Aiaa-99-4456 Practical Issues in Estimating Fault Content and Location in Software Systems

نویسندگان

  • P. Nikora
  • Norman F. Schneidewind
  • John C. Munson
چکیده

Over the past several years, techniques have been developed to discriminate between fault-prone software modules and those that are not, and to estimate a software system’s residual fault content. These techniques can be applied during the stages of a development effort prior to test, thereby giving software managers greater visibility into the systems being developed and allowing them to exert more accurate and precise control into their quality. There are practical issues involved in implementing these measurement techniques in a production development environment. In this paper, we describe measurement techniques being implemented on a development effort at the Jet Propulsion Laboratory, identify implementation issues, and describe proposed resolutions to these issues.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Fault Type Estimation in Power Systems

This paper presents a novel approach for fault type estimation in power systems. The Fault type estimation is the first step to estimate instantaneous voltage, voltage sag magnitude and duration in a three-phase system at fault duration. The approach is based on time-domain state estimation where redundant measurements are available. The current based model allows a linear mapping between the m...

متن کامل

An Intelligent Protection Method for Multi-terminal DC Microgrids Using On-line Phaselet, Mathematical Morphology, and Fuzzy Inference Systems

In this paper, a new method for fault detection, location, and classification in multi-terminal DC microgrid (MTDC) is proposed. MTDC grids have expanded due to some issues such as the expansion of DC resources, loads, and aims to increase power quality. Diagnosing the types and location of faults is important to continue the service and prevent further outages. In this method, a circuit kit is...

متن کامل

مکان‌یابی خطا در خطوط انتقال با حضور محدودکننده جریان خطا

Fault location is an interesting subject in power grids. On the other hand, the application of fault current limiter (FCL) has been increasing in power network and causes some problems in operation of protection systems. This paper studies the application of FCL in power system and its effect on one-ended simple reactance fault location methods. In these methods, only voltages and currents of t...

متن کامل

Selection of Resistive and Inductive Superconductor Fault Current Limiters Location Considering System Transient Stability

Superconductor fault current limiter (SFCL) is an effective device to suppress high fault currents. This paper presents a comparative study of resistive and inductive fault current limiters from transient stability point of view.  Appropriate location and type of the limiters in a HV substation is selected by a qualitative approach based on the equal area criterion. Study system is simulated by...

متن کامل

Fault location and classification in non-homogeneous transmission line utilizing breaker transients

In this paper, a single-ended fault location method is presented based on a circuit breaker operation using the frequencies of traveling waves. The proposed method receives the required data from voltage traveling waves with the aid of Fast Fourier Transform (FFT) and Wavelet Transform. Then, the Artificial Neural Network (ANN) identifies fault type and determines its location. In order to eval...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2001