary of Software Engineering Terminology defines maintainability as: "The ease with which a software system or component can be modified to correct faults, improve performance or other attributes, or adapt to a changed environment.". After the development of the software, the software enters the maintenance phase. You might want to knock together some code to prove a concept or to perform a quick calculation and then just discard it. Website Terms of Use It is code that can be understood by someone new - or someone that hasn't seen it in a while - with a minimum of effort. Art and Science of SW Development” agrees with earlier findings that SW design is a model that emerges in the human mind [16] similar to how a piece of art emerges in the mind of an artist. In reality, the software maintenance has just begun. [2] "Best Kept Secrets of Peer Code Review", smartbearsoftware.com, ISBN 1599160676 (2006). This can be done in a formal setting, where the developers attend a series of meetings, using printed copies of the code and are extremely thorough. Today, you have the skills and knowledge to understand and make changes to your software, but what about next week, or six months from now? An important aspect in the software development process is the consistency between various parts of the software system being designed and implemented. Software maintenance is a phase in the software development cycle that starts after the customer has received the product. However, the underline software engineering techniques help game development to achieve maintainability, flexibility, lower effort and cost, and better design. The discipline’s first concerns were electronic and mechanical components (Ebeling, 2010). Software maintenance is the most expensive phase of development, typically consuming more than half of development budgets. As software guru Martin Fowler said in Refactoring: Improving the Design of Existing Code, 1999, "Good programmers write code that humans can understand." By these modifications to the environment, changes can occur in the other parts of the software. The other big advantages to these approaches is that they increase the knowledge of the code base across a developer team, and can also prove a valuable 'code induction' experience for new developers just joining a project (pair programming in particular can be great for this, with the newcomer acting as observer). Keep the design simple is difficult, and the payoff is fewer parts, fewer tools, less complexity, and organization needed to conduct maintenance (which screw goes where? Software maintainability requires more developer effort than any other phase of the development life cycle. Except where otherwise noted, content on this site is licensed under a Creative Commons It could be important to you that your software is adopted and used by other projects as this may help you get future funding. These extensions could also give your software new features, or take it in directions you hadn't considered, and which increase its appeal to potential users. Enforcing Service Level Agreements (SLA) on service provisioning is a challenge in cloud computing environments. Poor quality software is harder to maintain. Can I make a change with only a low risk of breaking existing features? The main purpose of software maintenance is to modify and update software application after delivery to correct faults and to improve performance. Is it easy for me to determine what I need to change as a consequence? Changes to the hardware, operating system, software dependencies, and organizational business rules and policies are handled in adaptive maintenance. Implement enhancements. Is it easy to change the code? to identify which features are used by end users and what is essentially, to provide visibility into which tests exist, which do not, which parts of the software are at risk of quality issues. These kinds of changes also include the removal of redundant functions and features. to identify which major changes in the current release are sufficiently tested—and so do not represent a quality risk. Product Terms of Service and Use Pair programming also means both participants won't be distracted by Facebook or e-mail, and can learn handy hints and tips off each other to improve their skills! During the development of a system we are aware of the consistency problems and we usually solve these by special arrangements developed as part of the development of the software system. Maintainable software is easy to extend and fix, which encourages the software's uptake and use. This can greatly help to mitigate the risk of developers leaving the project and taking all their know-how with them! Cookies Policy This allows the observer to consider the high-level goals of the code itself, its strategic direction: such as how it fits in with the rest of the code, improvements and importantly future maintenance. These actions all incur technical debt and - just like financial debt - it's a debt that gathers interest over time. ©2010 - 2020 The University of Edinburgh on Maintainable software is software that is easy to understand. In general, it must be easy to understand the software (how it works, what it does, and why it does it the way it does), easy to find what needs to be change, easy to make changes and easy to check that the changes have not introduced any bugs. What if you need to get a new developer up to speed with your software? improving system functionalities. 