There are 2 types of software metrics: Product Metrics: Product metrics are used to evaluate the state of the product, tracing risks and undercovering prospective problem areas. Product metrics are combined across several projects to produce process metrics. To measure MTTF, we can evidence the failure da… Establishing a successful company-wide software metrics program can be a multi-year effort.But if we do not measure, there is no real way of determining whether we are improving. Is it worth it to do it? This article explains about what are importance and approaches of software process and product metrics in a very simple manner. If a product does not meet user requirements, then the necessary actions are taken in the respective phase. But at least these are the right things to measure. MTTFis consistent for systems with large transactions. Defect removal efficiency: Quantifies the efficiency with which defects were detected and prevented from reaching the customer. Maintenance practices also improve when the right KPIs are tracked. Schedule variance for a phase = (Actual Calendar days for a phase – Planned calendar days for a phase + Start variance for a phase)/ (Planned calendar days for a phase) x 100. They are used to measure the efficiency and effectiveness of various processes. Gain an understanding of processes, products, resources, and environments. Ans: They focus on the quality of deliverables. ... Agile Principles For Metrics In Software Engineering. Metrics are derived and help us in sense making and planning the next course of action. These in-process metrics and reports cannot be used in a piecemeal fashion. 3. They are used for making strategic decisions. 7) Explain Normalization for Metrics. 4. I also have done MBA from MICA. WANT TO KNOW ABOUT SOFTWARE PEOCESS AND PRODUCT MATRICES, differece between software product and software process. As adjectives the difference between imperial and metric is that imperial is related to an empire, emperor, or empress while metric is of or relating to the metric system of measurement. Size variance = (Actual size – Estimated size)/ Estimated size x 100. 2. Difference between size oriented metrics and function oriented metrics : * Size oriented metrics deals with direct measure of the output and quality whereas Function oriented metrics deals with indirect measure of the output and quality. It’s expressed in monetary terms. This type measures the quality of the software product delivered to the client. Require a level of detail that may be difficult to achieve, 2. They are used to measure the efficiency and effectiveness of various processes. The goal of tracking and analyzing software metrics is to determine the quality of the current product or process, improve that quality and predict the quality once the software development project is complete. Requirement Stability Index: Provides visibility to the magnitude and impact of requirements changes. Read on to find out all you need to know about Project & Process Metrics for Project Management. More consistent product quality. Effort Variance: Difference between the planned outlined effort and the effort required to actually undertake the task is called Effort variance. It should be relatively easy to learn how to derive the metric, and its computation should not demand inordinate effort or time. A manufacturer that tracks the right metrics will be better at finding and eliminating problems that impact their product quality. Identify areas of improvement 3. PMP, PMI, PMBOK, CAPM, PgMP, PfMP, ACP, PBA, RMP, SP, and OPM3 are registered marks of the Project Management Institute, Inc. Penalize well-designed but short programs. Defects delivered to and reported by the end users. Ans: We measure the effectiveness of a process by deriving a set of metrics based on outcomes of the process such as: 5) What is Product Metrics? 6. These are metrics that relate to Project Quality. Most widely used metric of this type is the function point: Function point values on past projects can be used to compute, for example, the average number of lines of code per function point (e.g., 60). Testing Efficiency: Testing efficiency = 1 – ((defects found in acceptance)/ total number of testing defects) x 100. Residual defect density = (total number of defects found by a customer)/ (Total number of defects including customer found defects) x 100. Product metrics describe the characteristics of the product such as size, complexity, design features, performance, and quality level. Following are the needs for the software Metrics- These metrics enable management to understand the quality of the software, the productivity of the development team, code complexity, customer satisfaction, agile process, and operational metrics. Cost of poor quality: It is the cost of implementing imperfect processes and products. 4) How can we measure the effectiveness of a Process? Defect removal efficiency = (1 – (total defects caught by customer/ total number of defects)) x 100. Product metrics fall into two classes: Dynamic metrics that are collected by … 2. Defects per KLOC- KLOC per person-month. In software development process, a working product is developed at the end of each successful phase. Metrics are developed for these products so that they can indicate whether a product is developed according to the user requirements. 1. Software metrics help people to develop better project estimates, produce higher-quality systems, and get products out the door on time. 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