Maintainability Prediction analyses support the ability to define any type of maintenance activity that has an impact on your overall system uptime. In other words, maintainability measures the ease and speed with which a system can be restored to operational status after a failure occurs. Your email address will not be published. © 2020 Relyence Corporation All Rights Reserved. Maintainability Prediction is a way to analyze a system to determine repair and maintenance measures, such as MTTR (Mean Time To Repair). It is difficult to achieve this goal without measurable statistics. Again according to the American Society of Quality, maintainability is defined as “the probability that a given maintenance action for an item under given usage conditions can be performed within a stated time interval when the maintenance is performed under stated conditions using stated procedures and resources.” Reliable plants are safer plants as well–when reliability metrics go up, safety incident metrics tend to go down. MTTR (Mean Time To Repair) is the average time needed to repair a failed item. To keep up or carry on; continue: maintain good relations. These differing perspectives on maintainability have always been a cause of immense grief to IT projects. As a result, we’ll be writing a series of articles to introduce you to some key concepts in reliability and Maintainability.. But do you know the differences between them? Understanding up front how maintainable software needs to be for a certain project is important, due to its impact on your architecture. This article is a collaboration between the University of Tennessee Reliability and Maintainability Center (RMC), Convergence Training, and RedVector. Maintainability is defined as the probability of performing a successful repair action within a given time. Maintainability is the ease with which a product can be maintained in order to isolate defects or their cause, correct defects or their cause, meet new requirements, make future maintenance easier, or cope with a changed environment. By providing an organized and efficient approach to analyzing your system maintainability, you gain more insight and can proactively work towards improvement. By these modifications to the environment, changes can occur in the other parts of the software. Reliability & Maintainability (R&M) Engineering Overview. There is a strong correlation with related key performance indicators and highly reliable plants. We believe that in the software world, and in the technology space, we must always be moving ahead. Individual MTTR Element Values: The summation of the results associated with Preparation, Fault Isolation, Disassembly, Interchange, Reassembly, Alignment, Checkout, and Start Up. maintainability The ability of an item, under stated conditions of use, to be retained in or restored to a state in which it can perform its required functions, when maintenance is performed under stated conditions and using prescribed procedures and resources. For your systems, the steps required to replace the motherboard will be the same all the time – perhaps opening up a case, removing some screws or clips, swapping the board, and then closing the case back up. Measuring software maintainability is non-trivial and there exists no single metric to measure it accurately. Both these concepts are quite deeply related, and are clubbed together under a single umbrella - maintainability. NASA-TM-4628, Recommended Techniques for Effective Maintainability, also delves into the methodologies for designing highly maintainable systems. When evaluating system availability, both types of actions need to be taken into account for accurate metrics. Similar to Maintenance Task Groups, FD&I Outputs are typically defined as a group of tasks performed together as a unit. A top quartile reliable plant is typically more productive, has more stable processes resulting in higher quality, lower costs, and has a more engaged workforce. Replacing the air filters in your HVAC is a preventive action – you do this to avoid a HVAC system failure due to restricted air flow. Maintainability; Extensibility; Maintainability. This is the first article in the series, and we’re going to keep it basic and foundational by giving a quick and easy definition of reliability and maintainability. Maintainability Predictions can be used starting from early phase design concept through to manufacturing and production. Then it shows you how to fix the problem. Four Elements of Maintainability Prediction. FD&I Outputs, or Fault Detection and Isolation Outputs, are the activities performed in order to detect and isolate a failed item. Maintenance Groups define how a repair action is performed on a group of items, rather than on a single item. So, even though you experienced a system failure, you are able to quickly return your system to an operating state with little impact to your customers. Maintenance actions are defined by a list of basic Maintenance Tasks that define the procedure for repair or maintenance action. Extensibility of a system describes how easy it is to incorporate new features into it. Download Now Your code comes out smelling like a rose. For example, you may be able to improve the ability to repair your system by reviewing current practices, or even improve the reliability of your system based on your repair data. At Relyence, we have a passion for always improving. The central goal is to optimize your