survey on analysing the crash reports of software applicationsIRJET Journal
This document discusses various methods for analyzing and grouping software crash reports to help developers more efficiently debug and fix software bugs. It reviews existing crash reporting systems and several approaches for determining duplicate crash reports, including methods based on stack trace similarity and textual similarity of crash reports. The goal of these methods is to reduce debugging time by identifying duplicate reports caused by the same bug and prioritizing which bugs developers should address first based on the number of associated crash reports.
FirstEnergy Service Company on behalf of its transmission owning affiliates determined there was a need to improve the accuracy and speed of its fault location process especially for the 138 and 69 kV system. This system is heavily tapped with industrial customers and substations. The main objective of this project was to see if the need to call out staff, usually overnight, to run the fault-location program could be eliminated for the majority of faults that occur in a pilot/test area.
The overall objective of this effort is to reduce the time to determine where a fault has occurred with sufficient certainty to route field crews to the location of the fault quickly and improve restoration times. At some locations, there may be the ability to sectionalize the 69 kV or 138 kV transmission network so that operations staff can begin restoring customers in areas not directly affected by the faulted line section.
This update paper will provide additional details regarding the implementation of the analytics methods and data handling and transformation required to fully automate the process. Furthermore, a recent enhancement in the automated determination of the appropriate fault current to use will be provided. This enhancement more appropriately removes the impact of the DC offset often present within the fault measurement made by the digital fault recorder.
Software CrashLocator: Locating the Faulty Functions by Analyzing the Crash S...INFOGAIN PUBLICATION
In recent years, studies have been dedicated mainly in the analysis, of crashes in real-world related to large-scale software systems. A crash in terms of computing can be termed as a computer program such as a software application that stops functioning properly. Software crash is a serious problem in production environment. When crash happens, the crash report with the stack trace of software at time of crash is sent to the developer team. Software development team may receive hundreds of stack traces from all deployment sites and many stack traces may be due to same problem. If the developer starts analyzing each trace, it may take a longer duration of time and redundancy many happen in terms of two developers fixing the same problem. This motivates us to present the solution to analyze the stack traces and find the important functions responsible for crash and rank them, so that development resources can be optimized. In this paper we have proposed the solution to solve the problem by developing Software CrashLocator.
Association Rule Mining Scheme for Software Failure AnalysisEditor IJMTER
The software execution process is tracked with event logs. The event logs are used to maintain the
execution process flow in a textual log file. The log file also manages the error values and their source of classes.
The error values are used to analyze the failure of the software. The data mining methods are used to evaluate the
quality and software failure rate analysis process. The text logs are processed and data values are extracted from
the data values. The data values are mined using the machine learning methods for failure analysis.
The service error, service complaints, interaction error and crash errors are maintained under the log files.
The events and their reactions are also maintained under the log files. Software termination and execution failures
are identified using the log details. The log file parsing process is applied to extract data from the logs. The
associations rule mining methods are used to analyze the log files for failure detection process. The system uses
the Weighted Association Rule Mining (WARM) scheme to fetch failure rate in the software execution flow. The
system improves the failure rate detection accuracy in WARM model.
LusRegTes: A Regression Testing Tool for Lustre Programs IJECEIAES
This document summarizes a tool called LusRegTes that was developed to automate regression testing of Lustre programs. Lustre is a synchronous data-flow language used for safety-critical applications. The tool represents Lustre programs as operator networks and generates regression test cases by comparing paths between program versions. It aims to select an optimal minimum set of tests to validate changes while reducing testing costs. The approach was implemented in a tool to automate the regression testing process for Lustre programs.
This is our presentation in Mashrouy IV competition. Mashrouy IV is a competition sponsored by British Council in Sudan. We have reached the top 12 projects--we still there BTW. Hopefully, we will get a better position.
Gis based-hydrological-modeling.-a-comparative-study-of-hec-hms-and-the-xinan...Sikandar Ali
This document compares the HEC-HMS and Xinanjiang hydrological models. HEC-HMS and the GIS extension HEC-GeoHMS were used to preprocess data and develop a rainfall-runoff model for the Wanjiabu catchment in China. Both HEC-HMS and the Xinanjiang model were applied to the catchment. The results showed that HEC-HMS was more convenient for parameter optimization but less accurate than the Xinanjiang model, possibly because Xinanjiang has more parameters. The document concludes by comparing the simulated and observed hydrographs from both models.
Land Information New Zealand completed the first national airborne gravity survey of New Zealand in collaboration with GNS Science and Victoria University of Wellington. Over 50,000 line-kilometers of data were collected to determine gravity anomalies with 10km spatial resolution. This data was combined with existing terrestrial and satellite data using least squares collocation to produce a new gravimetric quasigeoid model. Validation showed the new model has an accuracy of 3.9cm standard deviation and 4.86cm root mean squared error, an improvement of around 1.5cm over the previous NZGeoid2009 model.
survey on analysing the crash reports of software applicationsIRJET Journal
This document discusses various methods for analyzing and grouping software crash reports to help developers more efficiently debug and fix software bugs. It reviews existing crash reporting systems and several approaches for determining duplicate crash reports, including methods based on stack trace similarity and textual similarity of crash reports. The goal of these methods is to reduce debugging time by identifying duplicate reports caused by the same bug and prioritizing which bugs developers should address first based on the number of associated crash reports.
FirstEnergy Service Company on behalf of its transmission owning affiliates determined there was a need to improve the accuracy and speed of its fault location process especially for the 138 and 69 kV system. This system is heavily tapped with industrial customers and substations. The main objective of this project was to see if the need to call out staff, usually overnight, to run the fault-location program could be eliminated for the majority of faults that occur in a pilot/test area.
The overall objective of this effort is to reduce the time to determine where a fault has occurred with sufficient certainty to route field crews to the location of the fault quickly and improve restoration times. At some locations, there may be the ability to sectionalize the 69 kV or 138 kV transmission network so that operations staff can begin restoring customers in areas not directly affected by the faulted line section.
