Conflicting forces for Software Reliability in e-Business (2009)
Abstract-- The design point of e-business web application and the market demands for reliability have changed considerably in the past few years. Client ramp rates and business pressures cause...
Ram Chillarege, Chillarege Inc, P. Santhanam
Abstract-- “Tail-Splitting ” is a new technique to identify defect prone modules by enhancing the focus of the Pareto distribution by a development process factor. The simple yet powerful...
IBM Large Scale Computing Dw~aon (2009)
Lisa Spainhower, A. Gregg, Ram Chillarege
Consolidated work loads running around the clock means that today’s large, genera&purpose computers must meet high availability demands. To meet these demands, the Model 982 provides fault...
Challenges facing Software Fault-tolerance (2008)
As software dominates most discussions in the information technology business, one needs to carefully examine where we are headed in software dependability. This paper re-examines some of the basic...
A Case Study of Software Process Improvement During Development (2008)
Inderpal Bh, Michael Halliday, Eric Tarver, David Brown, Jarir Chaar, Ram Chillarege
Abstract- We present a case study of the use of a software process improvement method which is based on the analysis of defect data. The first step of the method is the classification of software...
Akey problem in todays complex software systems is software failure detection and isolation. Given that most software failures are only partial and if e ciently diagnosed, isolated and recovered,...
Ram Chillarege, Bonnie Ray, Al Garrigan, Dave Ruth
Software recreates arenecessitated due to inadequate diagnostic capability following a failure. They impact the serviceprocess and the perception of availability, but have never been adequately...
ODC- a 10x for Root Cause Analysis (2006)
Ram Chillarege, Chillarege Inc
Abstract-- Orthogonal Defect Classification (ODC) allows us to do a “10x ” on Root Cause Analysis (RCA). It is a 10x in terms of the time it takes to perform root cause analysis and a 10x in...
Reflections on Industry Trends and Experimental research in Dependability (2004)
Daniel P. Siewiorek, Ram Chillarege, Zbigniew T. Kalbarczyk
Abstract—Experimental research in dependability has evolved over the past 30 years accompanied by dramatic changes in the computing industry. To understand the magnitude and nature of this...
The Effect of System Workload on Error Latency: An Experimental Study. (2002)
Chillarege,Ram, Iyer,Ravishankar K.
In this paper we have established a methodology for determining and characterizing error latency. The method is based on real workload data gathered by an experiment instrumented on a VAX 11/780...
Test and Development Process Retrospective: A Case Study Using ODC Triggers (2002)
www.chillarege.com We present a case study of a product development retrospective analysis conducted to gain an understanding of the test and development process effectiveness. Orthogonal Defect...
Experiment illustrating Failure Acceleration and Error Propagation in Fault-Injection (2002)
Ram Chillarege, Kumar Goswami, Murthy Devarakonda
Abstract-- A system level fault injection experiment measuring changes in probability of failure and error propagation as a function of failure acceleration. It demonstrates that: (1) Probability of...
Discovering relationships between service and customer satisfaction (1995)
Michael Buckley, Ram Chillarege
Organizations spend significant resources tracking customer satisfaction and managing service delivery. Although a great deal of effort is expended in under-standing what goes on within each of these...
In-Process Evaluation for Software Inspection and Test (1993)
Jarir K. Chaar, Michael J. Halliday, Inderpal S. Bh, Ram Chillarege, Senior Member
Abstract-The goal of software inspection and test is to reduce the expected cost of software failure over the life of a product. This paper extends the use of defect higgers, the eventsthat cause...
In recent years, software defects have become the dominant cause of customer outage, and improvements in software reliability and quality have not kept pace with those of hardware. Yet, software...