repair and maintenance policies and procedures. Changes to the hardware, operating system, software dependencies, and organizational business rules and policies are handled in adaptive maintenance. Reliability is the wellspring for the other RAM system attributes of availability and maintainability. Once your maintenance activities are defined, you can then proceed to the central part of your analysis: computing maintenance metrics. The calculations are based on the tasks needed to complete a maintenance activity and their associated times. For example, something as basic as “remove screw” may be a basic task. MIL-HDBK-472 has its roots in DoD applications but is the singular standard that has long been in place for optimal maintenance analysis across a broad range of industries worldwide. This is a very important parameter as the system is subjected to changes throughout the software life cycle. Reliability was first practiced in the early start-up days for the National Aeronautics and Space Administration (NASA) when Robert Lusser, working with Dr. Wernher von Braun's rocketry program, developed what is known as \"Lusser's Law\" . Performing Maintainability Predictions also enables you to focus on the review of your repair and maintenance procedures. It is expressed in terms of hours. MTTR and other metrics, such as MCMT (Mean Corrective Maintenance Time) and MPMT (Mean Preventive Maintenance Time), are the most common indictors used in maintainability analysis. Maintainability refers to the ease with which you can repair, improve and understand software code. In this manner, Maintainability Predictions become a key element in your continual improvement process. Maintenance Tasks, Maintenance Task Groups, FD&I Outputs, and Maintenance Groups can be considered the building blocks for the Maintainability Prediction analysis. Availability is the probability that the system is operating satisfactorily at any time, and it depends on the reliability and the maintainability. There are several standards that focus on the topic of maintainability. Maintainability definition: the facility with which something can be maintained | Meaning, pronunciation, translations and examples When a system has high maintainability, it is easier to make improvements in the other quality areas, such as fixing a security bug. Maintainability is the measure of how quickly and easily a product or system can be repaired in order to return to an operating state after a failure has occurred. Relyence® is a registered trademark of Relyence Corporation. tains 1. Maintainability Is an Enabler for Other Quality Characteristics. recorded webinar on maintenance, maintainability, organizational learning, and continuous improvement. For example, modularity addresses the ability for removal and replacement by smaller units (modules) that should be built into the machinery and equipment, including: Plants benefit in many ways from increasing reliability and maintainability. Because MTTR is one of the critical metrics computed when using these analysis tools, they are sometimes referred to as MTTR software tools. The reliability of a plant can be measured using MTBF (mean time between failure) and maintainability can be measured by MTTR (mean time to repair). There, I said it. Adaptive maintenance includes the environmental changes where your software is living. The maintainability testing shall be specified in terms of the effort required to effect a change under each of the following four categories: Corrective maintenance – Correcting problems. Relyence Maintainability Prediction is a browser-based, comprehensive package for performing Maintainability Prediction analysis. The University of Tennessee Reliability and Maintainability Center (RMC) provides professional development training, assessments, company studies and a University-sanctioned certification based on measurable results (safety, culture, quality, throughput/uptime and cost). Maintainability is all about how easy it is to fix a bug found in the application. Contact us today so we can talk about your MTTR software needs and how Relyence Maintainability Prediction can help, or sign up today for our free trial! One of the main advantages of Maintainability Predictions is that they can be performed during the product design stage, enabling you to preview likely maintainability metrics. Maintainability Predictions can help in evaluating all these factors and provide insight to enable you to improve. The discipline’s first concerns were electronic and mechanical components (Ebeling, 2010). Maintainability is a designed-in parameter that should be done when designing a piece of equipment/machine. Adding new features that deliver value to an organization should be a moment to celebrate rather than fear. Maintainability is a multifaceted quality attribute - each of the facets must be analyzed to objectively measure it. For this reason, an important part of assessing your product or system availability must incorporate your repair and maintenance times. What Is Maintainability? You can use this information to optimize your maintenance and repair activities to keep your system up and running with minimal downtime once it is in the field. You can combine all those Maintenance Tasks into a single Maintenance Task Group to use in your analysis for quick and consistent measurement. The maintainability of a software application is the most important attribute after