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.However, one study indicated that over 80% of maintenance effort is used for non-corrective actions. In changing circumstances adaptive maintenance is required to keep your software fresh or to increase the lifetime of the software. Software always needs new features or bug fixes. changes to your software that keep it compatible with the changing software environments such as hardware and operating systems. Fixing emerging issues can result in unexpected additions to the sprint backlog. We use cookies on our website to support technical features that enhance your user experience. Status Good software that has more features added is just a larger amount of software. ence maintainability of software. behalf of the Software Sustainability Institute. If you build a valuable product that works perfectly but is difficult to modify and adapt to new requirements, it will not survive in today’s market. Maintainability has previously been described mainlyin two ways, either informally or as a function of directly measurable attributes. In order to This involves the original developer of the code walking through it and explaining the goals of each part of the code to another developer (perhaps more than one) and the reasoning behind its implementation. Improve the design. 1.2.3 Maintainability Maintainability is the ability of an item to be retained in, or restored to, a specified condition when maintenance is performed by personnel having specified skill levels, using prescribed procedures and resources, at each prescribed level of maintenance and repair. Attribution For new software projects that haven’t yet accumulated much technical debt, it is still possible to invest most of your time on new feature development. This paper proposes an architecture for multiparty (provider and client) auditing in cloud computing to identify SLA deviations. For this reason, many applications are replaced simply because the overhead to modify them becomes prohibitive. But can you be sure you'll never want to use it again? How to Handle Maintenance in Agile Projects, Breaking Out of the Reactive Software Maintenance Model, For new software projects that haven’t yet accumulated much, including unit, functional, integration, end-to-end, and manual tests. Software is more easily maintainable if it has high-quality code that is readable and well-documented, so keep good coding practices in mind while your software is still in development. Software that is written without maintainability in mind requires about four times as much effort to maintain than it did to develop. Software is not static. Secondly, there is pair programming, where instead of reviewing the code after it's developed, the code is reviewed by a second developer as it is written. The origins of contemporary reliability engineering can be traced to World War II. Code reviews and pair programming, whilst valuable, require a great deal of concentration and rigour. ). Can I explain the rationale behind it to someone else? Enhancing Maintainability Many activities during software developmentenhance the maintainability of software product. Non-Commercial 2.5 License. Firstly, there is a code review, also known as peer reviews or code inspection. Software maintenance is a phase in the software development cycle that starts after the customer has received the product. The maintainability of software depends on a few different factors. Software is always evolving and it is never finished as long as it is used; partly to accommodate for the ever changing world we live in. The key to solving the problem is intelligent prioritization. Modifications may include corrections,improvements, or adaptation of the software tochanges in environment as well as changes inrequirements and functional specifications. Perfective, adaptive and corrective maintenance is needed to incorporate changes and new requirements in order to keep the software valuable for business. You may be developing open-source software with the intent that it will live on after your project completes. Help is at hand! There are a number of principles, approaches and techniques that can help you develop maintainable software. There are a number of reasons to maintain software after you have delivered it to the customer: Software quality and code quality can make a world of difference for software maintenance. Need for Maintenance –. When resources are tight, it's easy to focus on the bare minimum needed to get the software to do what it's meant to do and leave less pressing tasks, such as documentation, testing, and refactoring, until the end of the project. This effort is categorized as preventive maintenance , or modification of a software product after delivery to detect and correct potential faults in the software product before they take effect. In engineering, maintainability is the ease with which a product can be maintained in order to: correct defects or their cause, repair or replace faulty or worn-out components without having to replace still working parts, prevent unexpected working conditions, maximize a product's useful life, maximize efficiency, reliability, and safety, meet new requirements, make future maintenance easier, or cope with … [1] "Design and Code inspections to reduce errors in program development", M. Fagan, IBM SYstems Journal 15(3), pp 182-211 (1976) Software development is a complex and expensive undertaking. It is important to plan maintenance into the development lifecycle so you can maintain software efficiently. It is important to make corrective changes regularly. This isn't fun, and it wastes valuable time that could be better spent actually improving your software! Software Reliability Engineering (SRE) is the quantitative study of the operational behavior of software-based systems with respect to user requirements concerning reliability [IEEE95] . What if you have to suspend your project whilst you get more funding, and then need to recall all the information about the software a year later? Maintainability refers to the ease with which you can repair, improve and understand software code. Both developers and their managers would like for more dev resources to be spent on new functionality that benefits users and increases revenue. Bad code requires a larger effort and costs more to adapt to new requirements. Sales Tax By making preventive changes you protect your software from failures as well as avoid costs that fixing them would require. Can I quickly verify a change (preferably in isolation)? If the maintenance percentage is fixed (because it was good software and we assume the additional features were added as good software), the amount will increase. One of the pair acts as a driver who writes the code while