PPT-CSE/ISE 312 Chapter 8: Errors, Failures

and Risk What We Will Cover Failures and Errors in Computer Systems Case Study The Therac25 Increasing Reliability and Safety Dependence Risk and Progress Failures and Errors in Computer Systems. Lecture 1. 1. Chapter 11 Security and Dependability. Topics covered. Dependability properties. The system attributes that lead to dependability.. Availability and . reliability. Systems should be available to deliver service and perform as expected.. 1. Eytan. . Modiano. Joint work with . Marzieh. . Parandehgheibi. David Hay. IEEE . SmartGridComm. November 4, 2014 . Motivation. 2. Risk of Large blackouts such as 2003 blackout in North-East America. Jørn Vatn. NTNU. jorn.vatn@ntnu.no. Definitions. Failure. In order to define the term ‘failure’, we need first to introduce the term ‘function’. A unit or system (entity) is designed for performing one or more functions. em. or lose. János. . Tóth-Égetö. . / Software Consultant. 2015-04-03. www.softhouse.se. Softhouse Consulting. Are you scared of failures?. Who am I?. What I will talk about. The learnin. g process. Bell-ringer DOLs. 2016-2017. DOL 1- 5 errors. t. he sun had set my shovel was on my shoulder and . i. was walking up the path to the village. From chapter 1 of Will Hobbs’ . Crossing the Wire. DOL 1 solution. Professor Dilly OC Anumba . Chair in Obstetrics and Gynaecology, The University of Sheffield Medical School. Consultant . in Obstetrics and Fetomaternal . Medicine. Clinical Lead, . Wesfield. Fetomaternal Unit. balancing of the trial balance. Learning objectives. After you have studied this chapter, you should be able . to:. Correct errors which are not revealed by a trial . balance. Distinguish between the different kinds of errors that may . CS 4501 / 6501 . Software Testing. S. oftware Testing. Testing . = process of finding input values to check against a software . (focus of this course). Debugging. = process of finding a fault given a failure. Florin . Dinu. . T. S. Eugene Ng. Computing in the Big Data Era. 2. 15PB. 20PB. 100PB. 120PB. Big Data – Challenging for previous systems. Big Data Frameworks . MapReduce. @ Google. Dryad @Microsoft. In Nontraditional Computing Environments. J. Alex Halderman. CD DRM. 2003, 2005. SDMI. 2001. CSS. 1999. AACS. 2007. Diebold. 2003, 2006. What’s the common “thread”?. Nontraditional Environments. CIS 720 Broadcasting with failures Broadcasting with failures Type of failures: - link failures - halting failures: processor may crash and never recovers - omission failures: a processor may fail to Committee Prof. Onur Mutlu (Chair) Prof. Greg Ganger Prof. James Hoe Dr. Kaushik Veeraraghavan (Facebook, Inc.) Large Scale Studies of Memory, Storage, and Network Failures in a Modern Data Center Thesis Oral Unit 2: How Markets Work. Market Failures. Sometimes markets are not able to provide the goods and services desired by consumers or which can be efficiently produced by suppliers. This situation is called a . Barbara DeBaun, MSN, RN, CIC . Improvement Advisor. Cynosure Health. Session 3. Kim Werkmeister, MS, RN, CPHQ, CPPS. Improvement Advisor. Cynosure Health. Goals for the Program. Develop a foundational understanding of core concepts related to health care quality and patient safety.