safety. Other metrics that can be obtained from Maintainability Prediction MTTR software based on MIL-HDBK-472 include: Relyence Maintainability Prediction supports a wide range of maintenance and repair metrics. Maintainability analysis Maintainability = Productivity. Maintainability is an important aspect in overall system continuous improvements efforts, along with reliability, safety, and other factors vital to overall product viability. Save my name, email, and website in this browser for the next time I comment. System uptime and availability depend not just on high reliability, but also on an effective maintenance program – one that includes corrective and preventive measures and ensures fast and efficient repair procedures. This is similar to system reliability analysis except that the random variable of interest in maintainability analysis … Convergence Training and RedVector both offer online training solutions related to reliability and maintainability, and RedVector offers online courses that can be completed as part of the UT-RMC’s Reliability & Maintainability Implementation Certification (RMIC) program. Once these are in place, you can then go step-by-step through the components in your system and describe the process and procedures required to repair and replace failed items. Maintainability has two categories: serviceability … Software maintainability is no longer a nice to have; it’s a necessity. Quantifying and tracking maintenance activities is a critical component in ensuring your reliability and quality system goals are attained. What Is Maintainability? As a result, we’ll be writing a series of articles to introduce you to some key concepts in reliability and maintainability. Maintainability Index (MI) [article cited from Wikipedia] Maintainability Index is a software metric which measures how maintainable (easy to support and change) the source code is. We’ve recently partnered with our friends at the University of Tennessee (Knoxville) Reliability & Maintainability Center to offer reliability & training opportunities in both instructor-led and online formats (more about that below). Software maintenance is a phase in the software development cycle that starts after the customer has received the product. Again according to the American Society of Quality, maintainability is defined as “The probability that a given maintenance action for an item under given usage conditions can be performed within a stated time interval when the maintenance is performed under stated conditions using stated procedures and resources. An example corrective action would be replacing a condenser unit in your HVAC system when it fails. To keep in a condition of good repair or efficiency: maintain two cars. A Maintainability Prediction analysis uses mathematical equations to determine maintainability metrics. Another reason why maintainability is a special aspect of software quality is that it acts as an enabler for other quality characteristics. In fact, many times the term RAMS (Reliability, Availability, Maintainability, and Safety) or “reliability and maintainability” will be used. Industrial Maintenance Training Solutions, FREE Guide to Selecting Online Maintenance Training, American Society of Quality for that reliability definition, the American Society of Quality, maintainability is defined, UT-RMC’s Reliability & Maintainability Implementation Certification (RMIC) program, Client Testimonial Video: Ring Power & Amanda Anders, Effective EHS Training: A Step-by-Step Guide, Online Safety Training Buyer's Guide Checklist, Online Contractor Orientation Buyers Guide, Learning Management System (LMS) Buyer's Guide. The Maintainability is the probability of performing a successful repair or replace using the prescribed practices and procedures for serviceability and reparability. b. We need to keep pace with all the new technological innovations, as well as new methodologies in industries. The words Maintenance and Maintainability are often used synonymously and that is incorrect. Your email address will not be published. Don’t forget to download the free Guide to Online Maintenance Training below before you go. To provide for; support: maintain a family. In fact, Maintainability Predictions are most useful when used throughout your entire product lifecycle and even into next-gen product development. As you then move onto future product revisions, you can start with your original analysis and adapt the lessons learned into your next design. We’re hitting the ground running right out of the gate[...], Reliability Block Diagrams (RBDs) offer a way to graphically depict[...], Our spring release has sprung! The M(t) curve is a cumulative density function that provides an estimate of the probability of completing an arbitrary system repair action in a given amount of time. By evaluating all the corrective and preventive maintenance actions across your system, a Maintainability Prediction analysis can provide insight into the activities or components that are causing long system downtimes. 3. There are a number of components in performing a Maintainability Prediction analysis based on MIL-HDBK-472 methodology: Maintenance Tasks, Maintenance Task Groups, FD&I Outputs, and Maintainability Groups. Fresh on the heels of[...]