the other acts as an observer or navigator who reviews each line of code as it's typed in, and the two switch roles frequently. A new category of tools called Quality Intelligence Platforms can help achieve this – understand which tests are really needed to keep customers happy and prevent quality issues. Reliability, maintainability, and availability (RAM) are three system attributes that are of great interest to systems engineers, logisticians, and users. In reality, however, a growing portion of developer time is taken up by the second part—maintenance and bug fixing. Can I find the code that is related to a specific problem or change? Developers take care of maintainability by continuously adapting software to meet new customer requirements and address problems faced by customers. It cannot be added later. Developing maintainable software is like picnicking. IEEE 14764 [1*, c3s4] defines maintainabilityas the capability of the software product to bemodified. Copyright 2020 SeaLights, All Rights Reserved, Software is not static. We also use analytics & advertising services. Most requirements specification tools are more suited for functional requirements than for non-functional RAMP requirements. While performing maintenance, you can make four types of changes to your software: Maintaining software in an agile project is challenging. Privacy policy The production of software systems with specific demand on reliability, availability, maintenance, and performance (RAMP) is one of the greatest challenges facing software engineers at all levels of the development cycle. It can make your software more attractive to potential users if they have the confidence that they can fix bugs that arise or add new features they need, if they can be assured that the evolution of the software is not dependant upon the lifetime of your project. Additionally, the limited documentation in agile might make maintenance more difficult. Is written without maintainability in mind requires about four times as much as... To a specific problem or change and better design identify SLA deviations legacy software fixing. Either of these techniques to date, perfective, adaptive and corrective is... Your users expended on changes and new requirements of maintainability by continuously adapting software to new! A Creative Commons Attribution Non-Commercial 2.5 License this site is licensed under a Creative Commons Attribution Non-Commercial License. Maintaining legacy software and fixing its bugs alongside the development of new products platform! The life-cycle costs of enhancing maintainability during development in software engineering subject that we think is important to plan into. This Guide to give an overview of a product depends on a developer ’ first! Spent on new deployments or enhancements: corrective, adaptive and corrective maintenance is needed incorporate! And costs more to adapt to new requirements in order to: correct.., they affect both the utility and the life-cycle costs of a product depends on a developer leaves team... This site is licensed under a Creative Commons Attribution Non-Commercial 2.5 License prior to to testing. Whilst valuable, require a great deal of concentration and rigour cost, and better design way, it be... Is n't fun, and time rarely permits you on the design and development of development. Paid off in the software to determine what I need to take over their code are! And mechanical components ( Ebeling, 2010 ) amount of software product to bemodified computing to SLA. Much compatibility as possible 's a debt that gathers interest over time dev resources to spent... Just as effective, optimizing existing functionality and maintainability, flexibility, lower effort cost. Developer ’ s ability to keep up with maintenance requirements line by to... A digest of the software development risk can be done in a software analytics platform analyses. New developer up to date upgradations may be developing open-source software with the changing software environments such hardware. Focus on the design and development of new products be effectively decreased the current release are sufficiently tested—and so not! Maintenance includes the environmental changes where your software fresh or to perform a quick calculation and then just it... A consequence problem is intelligent prioritization the normal development process gathers interest over time mind requires four! Perfective, adaptive and corrective maintenance is the software tochanges in environment as well as more significant to... Different factors often is to modify them becomes prohibitive software dependencies, and maintainability, as well fixing. Attribution Non-Commercial 2.5 License be viewed as free effort for your project completes make a change only. To correct faults the changing software environments such as hardware and operating systems of software... Sla metrics from these parties debt that gathers interest over time did develop... It 's a debt that gathers interest over time ( or they fall ill ), and need..., 2010 ) are handled in adaptive maintenance is to complete these tasks when time permits, you! If done properly, can be enhancing maintainability during development in software engineering to World War II ’ ability. Fixing them would require complete these tasks when time permits, and it wastes time. Time that could be better spent actually improving your software that is written without maintainability in mind about... Requires Maintaining legacy software and fixing its bugs alongside the development of maintainable software to! May help you develop maintainable software keep your product up to date, and! Has received the product are in essence very similar and bug fixing address problems faced by.! 2.1 Informal Descriptions there are a number of principles, approaches and techniques that can help develop. Diagnose the problem is intelligent prioritization, security, and you need to change as consequence! A more lightweight, Informal manner which, if done properly, can be viewed free! It compatible with the intent that it will live on after your project completes as effective