This update paper will provide additional details regarding the implementation of the analytics methods and data handling and transformation required to fully automate the process. Furthermore, a recent enhancement in the automated determination of the appropriate fault current to use will be provided. This enhancement more appropriately removes the impact of the DC offset often present within the fault measurement made by the digital fault recorder.
Software CrashLocator: Locating the Faulty Functions by Analyzing the Crash S...INFOGAIN PUBLICATION
In recent years, studies have been dedicated mainly in the analysis, of crashes in real-world related to large-scale software systems. A crash in terms of computing can be termed as a computer program such as a software application that stops functioning properly. Software crash is a serious problem in production environment. When crash happens, the crash report with the stack trace of software at time of crash is sent to the developer team. Software development team may receive hundreds of stack traces from all deployment sites and many stack traces may be due to same problem. If the developer starts analyzing each trace, it may take a longer duration of time and redundancy many happen in terms of two developers fixing the same problem. This motivates us to present the solution to analyze the stack traces and find the important functions responsible for crash and rank them, so that development resources can be optimized. In this paper we have proposed the solution to solve the problem by developing Software CrashLocator.
Association Rule Mining Scheme for Software Failure AnalysisEditor IJMTER
The software execution process is tracked with event logs. The event logs are used to maintain the
execution process flow in a textual log file. The log file also manages the error values and their source of classes.
The error values are used to analyze the failure of the software. The data mining methods are used to evaluate the
quality and software failure rate analysis process. The text logs are processed and data values are extracted from
the data values. The data values are mined using the machine learning methods for failure analysis.
The service error, service complaints, interaction error and crash errors are maintained under the log files.
The events and their reactions are also maintained under the log files. Software termination and execution failures
are identified using the log details. The log file parsing process is applied to extract data from the logs. The
associations rule mining methods are used to analyze the log files for failure detection process. The system uses
the Weighted Association Rule Mining (WARM) scheme to fetch failure rate in the software execution flow. The
system improves the failure rate detection accuracy in WARM model.
LusRegTes: A Regression Testing Tool for Lustre Programs IJECEIAES
This document summarizes a tool called LusRegTes that was developed to automate regression testing of Lustre programs. Lustre is a synchronous data-flow language used for safety-critical applications. The tool represents Lustre programs as operator networks and generates regression test cases by comparing paths between program versions. It aims to select an optimal minimum set of tests to validate changes while reducing testing costs. The approach was implemented in a tool to automate the regression testing process for Lustre programs.
This is our presentation in Mashrouy IV competition. Mashrouy IV is a competition sponsored by British Council in Sudan. We have reached the top 12 projects--we still there BTW. Hopefully, we will get a better position.
Gis based-hydrological-modeling.-a-comparative-study-of-hec-hms-and-the-xinan...Sikandar Ali
This document compares the HEC-HMS and Xinanjiang hydrological models. HEC-HMS and the GIS extension HEC-GeoHMS were used to preprocess data and develop a rainfall-runoff model for the Wanjiabu catchment in China. Both HEC-HMS and the Xinanjiang model were applied to the catchment. The results showed that HEC-HMS was more convenient for parameter optimization but less accurate than the Xinanjiang model, possibly because Xinanjiang has more parameters. The document concludes by comparing the simulated and observed hydrographs from both models.
Land Information New Zealand completed the first national airborne gravity survey of New Zealand in collaboration with GNS Science and Victoria University of Wellington. Over 50,000 line-kilometers of data were collected to determine gravity anomalies with 10km spatial resolution. This data was combined with existing terrestrial and satellite data using least squares collocation to produce a new gravimetric quasigeoid model. Validation showed the new model has an accuracy of 3.9cm standard deviation and 4.86cm root mean squared error, an improvement of around 1.5cm over the previous NZGeoid2009 model.
The document discusses several major hydrologic models: HSPF, HEC, and MIKE. It provides details on HSPF (Hydrological Simulation Program–Fortran), including its data requirements, capabilities, parameters, and components. It also describes some key HEC (Hydrologic Engineering Center) models and their functions. Finally, it discusses the capabilities and components of HEC-HMS (Hydrologic Modeling System), which simulates rainfall-runoff processes.
This survey is designed to assess a school administrator's leadership in using technology to improve instruction based on national goals and standards. It contains 16 statements for the administrator to rate their level of agreement on a scale from strongly agree to strongly disagree. The statements address empowering students, using technology to implement standards, using universal design principles for resources, supporting online learning options, and using digital tools to improve STEM skills. Additional statements cover using assessment data to improve instruction, using technology to improve assessments, and ensuring student privacy with data. The final statements concern empowering teachers to take risks with technology, modeling emerging tech use, ensuring instruction is enhanced by advances in technology, researching and implementing new technologies, and participating in professional online communities.
Early dropout refers to leaving school without completing a higher level of education. It is usually the result of a long process influenced by personal, social, economic, geographic, educational, and family factors. Those most at risk include those from poor families, with low family education levels, immigrants, minorities, students with special needs, and those from vocational schools or rural areas. In the EU, 12% of youth aged 18-24 have a lower secondary education or less. Rates vary significantly between countries, ranging from 4-5% in some to over 20% in others. The EU aims to reduce the dropout rate to 10% by 2020 through national strategies and improving vocational education. In Poland, the dropout rate is only
Звіт директора ТЗОШ №4 за звітний період з 20.05.2015 р. по 20.05.2016 р.Kristina Bogachuk
Звіт директора
Тернопільської загальноосвітньої школи І-ІІІ ступенів № 4
Тернопільської міської ради Тернопільської області
Левенець Наталії Іванівни про свою діяльність за звітний період з 20.05.2015 р. по 20.05.2016 р.