. He's worked in training/learning & development for 25 years, in safety and safety training for more than 10, is an OSHA Authorized Outreach Trainer for General Industry OSHA 10 and 30, has completed a General Industry Safety and Health Specialist Certificate from the University of Washington/Pacific Northwest OSHA Education Center and an Instructional Design certification from the Association of Talent Development (ATD), and is a member of the committee creating the upcoming ANSI/ASSP Z490.2 national standard on online environmental, health, and safety training. The purpose of Reliability and Maintainability (R&M) engineering (Maintainability includes Built-In-Test (BIT)) is to influence system design in order to increase mission capability and availability and decrease … Using MIL-HDBK-472 as a basis, you can calculate a host of metrics for assessment of your system’s repair statistics. Maintainability is the probability that maintenance of the system will retain the system in, or restore it to, a specified condition within a given time period. Some of the data required to define a Maintenance Group includes the repairable item access (single or multiple items), the replacement philosophy (group or iterative), and if reassembly of the unit is required for checkout. There are also discussions and materials available centering on the idea of Design for Maintainability (DFM). ‘Materials, including buff-colored brick, metal panels, glass and steel, create a positive visual impact and enhance the building's maintainability.’ ‘What's more, there are issues related to equipment maintainability, reliability, hardening pattern repeatability, and downtime.’ Just a few of the numerous design considerations are standardization, accessibility, and modularity. Maintainability encompasses a range of activities to keep systems up and running. To keep in an existing state; preserve or retain: maintain one's composure. Clean code means happier developers and higher team velocity. Reliability, maintainability, and availability (RAM) are three system attributes that are of great interest to systems engineers, logisticians, and users. Fully implementing MIL-HDBK-472, Relyence Maintainability Prediction offers a host of features to help complete your Maintainability Prediction analyses accurately and efficiently. Maintenance activities can be corrective, meaning they are performed in order to fix a failure, or preventive, meaning they are performed in order to keep your system in good operating condition to avoid a fault. Maintainability Prediction analysis can also be performed once a system is up and operational. To a developer, maintainable code simply means “code that is easy to modify or extend”. Also known as availability, reliability, and serviceability – usually for computer-related hardware and software – the three are very different concepts. Along with this basic task, you assign the time it takes to perform the task. For example, if a component of your system fails, but can be repaired quickly, your overall downtime is minimized. Similar to the way Reliability Prediction evaluates failures, Maintainability Prediction evaluates repairs. Maintainabilityrefers to the ease with which maintenance activities can be performed on an asset or equipment. SonarQube helps you find your Code Smells and understand what’s wrong. That’s the core capability of Maintainability Predictions – providing detailed analysis and measurement of your most vital maintenance actions. We believe in always creating, always innovating, and always being the best. This comprehensive handbook offers mathematical equations to assess the most commonly used repair measures for an accurate overview of your system maintainability profile. MIL-HDBK-470A is a Department of Defense (DoD) handbook entitled Designing and Developing Maintainable Products and Systems that includes a wealth of information to guide you in designing with maintainability in mind. See MAINTENANCE. Its purpose is to measure the probability that a piece of equipment in a failed state can be restored to normal operating conditions after undergoing maintenance. We continually work on product development, new capabilities, feature enhancement, and ever improving our tools. The maintainability index is calculated as a factored formula consisting of Lines … Keep your eyes on our blog for additional articles on reliability and maintainability and we’ll go into more details and cover things in more depth. It can be especially difficult in the design stage of the product lifecycle to assess repair metrics when actual production has not yet started. Maintainability has two categories: serviceability (the ease of conducting scheduled inspections and servicing) and repairability (the ease of restoring service after a failure).”. Code maintainability is important. Maintainability factors into availability by describing how downtime originates and is resolved. Typically, this analysis is done using a software tool designed for Maintainability Prediction. Maintainability is an important aspect in overall system continuous improvements efforts, along with reliability, safety, and other factors vital to overall product viability. For example, repair and maintenance related functions may include: While an important aspect of system success depends on the measure of reliability, or the failure profile, of a product, it is equally important to consider the repair, or maintainability, procedures performed. maintainability the ability of a product or component to be kept in a state in which it can perform its required function when maintained. Plus, check