Improving Equipment Maintainability via Alarm Threshold Optimization
نویسنده
چکیده
The Operations Technology Center (OTC) is responsible for the systems used to manage and maintain the AT&T long distance network. In this paper we describe an effort within the OTC to improve the maintainability of AT&T’s 4ESS switches, by optimizing the thresholding rules within the operation support system responsible for maintaining these switches. This optimization task required us to first identify the purpose of the thresholds, so that we could specify objective criteria for evaluating these thresholds. We then exhaustively searched the space of possible thresholds in order to determine the “best” strategies. One of our key discoveries is that the thresholding strategies, no matter what the threshold value, are relatively ineffective.
منابع مشابه
Maximum Maintainability of Complex Systems via Modulation Based on DSM and Module Layout.Case Study:Laser Range Finder
The present paper aims to investigate the effects of modularity and the layout of subsystems and parts of a complex system on its maintainability. For this purpose, four objective functions have been considered simultaneously: I) maximizing the level of accordance between system design and optimum modularity design,II) maximizing the level of accessibility and the maintenance space required,III...
متن کاملEstimation of Fixed and Dynamic Alarm Threshold Levels of Meningitis and Its Outbreak in Iran
Background and Objectives: Given the importance of the early detection of any outbreak or change in the trend of meningitis, this study was conducted to estimate the fixed and dynamic alarm threshold levels of meningitis and its outbreak in Iran. Materials and Methods: In this study, the data of all patients from 20¬ March 2016 to 20 March 2019 were extracted from the National Meningitis Di...
متن کاملImproving Software Maintainability through Risk Analysis
The lifetime of a product is dependent on its maintainability. It is proved that a lot of cost spent towards maintainability. Researchers find it as a difficult task to measure and improve software maintainability. Here we proposed a risk based approach to improve software maintainability. Risk based approach accounts the probability of failure of a portion of code as determined by its complexi...
متن کاملEvaluation of Training Methods for Conditioning of Fuzzy Based Maintainability Metric
The software maintainability can be ensured by carefully control of its software development process. An early measurement of maintainability starting from design phase is always desirable to produce maintainable software. Some of the researchers have tried to use soft computing techniques to measure maintainability. In spite of their reported validations, these models are not calibrated and no...
متن کاملOn Threshold Optimization in Fault Tolerant Systems
Fault tolerant systems are considered, where a nominal system is monitored by a fault detection algorithm, and the nominal system is switched to a backup system in case of a detected fault. Conventional fault detection is in the classical setting a trade-off between detection probability and false alarm probability. For the considered fault tolerant system, a system failure occurs either when t...
متن کامل