This document discusses the role of information technology in schools in Poland. It outlines that IT classes are offered from primary school through high school, covering subjects like computer science, information technology, and applied computer sciences. It also describes the IT classroom and media center at the author's school, where students can use computers and access multimedia presentations. The document discusses how Polish high schools now use an electronic register that is accessible to students and parents online or via a mobile app, allowing them to check grades, schedules, messages and more. It concludes with the results of a street survey about sources of information.
The document summarizes several major news agencies in Pakistan, including:
- Associated Press of Pakistan (APP), the government-operated national news agency established in 1947.
- Pakistan Press International (PPI), the country's top independent news agency launched in 1956.
- News Network International (NNI), a private-operated national news agency established in 1992 and headquartered in Islamabad.
- Independent News Pakistan (INP), an online news service staffed 24/7 with over 1000 correspondents nationwide and worldwide.
A study confined to the lower tapi basin in Gujarat, India to find out the primary causes for 2006 floods in Surat city. The study involves collection of topographical data from the local geological survey organization, rainfall data from meteorological department of india and the application of HEC-HMS software from US Army corps of engineers to identify the primary cause of the runoff.
Flood Mapping via HEC-RAS Model and ArcGISLengthong KIM
This research was taken place along the lower Mekong river reach part in Cambodia. The purpose of the study is to evaluate the HEC-RAS performance whether it eligible for Cambodia flood studies or not.
This document summarizes a student project using HEC-HMS software to model rainfall runoff. The project aims to study and simulate the rainfall runoff process, learn how to use the modeling software, prepare a draft model, and compute and model runoff. Key aspects of the model include subdividing the area into sub-basins representing different land uses like residential and cultivated areas, inputting precipitation data and metrological models, using the SCS curve number loss model to compute losses, and running a simulation to output results.
This document provides a tutorial on using HEC-RAS (Hydraulic Engineering Center's River Analysis System), a 1D step-backwater hydraulic modeling software, to model flow through a small laboratory flume. It describes how to set up a new HEC-RAS project, define the flume geometry by adding cross sections, interpolate cross sections, add steady flow data at three discharges, define the downstream boundary condition as critical depth, run the steady flow simulation, and view the resulting water surface profiles. The tutorial demonstrates the basic workflow for creating a simple HEC-RAS model to simulate subcritical flow through a rectangular flume with uniform cross-sectional geometry.
HP Performance Center software is an enterprise-class performance engineering software designed to facilitate standardization, centralization, global collaboration, and management of a performance engineering center of excellence. It provides a globally accessible web-based platform for enterprise-wide performance testing and collaboration, and enables planning and executing tests across multiple concurrent projects. The software inherits the capabilities of HP LoadRunner and allows testing a broad range of applications on physical and virtual environments.
A Better Way to Capture and Manage Cement Lab Datapvisoftware
The design and test of cement slurries are integral parts of every cementing job. Variability between wells can make this process time-consuming and expensive. This white paper talks about how to use an integrated database management application to formulates slurries, calculates required weights for all ingredients, generates weight-up sheets, stores test results, and generates lab reports from anywhere, at any time.
Automation of Release and Deployment Management - MavericMaveric Systems
This presentation highlights why automation platforms for application release and deployment are becoming increasingly vital for global enterprises and explores the specific requirements of such a platform in order for it to prove beneficial, effective and offer a substantial return on investment.
The document provides instructions for upgrading ESM from version 6.5c to 6.5c SP1. It discusses supported upgrade paths, important log files to reference in case of issues, planning steps like verifying the current ESM installation and opening a support ticket. The main steps include stopping services, running the upgrade installer, and post-upgrade tasks like upgrading connectors and checking existing content.
ESM 6.8 HA OS Upgrade from RHEL 6.5, 6.6, or 6.7 t..Protect724tk
This document provides instructions for upgrading an ESM 6.8c high availability (HA) environment implemented on RHEL 6.5 or CentOS 6.5 to be compatible with RHEL 6.8 or CentOS 6.8. The upgrade procedure involves putting the secondary server in standby mode, upgrading the operating system, installing an HA upgrade package, and verifying the upgraded HA installation. Some configuration changes are needed to exclude certain packages from being upgraded. Route metric issues are also addressed. Support contact information is provided.
This document provides instructions for upgrading HP ArcSight ESM, ArcSight Express, or ESM Express to version 6.9.1c. It includes prerequisites like verifying proper operation, preparing resources for backup, validating resources, and opening a support ticket. The upgrade process involves running the upgrade utilities package and confirming the upgrade succeeded. Post-upgrade tasks include restoring backups and verifying configurations. Instructions are also provided for upgrading the ArcSight console and connectors.
A software engineering concept - generator based reuse. It has been read and edited to bring it into simpler words and easy understanding.
We are very happy to share with you our second ppt, Your support will help us to make more such great presentations.
Many more to come. Stay tuned.
Thank you and jazakallahu khair!!
The EPANET Programmer's Toolkit allows developers to customize the EPANET hydraulic and water quality computational engine for their own applications. It provides functions to interface with EPANET and access simulation results. Key functions allow opening an EPANET input file, running hydraulic and water quality simulations, retrieving and setting network parameters and results between time steps, and closing the toolkit when finished. The toolkit provides a way to customize how EPANET is used programmatically.
Mud Reporting: Streamlined Process and Data Managementpvisoftware
This white paper describes a mud reporting software called MUDPRO that was developed by Pegasus Vertex, Inc. and Anchor Drilling Fluids to streamline the mud reporting process. The software allows mud engineers to record daily mud data, generate reports, and transmit data. It also enables management to review data, generate end-of-well recaps, and compare data between multiple wells. The software provides flexible functions like well carryover and past data editing. It also includes engineering calculations, customizable reporting, and data management tools to help optimize drilling operations.
The document discusses several major hydrologic models: HSPF, HEC, and MIKE. It provides details on HSPF (Hydrological Simulation Program–Fortran), including its data requirements, capabilities, parameters, and components. It also describes some key HEC (Hydrologic Engineering Center) models and their functions. Finally, it discusses the capabilities and components of HEC-HMS (Hydrologic Modeling System), which simulates rainfall-runoff processes.