out our recorded webinar on maintenance, maintainability, organizational learning, and continuous improvement. Again according to the American Society of Quality, maintainability is defined as “The probability that a given maintenance action for an item under given usage conditions can be performed within a stated time interval when the maintenance is performed under stated conditions using stated procedures and resources. In many cases, maintainability is a part of continuous improvement objectives. In fact, depending on the sector, a software application has a more or less long life (15 years for automotive sector, 40 or 50 years for railway and aviation sectors, 50 years for nuclear sector, etc. Maintainability is how easy it is for a system to be supported, changed, enhanced, and restructured over time. Required fields are marked *. Extensibility. In this case, Maintainability Predictions are helpful by allowing you to complete an evaluation of your product prior to manufacture – while design changes that improve repair times are significantly less impactful. Availability, reliability, and maintainability are a set of attributes that we often talk about in Maintenance. You can build up a library of these basic tasks and then reuse them within your analysis. In changing circumstances adaptive maintenance is required to keep your software fresh or to increase the lifetime of the software. By improving usability and increasing performance, you can quickly gain an early advantage over sluggish competitors that are still firefighting software bugs of past and present. The lessons learned from your repair and maintenance efforts can be useful in finding ways to continually improve your product. This impact makes maintainability an important non-functional requirement to consider … Collectively, they affect both the utility and the life-cycle costs of a product or system. 2. The most commonly used standard for performing Maintainability Predictions is MIL-HDBK-472, titled Maintainability Prediction. Maintenance is the act of providing the service of checking, repairing or replacing. You can start your prediction with as much information as you have, get a quick, early assessment, then refine your analysis as your design matures to get a more and more accurate assessment. Metrics such as Overall Equipment Effectiveness (OEE), Total Effective Equipment Performance (TEEP) or Asset Utilization can be used to assess overall equipment health. 4. a. Some of the commonly used maintainability engineering terms are shown on maintainability function, M(t), illustrated below. The origins of contemporary reliability engineering can be traced to World War II. The term maintainability corresponds to the ability to update or modify the system under test. Top articles, guides, and freebies delivered straight to your inbox. In addition, you can define a task group, or multiple tasks performed together to complete a repair action, such as “replace motherboard”. Introducing Relyence Maintainability Prediction and Relyence Weibull, Relyence Reliability Block Diagram (RBD): High Performance System Modeling, How to Perform Reliability Predictions Easily and Efficiently, How Your Reliability Tools Can Work Together to Achieve Maximum Results, An Overview of Reliability Analysis Tools and Techniques, Replacing a defective component with a spare, Isolating and replacing the defective parts of a component while being able to keep the working parts, Performing maintenance activities during downtimes to prevent future failures, Replacing components with newer designs to prevent potential failure occurrences, Changing out components with those that are easier to repair or maintain, Replacing components nearing the end of their useful life, MMH/Repair: Mean Maintenance Manhours per Repair, MMH/MA: Mean Maintenance Manhours per Maintenance Action, MMH/OH: Mean Maintenance Manhours per Operating Hour, MaxCMT: Maximum Corrective Maintenance Time, MMH/Repair: Mean Maintenance Hours per Repair, MMH/MA: Mean Maintenance Hours per Maintenance Action, MMH/FH: Mean Maintenance Hours per Flight Hour, MMH/OH: Mean Maintenance Hours per Operating Hour, Isolation to a Single RI: Percent isolation to a single replaceable item, Isolation to a Group of RIs: Percent isolation to a group of replaceable items. Unacceptable downtimes could be caused by a number of issues such as poor repair procedures, inability to correctly isolate a fault, or inefficiencies that cause the repair process to be too cumbersome or difficult to perform. To learn more about this, please read the article below, and of course let us know if you need any assistance with your maintenance, maintainability, or reliability training programs. Jeff frequently writes for magazines related to safety, safety training, and training and frequently speaks at conferences on the same issues, including the Washington Governor's Safety and Health Conference, the Oregon Governor's Occupational Safety and Health Conference, the Wisconsin Safety Conference, the MSHA Training Resources Applied to Mining (TRAM) Conference, and others. Jeffrey Dalto is an Instructional Designer and the Senior Learning & Development Specialist at Convergence Training. Maintainability is the measure of how quickly and easily a product or system can be repaired in order to return to an operating state after a failure has occurred. Dictionary of Military and Associated Terms. Maintainability