Software Maintenance Metrics Handbook
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Maintenance metrics are measurements that give you insight into how everything and everyone is operating at your facility. They quantify the daily activity of maintenance, and in doing so, paint a picture of how people and assets are working. These numbers also allow you to compare the impact of these actions on the ultimate goals of your department.
For example, the ultimate goal of your maintenance department might be to decrease inventory costs. This is the big boulder that needs to move forward. But there are a lot of different, smaller actions join together to push the boulder, little by little, like inventory accuracy and failure rates. These are maintenance metrics.
For example, your ultimate business goal may be increasing revenue by 20%. Revenue is directly impacted by downtime because the less equipment is running, the fewer products are made and sold. Therefore, one of your maintenance KPIs is downtime. All sorts of quantifiable actions can influence downtime, such as the mean time to repair (MTTR) or planned maintenance percentage. These are your maintenance metrics.
Preventive maintenance software is one of the best tools for collecting accurate information from every asset, work order, and purchase. It also allows you to create processes, like automated reports, that lead to better decision-making. Software, like a CMMS, also makes it easier for people to do, measure, and improve their work.
Metrics that show how well performance targets are being met have long been the poster child of maintenance management metrics, but without the previous establishment of adoption, performance metrics are often very misleading.
However, with a solid foundation, regularly monitored performance metrics are the catalyst for motivating personnel to achieve success. With the combination of strategic and tactical goals, maintenance management can ensure that the right things are getting done and that resources are properly allocated to consistently execute the defined program.
When establishing performance metrics, it is important to consider the operation-specific goals and align them with the maintenance activities that impact them. This will ensure that the proper attention is given both from the maintenance perspective and the overall operational perspective.
Remember, when the three pillars of adoption, performance and improvement metrics are established, management can visualize and prove that their maintenance activities are delivering the highest level of value to the entire organization.
The MSE curriculum covers industry de-facto standard and international standard models in software process, software process assessment and improvement, software requirements, software architectural design, software testing, software project management, software measurement, and software engineering ethics, such as agile processes, Scrum, XP, CMMI/SCAMPI, ISO 12207/15504, ISO/IEEE standards, SESC framework, test process, agile testing, maintenance metrics, Attribute-Driven Design (ADD), estimation and scheduling, project planning, and many current practices in the field.
Predictive maintenance is related to preventive maintenance, but instead of replacing parts on a routine basis, it relies on monitoring to replace parts when they reach the very end of their usefulness. It does this through condition monitoring, usually facilitated by sensors in software. For example, preventive maintenance would have a user replace a belt on a machine every six months regardless of the condition of the belt. It *usually* fails between six and eight months, so better safe than sorry.
Total productive maintenance is only effective if it improves your overall equipment effectiveness (OEE), otherwise, your efforts are for naught. A CMMS enables you to track data such as run time, downtime, ideal cycle time, and other key maintenance metrics that are also used to calculate OEE.
Another classic open source business model is offering support or services. In this model, you anticipate that a percentage of your users will need dedicated help running, setting up, or troubleshooting the software. Going back to our automotive example, this is like an extended warranty plan or a maintenance contract that includes regular oil changes, maintenance, and emergency repairs.
The cloud to some degree can provide a way around this. When people sign up for a cloud-based service they provide their information and grant you authorization both to run the software for them and access more granular metrics on their usage. As a result, you can gain a detailed understanding of their needs. That said, most open source software falls outside of the cloud space. Most cloud providers who provide open source as a service offer the commercialized version of what is already downloadable and installable without a commercial agreement. Still, a large portion of the user base exists that will try out the open source software on their own either via downloaded packages, containers, or building from source. What about getting adoption and usage details for those users
In Software engineering Software Quality Assurance (SAQ) assures the quality of the software. Set of activities in SAQ are continuously applied throughout the software process. Software Quality is measured based on some software quality metrics.
This course is a step by step description of the software metrics. It includes introduction to foundations of measurement theory, models of software engineering measurement, software products metrics, software process metrics and measuring management. The course is composed of the following basic modules: Measurement theory (overview of software metrics, basics of measurement theory, goal-based framework for software measurement, empirical investigation in software engineering) Software product and process measurements (measuring internal product attributes: size and structure, measuring external product attributes: quality, measuring cost and effort, measuring software reliability, software test metrics, object-oriented metrics) Measurement management A workshop (project) is designed to reinforce the presented material.
Agile software development has broken down some of the silos between requirements analysis, testing and development. Deployment, operations and maintenance are other activities which have suffered a similar separation from the rest of the software development process. The DevOps movement is aimed at removing these silos and encouraging collaboration between development and operations.
Often, the easiest metrics to begin with are those already exposed by your operating system to represent the usage of underlying physical resources. Data about disk space, CPU load, swap usage, etc. are already available, provide value immediately, and can be forwarded to a monitoring system without much additional work. Many web servers, database servers, and other software also provide their own metrics which can be passed forward as well.
Another basic requirement is reliability. As a monitoring system is responsible for gathering, storing, and providing access to high value information, it is important that you can trust it to operate correctly on a daily basis. Dropped metrics, service outages, and unreliable alerting can all have an immediate harmful impact on your ability to manage your infrastructure effectively. This applies not only to the core software reliability, but also to the configuration you enable, since mistakes like inaccurate alerting can lead to a loss of trust in the system.
Gathering metrics, monitoring components, and configuring alerts is an essential part of setting up and managing production infrastructure. Being able to tell what is happening within your systems, what resources need attention, and what is causing a slowdown or outage is invaluable. While designing and implementing your monitoring setup can be a challenge, it is an investment that can help your team to prioritize their work, delegate the responsibility of oversight to an automated system, and understand the impact of your infrastructure and software on your stability and performance. 781b155fdc