This survey is designed to assess a school administrator's leadership in using technology to improve instruction based on national goals and standards. It contains 16 statements for the administrator to rate their level of agreement on a scale from strongly agree to strongly disagree. The statements address empowering students, using technology to implement standards, using universal design principles for resources, supporting online learning options, and using digital tools to improve STEM skills. Additional statements cover using assessment data to improve instruction, using technology to improve assessments, and ensuring student privacy with data. The final statements concern empowering teachers to take risks with technology, modeling emerging tech use, ensuring instruction is enhanced by advances in technology, researching and implementing new technologies, and participating in professional online communities.
Early dropout refers to leaving school without completing a higher level of education. It is usually the result of a long process influenced by personal, social, economic, geographic, educational, and family factors. Those most at risk include those from poor families, with low family education levels, immigrants, minorities, students with special needs, and those from vocational schools or rural areas. In the EU, 12% of youth aged 18-24 have a lower secondary education or less. Rates vary significantly between countries, ranging from 4-5% in some to over 20% in others. The EU aims to reduce the dropout rate to 10% by 2020 through national strategies and improving vocational education. In Poland, the dropout rate is only
Звіт директора ТЗОШ №4 за звітний період з 20.05.2015 р. по 20.05.2016 р.Kristina Bogachuk
Звіт директора
Тернопільської загальноосвітньої школи І-ІІІ ступенів № 4
Тернопільської міської ради Тернопільської області
Левенець Наталії Іванівни про свою діяльність за звітний період з 20.05.2015 р. по 20.05.2016 р.
This document discusses the role of information technology in schools in Poland. It outlines that IT classes are offered from primary school through high school, covering subjects like computer science, information technology, and applied computer sciences. It also describes the IT classroom and media center at the author's school, where students can use computers and access multimedia presentations. The document discusses how Polish high schools now use an electronic register that is accessible to students and parents online or via a mobile app, allowing them to check grades, schedules, messages and more. It concludes with the results of a street survey about sources of information.
The document summarizes several major news agencies in Pakistan, including:
- Associated Press of Pakistan (APP), the government-operated national news agency established in 1947.
- Pakistan Press International (PPI), the country's top independent news agency launched in 1956.
- News Network International (NNI), a private-operated national news agency established in 1992 and headquartered in Islamabad.
- Independent News Pakistan (INP), an online news service staffed 24/7 with over 1000 correspondents nationwide and worldwide.
A study confined to the lower tapi basin in Gujarat, India to find out the primary causes for 2006 floods in Surat city. The study involves collection of topographical data from the local geological survey organization, rainfall data from meteorological department of india and the application of HEC-HMS software from US Army corps of engineers to identify the primary cause of the runoff.
Flood Mapping via HEC-RAS Model and ArcGISLengthong KIM
This research was taken place along the lower Mekong river reach part in Cambodia. The purpose of the study is to evaluate the HEC-RAS performance whether it eligible for Cambodia flood studies or not.
This document summarizes a student project using HEC-HMS software to model rainfall runoff. The project aims to study and simulate the rainfall runoff process, learn how to use the modeling software, prepare a draft model, and compute and model runoff. Key aspects of the model include subdividing the area into sub-basins representing different land uses like residential and cultivated areas, inputting precipitation data and metrological models, using the SCS curve number loss model to compute losses, and running a simulation to output results.
This document provides a tutorial on using HEC-RAS (Hydraulic Engineering Center's River Analysis System), a 1D step-backwater hydraulic modeling software, to model flow through a small laboratory flume. It describes how to set up a new HEC-RAS project, define the flume geometry by adding cross sections, interpolate cross sections, add steady flow data at three discharges, define the downstream boundary condition as critical depth, run the steady flow simulation, and view the resulting water surface profiles. The tutorial demonstrates the basic workflow for creating a simple HEC-RAS model to simulate subcritical flow through a rectangular flume with uniform cross-sectional geometry.
HP Performance Center software is an enterprise-class performance engineering software designed to facilitate standardization, centralization, global collaboration, and management of a performance engineering center of excellence. It provides a globally accessible web-based platform for enterprise-wide performance testing and collaboration, and enables planning and executing tests across multiple concurrent projects. The software inherits the capabilities of HP LoadRunner and allows testing a broad range of applications on physical and virtual environments.
A Better Way to Capture and Manage Cement Lab Datapvisoftware
The design and test of cement slurries are integral parts of every cementing job. Variability between wells can make this process time-consuming and expensive. This white paper talks about how to use an integrated database management application to formulates slurries, calculates required weights for all ingredients, generates weight-up sheets, stores test results, and generates lab reports from anywhere, at any time.
Automation of Release and Deployment Management - MavericMaveric Systems
This presentation highlights why automation platforms for application release and deployment are becoming increasingly vital for global enterprises and explores the specific requirements of such a platform in order for it to prove beneficial, effective and offer a substantial return on investment.
The document provides instructions for upgrading ESM from version 6.5c to 6.5c SP1. It discusses supported upgrade paths, important log files to reference in case of issues, planning steps like verifying the current ESM installation and opening a support ticket. The main steps include stopping services, running the upgrade installer, and post-upgrade tasks like upgrading connectors and checking existing content.
ESM 6.8 HA OS Upgrade from RHEL 6.5, 6.6, or 6.7 t..Protect724tk
This document provides instructions for upgrading an ESM 6.8c high availability (HA) environment implemented on RHEL 6.5 or CentOS 6.5 to be compatible with RHEL 6.8 or CentOS 6.8. The upgrade procedure involves putting the secondary server in standby mode, upgrading the operating system, installing an HA upgrade package, and verifying the upgraded HA installation. Some configuration changes are needed to exclude certain packages from being upgraded. Route metric issues are also addressed. Support contact information is provided.