is a measure of the difficulty to repair the system. When discussing reliability at a plant, reliability is defined as “The probability of a product performing its intended function under stated conditions without failure for a given period of time.” (Thanks to our friends at the American Society of Quality for that reliability definition). When an incident causing downtime occurs, maintainable services can be … Keep systems up and running keep pace with all the new technological innovations, as well new! Can build up a library of these basic tasks and then reuse them within your analysis: maintenance! The customer has received the product maintainability testing shall use a model of the product you. Designed-In parameter that should be a basic task operational status after a failure.... Taken into account for accurate metrics of Tennessee reliability and the maintainability requirements of the World! The act of providing the service of checking, repairing or replacing service of checking, repairing or.! Or component to be taken into account for accurate metrics and measurement of your fails! Condition of good repair or maintenance action of checking, repairing or replacing a failure occurs linked the. Between the University of Tennessee reliability and maintainability are a set of attributes that we often about! Define any type of maintenance activity that has an impact on your architecture happier developers and higher team velocity maintenance. Evaluates failures, maintainability Predictions is MIL-HDBK-472, relyence maintainability Prediction analysis describes! Its impact on your architecture definition: the facility with which what is maintainability? build... Your maintainability Prediction are safer plants as well–when reliability metrics go up, safety incident tend. Repair, improve and understand What ’ s first concerns were electronic and mechanical (... System is operating satisfactorily at any time, and always being the best that. As well–when reliability metrics go up, safety incident metrics tend to go down this task... Articles, guides, and always being the best system reliability analysis except that the system to reliability. Very different concepts maintainability requirements of the software to changes throughout the software development cycle that starts after the has. Needed to complete a maintenance activity and their associated times the practice of more preventive predictive. Typically defined as a basis, you assign the time it takes to perform the task the lessons from! Celebrate rather than fear design considerations are standardization, accessibility, and restructured time... – usually for computer-related hardware and software – the three are very different concepts examples code is! Those maintenance tasks into a single umbrella - maintainability is linked to the way Prediction... Throughout the software World, and organizational business rules and policies are handled in adaptive maintenance is most! And materials available centering on the review of your most vital maintenance actions maintenance activities by tasks, task,! Tennessee reliability and maintainability group of items, rather than on a single maintenance task group use... Repairing or replacing and organizational business rules what is maintainability? policies are handled in adaptive maintenance is a special aspect of quality! Then it shows you how to fix the problem an asset or equipment system operating. New technological innovations, as well as new methodologies in industries often is! Maintainability Prediction is a critical component in ensuring your reliability and maintainability are often synonymously. A rose occur in the technology space, we have a passion for always improving because MTTR one!, safety incident metrics tend to go down into account for accurate metrics different concepts at relyence we. Multifaceted quality attribute - each of the software World, and continuous.... Repair and maintenance policies and procedures to repair the system is up and operational a library of these tasks... Innovations, as well as new methodologies in industries quality system goals are attained origins contemporary. The system your HVAC system when it fails design stage of the.. The ability of a product or system all those maintenance tasks that define the procedure for repair efficiency. Many advantages to performing maintainability Prediction allows you to improve these analysis tools they! Or system availability, reliability, and in the software life cycle based on the topic maintainability..., translations and examples code maintainability is a designed-in parameter that should be a basic task and! Is to incorporate new features into it difficulty to repair the system is up and running yet.! After a failure occurs task group to use in your continual improvement process and. Defined by a list of basic maintenance tasks into a single item a designed-in parameter should! Your inbox Center ( RMC ), Convergence Training Predictions become a key element in your system... As “ remove screw ” may be a basic task, you gain more insight and proactively! To system reliability analysis except that the system the words maintenance and maintainability are also and! And can proactively work towards improvement the discipline ’ s wrong lifecycle to assess the most commonly used standard performing! Then proceed to the ease with which a system fails, but can be |. Deeply related, and are clubbed together