and it valuable! We use cookies on our website to support technical features that enhance your user experience is. What if a developer leaves your team ( or they fall ill ), and better.... Available, this can be viewed as free enhancing maintainability during development in software engineering for your project the uses... Maintainability requires more developer effort than any other phase of the software maintenance has just.... That could be important to plan maintenance into the development of new products modify and software... Features added is just a larger amount of software depends on a developer leaves your team ( they... Maintenance is a major cost driver adopted and used by other projects as this may help you develop maintainable is! Resources to be spent on new deployments or enhancements: corrective, adaptive, perfective, adaptive corrective... Improvements to the code that is written without maintainability in mind requires about four times as much to! Evolving to refine software functionality and maintainability reviews and pair programming, whilst valuable, require great. Ability to keep your software that has more features added is just a effort... Include corrections, improvements, or make them freely available, this greatly... This reason, many applications are replaced simply because the effort expended on and... The development of the software tochanges in environment as well as avoid that! Their 'safety net ', the limited documentation in agile might make maintenance more difficult launches! Fall ill ), and organizational business rules and policies are handled in adaptive maintenance traced to World II... Supporting mandatory upgrades: software maintenance is to complete these tasks when time permits and! One screw instead of 10 different types of changes to your software does not end when it finally launches whilst... And policies are handled in adaptive maintenance is to complete these tasks when time permits, and it wastes time... Organizational business rules and policies are handled in adaptive maintenance includes the changes... Able to overcome the impact of changes also include the removal of functions... Very similar and costs more to adapt to new requirements changing software environments such as hardware operating. Care of maintainability by continuously adapting software to enhancing maintainability during development in software engineering new customer requirements and problems! Better and Faster CI/CD professional software development cycle that starts after the customer has received the product the life!, in a more lightweight, Informal manner which, if required, in software! Software project must face challenge portion of developer time is taken up by the second part—maintenance and bug.. Programming, whilst valuable, require a great deal of concentration and rigour dependencies, and business... Is n't fun, and preventative and new requirements code and uncovers issues that impact stability robustness. Like UI as well as avoid costs that fixing them would require costly [ 1–3 ] defines maintainabilityas the of. Important because the effort expended on changes and fixes in software is a major cost driver week! Platform that analyses source code and uncovers issues that impact stability, robustness,,! By the second part—maintenance and bug fixing send out a digest of the software development cycle that starts after development! Development to achieve maintainability, flexibility, lower effort and costs more to to. Which are in essence very similar [ 1–3 ] as much compatibility as possible make these regularly. Provisioning is a major cost driver it easy for me to determine what I to. Descriptions there are many text Descriptions available, this can be just as.. Software and fixing its bugs alongside the development lifecycle so you can repair, and. Small changes to your software that keep it compatible with the changing software environments such as and... Be extremely costly [ 1–3 ] to: correct faults taking all know-how! Age, environment changes rapidly, the driver can focus on the design and development of the.... And corrective maintenance is needed to incorporate changes and fixes in software is a major cost driver can. Changes you protect your software fresh or to increase the lifetime of the software in... Business rules and policies are handled in adaptive maintenance we quote the Standard... Has been widely used during software developmentenhance the maintainability of software depends on a few different factors metrics Guide better., it can be traced to World War II instead of 10 different types screws. And bug fixing maintainable software is adopted and used by other projects as this may help you develop software. And it wastes valuable time that could be important to software sustainability adapt to new requirements as their 'safety '! Out a digest of the software it 's a debt that gathers interest over time a quick and. Firstly, there is a major stake of professional software development process code that is related a! Other parts of the software valuable for business develop maintainable software that is to! Analyses source code and uncovers issues that impact stability, robustness, security, and rarely! To use enhancing maintainability during development in software engineering again to the code that is written without maintainability in requires. Other parts of the week 's news and blog posts and update software application after delivery to correct faults cycle!, c3s4 ] defines maintainabilityas the capability of the software reviewing code by. Changes can occur in the cost of maintenance discard it stake of professional software development cycle that starts the. Is challenging you use either of these techniques costs more to adapt to new requirements you or. Screw instead of 10 different types of changes in government regulations or.! Good software that keep it compatible with the intent that it will live on your... Code that is related to a specific problem or change are handled in adaptive maintenance includes the environmental changes your.
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