This document provides instructions for upgrading HP ArcSight ESM, ArcSight Express, or ESM Express to version 6.9.1c. It includes prerequisites like verifying proper operation, preparing resources for backup, validating resources, and opening a support ticket. The upgrade process involves running the upgrade utilities package and confirming the upgrade succeeded. Post-upgrade tasks include restoring backups and verifying configurations. Instructions are also provided for upgrading the ArcSight console and connectors.
A software engineering concept - generator based reuse. It has been read and edited to bring it into simpler words and easy understanding.
We are very happy to share with you our second ppt, Your support will help us to make more such great presentations.
Many more to come. Stay tuned.
Thank you and jazakallahu khair!!
The EPANET Programmer's Toolkit allows developers to customize the EPANET hydraulic and water quality computational engine for their own applications. It provides functions to interface with EPANET and access simulation results. Key functions allow opening an EPANET input file, running hydraulic and water quality simulations, retrieving and setting network parameters and results between time steps, and closing the toolkit when finished. The toolkit provides a way to customize how EPANET is used programmatically.
Mud Reporting: Streamlined Process and Data Managementpvisoftware
This white paper describes a mud reporting software called MUDPRO that was developed by Pegasus Vertex, Inc. and Anchor Drilling Fluids to streamline the mud reporting process. The software allows mud engineers to record daily mud data, generate reports, and transmit data. It also enables management to review data, generate end-of-well recaps, and compare data between multiple wells. The software provides flexible functions like well carryover and past data editing. It also includes engineering calculations, customizable reporting, and data management tools to help optimize drilling operations.
This document presents an approach to populating a release history database from version control and bug tracking systems. It combines data from CVS version control and Bugzilla bug tracking for the Mozilla project to analyze software evolution. The paper describes related work, outlines the data import process, and evaluates the approach by examining timescales, release history, and coupling for the Mozilla project. It concludes that this approach provides insights into a project's evolutionary processes but that more formal integration with version control could improve the analysis.
HP ArcSight ESM Express 6.9.0c release notes provide information about new features, enhancements, and bug fixes in this version. Key details include:
- ArcSight Command Center includes new tool command utilities and active channel improvements.
- The ArcSight Console has enhanced active lists and new type conversion functions.
- This version includes updates to geographical information and vulnerability mappings.
- Usage notes cover features like the asset model import FlexConnector and domains that are not supported in this release.
- Open issues are listed for analytics, searching, the console, command center, connectors and more.
Maveric - Automation of Release & Deployment ManagementMaveric Systems
This paper highlights
why automation
platforms for
application release and
deployment are
becoming increasingly
vital for global
enterprises and
explores the specific
requirements of such a
platform in order for it
to prove beneficial,
effective and offer a
substantial return on
investment.
This document provides best practices for performance testing, including test planning, scripting, execution, and analysis. For test planning, it recommends identifying test cases and production data. For scripting, it recommends parameterizing values, using variables, and validating responses. For execution, it recommends monitoring systems, validating requirements are met, and backing up test runs. For analysis, it recommends analyzing logs for issues, validating processes return to normal, and checking for transactions exceeding response time limits.
The document discusses several topics related to software engineering including change control process, software version control, and CASE tools. It describes change control as a systematic process for managing and controlling changes to a system. Version control involves assigning version numbers and tracking different versions of software configurations. CASE tools can help improve productivity and reduce effort by assisting with complex software engineering processes and artifacts. The document provides details on the benefits and limitations of using CASE tools.
The document provides information about exam AZ-400 and a case study for Litware Inc. It discusses:
1) Litware's existing monolithic application architecture with over 80 code branches, issues with long merge times and bugs from code merging.
2) Litware's plans to develop a new investment planning application suite including a web app and two mobile apps, move to a more agile methodology, and use cloud services when suitable.
3) Technical requirements for the new applications including minimizing firewall access, using Azure DevOps for package management and mobile app monitoring, and ensuring consistent server configurations with Azure Automation.
This document provides a release management plan for the CMS Net application. It outlines the procedures for packaging and deploying code releases, including naming conventions, prerequisites, and roles and responsibilities. Emergency releases can be expedited if needed to address critical issues. The standard release process involves packaging code, testing, reconciliation steps, and deployment to production by various teams according to the defined responsibilities.
Automation Testing of Web based Application with Selenium and HP UFT (QTP)IRJET Journal
This document compares two automation testing tools: Selenium and HP UFT (also known as QTP). It first provides background on software testing and the benefits of automation over manual testing. It then discusses the aims of the study, related work on automation testing frameworks and the major components of the Selenium tool. The key points are that the document aims to compare Selenium and UFT/QTP for testing web applications and provides background on software testing, the benefits of automation, automation frameworks, and an overview of the Selenium tool and its major components in order to facilitate the comparison.
ACEP Magazine edition 4th launched on 05.06.2024Rahul
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
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Electric vehicle and photovoltaic advanced roles in enhancing the financial p...IJECEIAES
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
2. ii
Hydrologic Modeling System HEC-HMS, Release Notes
2016. This Hydrologic Engineering Center (HEC) Manual is a U.S.
Government document and is not subject to copyright. It may be copied
and used free of charge. Please acknowledge the U.S. Army Corps of
Engineers Hydrologic Engineering Center as the author of this Manual in
any subsequent use of this work or excerpts.
Use of the software described by this Manual is controlled by certain terms
and conditions. The user must acknowledge and agree to be bound by
the terms and conditions of usage before the software can be installed or
used. For reference, a copy of the terms and conditions of usage are
included in the HEC-HMS User's Manual, Appendix E so that they may be
examined before obtaining the software.
This document contains references to product names that are used as
trademarks by, or are federally registered trademarks of, their respective
owners. Use of specific product names does not imply official or unofficial
endorsement. Product names are used solely for the purpose of
identifying products available in the public market place.