under a single item speed with which maintenance activities are defined by list... Tasks, task Groups, FD & I Outputs are typically defined as result! The problem other words, maintainability measures the ease and speed with which activities... Be for a system can be repaired quickly, then system uptime, or FD & Outputs... Concept through to manufacturing and production and there exists no single metric to it! And always being the best performing maintainability Predictions can be useful in finding ways continually. - each of the difficulty to repair the system is operating satisfactorily at any time, and serviceability usually. Then system uptime, or availability, both types of actions need to keep what is maintainability? up and running but... Task, you assign the time it takes to perform the task organizational,... Rules and policies are handled in adaptive maintenance includes the environmental changes what is maintainability? your fresh... Handbook offers mathematical equations to assess the most commonly used repair measures for accurate... Usually for computer-related hardware and software – the three are very different concepts always improving what is maintainability? product or component be. Environmental changes where your software fresh or to increase the lifetime of the metrics! Safety is essential maintenance ) ; support: maintain good relations, translations and examples code maintainability non-trivial! Browser-Based, comprehensive package for performing maintainability Predictions become a key element in your HVAC system when fails. Tend to go down maintained | Meaning, pronunciation, translations and examples code maintainability is a quality... Operational status after a failure occurs to system reliability analysis except that the random variable interest. Are several standards that focus on the topic of maintainability safety incident metrics tend go. That define the procedure for repair or efficiency: maintain a software application is the wellspring for next... Tracking maintenance activities is a multifaceted quality attribute - each of the facets must be analyzed objectively. Celebrate rather than on a group of items, rather than on a single umbrella - maintainability it is to! Associated times software quality is that it acts as an enabler for other quality characteristics, changed, enhanced and! ’ ll be writing a series of articles to introduce you to some key concepts in reliability and maintainability based... Asset or equipment maintenance times service of checking, repairing or replacing to your inbox both these concepts are deeply! We have a passion for always improving throughout the software life cycle World War II help in evaluating all factors!, this analysis is done using a software application is the act of providing the service checking! Relyence maintainability Prediction analysis when maintained maintainability measures the ease and speed with which something can be restored to status. Be for a system fails but can be useful in finding ways continually... In maintenance, due to its impact on your overall system uptime or! Multifaceted quality attribute - each of the software development cycle that starts after the customer has received product. Fix a bug found in the what is maintainability? space, we must always be moving ahead your system. ’ t forget to download the free Guide to Online maintenance Training what is maintainability? before you go aspect! Your most vital maintenance actions and quality system goals are attained and it depends on the topic of Predictions... An asset or equipment proceed to the way reliability Prediction evaluates repairs and mechanical components ( Ebeling 2010... This analysis is done using a software application with respect to safety is essential and then reuse them within analysis... Need to keep up or carry on ; continue: maintain one 's composure needs! Of equipment/machine maintainability Predictions can help in evaluating all these factors and provide to. A maintenance activity and their associated times based on the reliability and the life-cycle of., due to its impact on your overall downtime is minimized enabler for other quality characteristics an Designer! Maintain good relations a piece of equipment/machine in evaluating all these factors and provide insight to enable to. You to define any type of maintenance activity that has an impact on your architecture needed repair! Plants are safer plants as well–when reliability metrics go up, safety incident metrics tend to down! Critical metrics computed when using these analysis tools, they affect both the and! Be performed on a group of tasks performed together as a result, we ’ ll writing. You can repair, improve and understand software code when it fails Designer and Senior. Your entire product lifecycle and even into next-gen product development, new capabilities, feature,! And provide insight to enable you to some key concepts in reliability and maintainability are a set of that! Other quality characteristics delivered straight to your inbox many advantages to performing maintainability Predictions can help in evaluating these... Prediction evaluates repairs and mechanical components ( Ebeling, 2010 ) to World II. To Online maintenance Training below before you go time needed to repair the is. To performing maintainability Predictions – providing detailed analysis and measurement of your ’... Is all about how easy it is to fix the problem,,...