Microsoft and Windows are registered trademarks of Microsoft Corp.
Linux is a registered trademark of Linus Torvalds.
3. HEC-HMS Version 4.2 Release Notes
1
Introduction
Version 4.1 of the Hydrologic Modeling System (HEC-HMS) was
completed in July 2015 and released for general use shortly
thereafter. Since that time, several new features have been added
to the forecast alternative to assist with setting initial conditions. A
new probability distribution function has been added to the
uncertainty analysis. Also, a new evapotranspiration method has
been added to the meteorologic model to make it easier to develop
simple potential evapotranspiration demands. Finally, it is possible
to compute a simulation run or forecast alternative to a computation
point. The development team has also continued careful and
systematic testing of the program since the last release. The
results of that testing in combination with reports from users have
allowed the identification and repair of various problems. Some of
these affected simulation results and are described in detail later in
this document. The result is this Version 4.2 release. It is currently
available for the Microsoft Windows® operating system and the
Linux® operating system.
The program has been designed to be easy to use. However, an
understanding of how the program works is critical to producing
accurate results. It is suggested that a new user read the HEC-
HMS Quick Start Guide (Version 4.2 August 2016). The guide
briefly describes the basic features of the program in enough detail
to begin using it. The guide also includes a step-by-step tutorial.
Installation
The installation package and all documentation are available on the
HEC website at http://www.hec.usace.army.mil/. This new release
is installed independently of any previous versions of the program
so you will need to uninstall the previous versions if you do not wish
to use them anymore. However, you may keep different versions of
the program installed for parallel use or testing if you choose. This
new version will automatically open projects developed with any
previous version of the program. However, once a project has
been opened in Version 4.2, it will not be possible to open it with
older versions of the program.
Windows
The new installation package is designed to be easy to use. It will
take you through the steps of selecting a directory for the program
files and making other settings. Use the following steps to install
the program on the Microsoft Windows® operating system:
4. HEC-HMS Version 4.2 Release Notes
2
1. Download the installation package from the HEC website to a
temporary folder on the computer.
2. Run the installation program. In Windows Explorer, double-click
the icon for the installation program. You must have
administrator privileges to run the installer.
3. Follow the on-screen prompts to install the program.
Linux
The installation package is delivered as a compressed TAR file. It
has several dependencies that must be installed before extracting
the installation package. The following commands can be used to
configure the dependencies prior to extraction of the installation
package.
Red Hat Enterprise Linux 7
yum install libldb.i686 libXext.i686
libXrender.i686 libXtst.i686 libgcc.i686
libstdc++.i686
Ubuntu 14.04
sudo apt-get install libc6-i386 libstdc++6:i386
libxtst6:i386 libxrender1:i386 libgcc1:i386
libxi6:i386
New Capabilities
A total of four new capabilities have been added to the program.
Summary descriptions are given below.
Forecast Baseflow Automatic Initialization
Observed stream flow data is collected in many watersheds. The
data can be compared to the simulated flow at subbasins, reaches,
and junctions to evaluate model performance. Expert evaluations
of the differences between observed and simulated flow can lead to
improvements in the model structure or parameters. Observed
stream flow also provides an excellent data source for initializing
the baseflow throughout a watershed at the beginning of a forecast
alternative. Observed flow at the outlet of a subbasin can be used
directly as the initial baseflow. When several subbasins are
upstream of an observed flow location, setting the initial baseflow
as a flow rate per area can still make good use of the data.
5. HEC-HMS Version 4.2 Release Notes
3
This new feature in the forecast alternatives allows a discharge
gage to be selected for each subbasin. The observations of the
discharge gage are automatically used to set the initial baseflow in
the subbasin. A ratio is applied to the observation to accommodate
cases where subbasin area is not equal to the drainage area of the
gage. Optional data screening parameters make certain that the
observed discharge is only used for initialization when the reported
data is within a reasonable range. You can find more information in
the HEC-HMS Version 4.2 User's Manual on page 439.
Forecast Reservoir Automatic Initialization
Observed pool elevation data is collected at many reservoirs. This
data can be compared to the simulated pool elevation to evaluate
model performance. Differences between the observed and
simulated pool elevation may indicate errors in the simulated
reservoir inflows or errors in the simulated reservoir outflows.
Observed pool elevation also provides an excellent data source for
initializing the reservoir at the beginning of a forecast alternative.
This new feature in the forecast alternative allows a stage gage to
be selected for each reservoir. The observations of the stage gage
are automatically used to set the initial pool elevation when the
forecast alternative simulation starts. Optional data screening
parameters make certain that the observed stage is only used for
initialization when the reported data is within a reasonable range,
otherwise substituting a default value. Additionally, the observed
stage can be used to reset the reservoir pool elevation at the
forecast time to remove any accumulated errors between the start
time and the forecast time. You can find more information in the
HEC-HMS Version 4.2 User's Manual on page 441.
Uncertainty Analysis Empirical Distribution
The uncertainty analysis provides a classical Monte Carlo
simulation for computing the uncertainty in output variables like
peak flow or volume given uncertainty in the hydrologic model
parameters. A total of eight analytical distributions are available for
representing each selected model parameter: beta, exponential,
gamma, log-normal, normal, triangular, uniform, and Weibull.
Generally speaking, an analytical distribution is fit to a sample of
the parameter data. In some cases no distribution fits the sample
data within an acceptable error limit.
This new feature in the uncertainty analysis provides an empirical
distribution for use when none of the available analytical
distributions provides an acceptable fit to the parameter sample
data. The empirical distribution is entered as a cumulative
6. HEC-HMS Version 4.2 Release Notes
4
distribution function in the paired data manager. The distribution is
then selected in the uncertainty analysis when choosing a
parameter. In this way unusual sample data can be
accommodated including bimodal distributions. You can find more
information in the HEC-HMS Version 4.2 User's Manual on page
499.
Annual Pattern Evapotranspiration
This new feature for continuous simulation applications provides a
simple approach to specifying potential evapotranspiration and
allowing it to change throughout the year. The primary parameter
is the potential evapotranspiration rate specified in millimeters or
inches per day. The rate is automatically adjusted for simulation
time intervals less than one day. An annual percentage pattern can
optionally be added to specify changes throughout the year.
Without the annual pattern, the specified rate is simply used as a
constant for the entire simulation time window. The annual pattern
is entered in the paired data manager in a table of dates and
percentages. The same annual pattern is repeated each year of
the simulation. You can find more information in the HEC-HMS
Version 4.2 User's Manual on page 330.
Compute to a Point
This new feature makes it possible to compute only some of the
hydrologic elements in a basin model when computing a simulation
run or forecast alternative. The feature is integrated with the
computation point. Any element in the basin model may be
designated as a computation point and there is no limit to the
number of elements that can be designated. Once a simulation run
or forecast alternative is selected, then right-clicking on a
computation point in the basin map reveals the option to compute
to that point. Only the elements upstream of the computation point
will be computed. This can provide significant time savings when
performing calibration in a basin model with many elements. You
can find more information in the HEC-HMS Version 4.2 User's
Manual on page 368 and page 447.
Changes in Operation
A number of existing capabilities in the program have changed.
Complete descriptions of each change are given below. These
changes in operation may result in changes in the computed results
when compared to previous program versions.
7. HEC-HMS Version 4.2 Release Notes
5
Negative Precipitation
The program has always included special processing for missing
precipitation data, offering the option of stopping the simulation or
substituting a zero value. However, the precipitation algorithms in
the meteorologic model where designed without any special
consideration for negative precipitation values. A recent application
study revealed poor precipitation records that contained negative
values which caused errors. All precipitation data is now
automatically screened for negative values and appropriate error
messages provided. Any negative values are now replaced with
zero values which may lead to changes in the computed
precipitation amounts.
ModClark and Non-gridded Precipitation
All previous versions of the program required the use of gridded
precipitation in the meteorologic model if the basin model included
at least one subbasin with the ModClark transform method. An
option was provided for using gridded precipitation with all of the
transform methods, including those that are not based on grid cells.
Conversely, it was only possible to use non-gridded precipitation
with subbasins utilizing unit hydrograph and kinematic wave
transform methods that do not use grid cells. It is now possible to
use non-gridded precipitation methods with the ModClark
transform. This change in operation will facilitate using so-called
design storms with the ModClark transform, including: frequency
storm, SCS storm, standard project storm, and HMR52. Non-
gridded precipitation methods are computed for the whole subbasin
and then the same value is applied to each grid cell in the
ModClark subbasin.
Precipitation and Evapotranspiration
Previous versions of the program allowed only precipitation or
evapotranspiration to occur during a time interval. This limitation
made it difficult to apply continuous simulation methods with a daily
time interval when a small amount of precipitation during a day
resulted in no evapotranspiration for the whole day. This limitation
also affected snowmelt simulation where a small amount of melt
from the snow pack each day resulted in no evapotranspiration.
There is now an option in the canopy component to control
simultaneous precipitation and evapotranspiration. The first option
is to maintain the past operation where precipitation in a time
interval results in no evapotranspiration. The second option is to
allow the normal calculation of evapotranspiration in addition to any
8. HEC-HMS Version 4.2 Release Notes
6
precipitation that may occur. Using this second option will change
the computed results and likely require recalibration of old models.
Crop Coefficient
The crop coefficient is used in the canopy component to adjust the
soil water use of a specific plant relative to the reference standard.
Previous versions of the program allowed the crop coefficient to
range from 1.0 to 1.5. After performing a literature review, it was
found that many plant growth models use a crop coefficient less
than 1.0 during early and late phases of the growth cycle. It is now
possible to use a crop coefficient from 0.01 up to 1.50.
Reservoirs with Culverts
The outlet structures routing method in the reservoir element can
include outlets representing culverts. It was found that certain
configurations of the culvert could cause the reservoir algorithm to
fail. Generally speaking, the configurations causing failure used a
culvert with a very high flow capacity relative to the storage volume
at the bottom of the reservoir. Dead storage below the culvert
invert was also a factor. In these cases the simulation often
aborted with an error message. The reservoir algorithm has been
enhanced to handle these difficult configurations. This
enhancement to the algorithm may result in changes in computed
discharge at small storage volumes. Typically, the changes in
computed storage result in changes in the computed reservoir pool
elevation on the order of 0.01 meters (0.03 feet).
MUSLE Default Flow Threshold
The Modified Universal Soil Loss Equation (MUSLE) can be used
for computing subbasin surface erosion. It is based on the concept
of computing erosion for each storm event. A threshold is included
for identifying the minimum surface flow necessary to initiate
erosion. Previous versions of the program automatically initialized
the threshold to zero. A recent application study using continuous
simulation found that a threshold of zero often resulted in the entire
simulation being treated as a single event for purposes of
computing erosion. The threshold is now set to a default of 1.0
cubic meters per second (1.0 cubic feet per second). Old project
data will continue to use the previously specified threshold. Newly
created project data will include the new default value. The
threshold value can be easily changed in either old or new project
data through the erosion Component Editor.
9. HEC-HMS Version 4.2 Release Notes
7
Entry and Display of Calendar Dates
Previous versions of the program processed calendar dates using
the language setting on the computer. All dates entered by the
user were processed using this setting and all computed results
were displayed using this setting. Date processing failures were
supposed to revert to processing in English but it was inconsistent.
Often it was necessary to change the language setting on the
computer to English in order for the program to process calendar
dates correctly. There is now an option in the Program Settings to
select the language and country for processing calendar dates.
Dates should be entered using two digits for the day, followed by
the natural abbreviation of the month in the selected language and
country, followed by the four-digit year. Computed results will be
displayed using the same convention.
Problems Repaired
Several errors were found in the program and repaired. Complete
descriptions of each error are given below.
Graphs and Tables after Unit System Change
Graphs, summary tables, and time-series tables are designed to
remain open during a simulation and automatically update after the
simulation is completed. It was found that the displayed units often
did not update correctly after changes to the basin or meteorologic
model unit system. All results now display the correct units after
changes the unit system.
Renaming a Project
Many projects include HEC-DSS files for storing time-series,
paired, and grid data. It was discovered that links to these HEC-
DSS files could become corrupted while renaming a project.
Enhancements have been made to correctly update links to all
HEC-DSS files during the process of renaming a project.
Project Name Ending in a Space
It was found that entering a project name ending with a space could
lead to significant problems with file management in the project
directory. Now, when creating a new project, any spaces at the
beginning or end of the name are automatically removed.
Removing leading and trailing spaces keeps the file management
of the project operating normally.
10. HEC-HMS Version 4.2 Release Notes
8
Clipboard Paste into Global Editors
The clipboard paste feature would fail if used in a global editor that
included a selection box also known as a combo-box. The feature
has been improved to work with all possible types in a global editor.
Gridded Green Ampt
The gridded Green Ampt loss rate method was essentially
unusable in previous versions. Corrections have been made and
new tests developed. It is now fully available for use when
combined with the ModClark transform method.
Gridded Simple Surface
The gridded simple surface component in the subbasin allows the
user to specify a different surface storage depth for each grid cell in
the subbasin. The storage depths are specified using a parameter
grid. It was discovered that missing data in the parameter grid was
not processed correctly in the gridded simple surface components,
leading to errors in the computed cell storage. New error checking
has been added to screen for missing data values in the parameter
grid in order to avoid errors in the computations.
Start States with ModClark
Save states can be created during a simulation run and then used
later to initialize a different simulation run. This feature can be used
to create perfectly continuous simulation results using multiple runs,
even if the runs stop and start in the middle of a precipitation event.
It was found that start states would fail to initialize the second
simulation run if the same grid cell coordinates occurred more than
once in a subbasin. However, using the same cell multiple times in
a subbasin may be necessary if the cell is located on the boundary
of the subbasin. Enhancements in the save state file have been
made to fully support multiple grid cells with the same coordinates.
Soil Moisture Accounting and Baseflow
The program is designed to allow any loss rate method to be used
in conjunction with any baseflow method. However, special
capabilities exist when using the soil moisture accounting loss rate
method with the linear reservoir baseflow method. Lateral outflow
from groundwater layers in the loss rate method are transferred to
the equivalent layers in the baseflow method. It was discovered
that the lateral outflow was not transferred correctly, leading to
errors in computed baseflow, if the loss rate method specified zero
storage for the upper groundwater layer while using storage greater
11. HEC-HMS Version 4.2 Release Notes
9
than zero in the lower groundwater layer. It was determined that it
would be impossible to support this specific configuration of the
groundwater layers. Therefore, new error checking was added to
prevent incorrect lateral outflow calculations. Soil moisture
accounting can now use no groundwater layers by setting the
storage to zero in both layers. It can use both layers by specifying
a storage value in each. If only one layer will be used, then it must
be the upper layer, which is achieved by setting the storage in the
lower layer to zero.
Annual Percentage Pattern and Leap Year
The annual percentage pattern is one type of paired data that can
be used in some components to modify a parameter throughout the
year. The input data for the pattern is a table of dates specified as
day and month, along with a percentage to apply to the parameter.
It was found that entering 29Feb for the date would cause problems
in the annual pattern. The annual pattern has been enhanced to
support leap year. Data entered for 29Feb is only used during a
leap year otherwise it is ignored.
Deleted Gage Reappears
A time-series gage can be deleted from the gage manager or
directly from the Watershed Explorer. It was found that deleted
gages reappeared the next time the project was opened for use.
This was because the gage was not removed from the list of
available resources in the project. The gage is now correctly
removed from the resources and will not reappear the next time the
project is used.
Deleted Forecast Alternative Not Removed
A forecast alternative can be deleted from the forecast manager or
directly in the Watershed Explorer. It was discovered that deleted
alternatives were not removed from the project. This was because
the deleted alternative was not removed from the list of project
resources. It is now correctly removed as part of the deletion
operation.
Optimization Trial Missing Parameters
Parameters could be lost from an optimization trial under certain
conditions. The parameters were most likely to be lost when
switching back and forth between two new trials. Parameters were
typically maintained correctly for established trials. Parameters are
now correctly managed for both established and new trials.
12. HEC-HMS Version 4.2 Release Notes
10
New Depth-Area Analysis Not Saved
A new depth-area analysis can be created using a wizard accessed
from the Compute menu or the analysis manager. It was
discovered that a depth-area analysis could be created, analysis
points selected, and a simulation completed. However, the new
analysis disappeared after the program was closed. Existing
analyses were not similarly affected. It was found that the new
analysis was not correctly added to the list of available resources in
the project. The new analysis is now correctly added to the
resources and will be part of the project the next time it is used.
Documentation
The Hydrologic Modeling System HEC-HMS: Quick Start Guide
(Version 4.2 August 2016) provides a brief description of the
program for new users. It describes the different parts of the
interface and the basic steps necessary to obtain simulation results.
A tutorial takes the user through the creation of a new project and
shows how to obtain results. The guide has been updated to reflect
changes in the interface.
The Hydrologic Modeling System HEC-HMS: User's Manual
(Version 4.2 August 2016) contains extensive information on
installing and using the program. Details on the use of each of the
features and capabilities in the program are included. The manual
has been updated with information describing new features added
to the program for this Version 4.2 release.
The Hydrologic Modeling System HEC-HMS: Validation Guide
(Version 4.2 August 2016) contains information on the procedures
used to certify the software for release. The manual describes the
tests that have been established and the procedures used for
determining the correct result for each test. An accompanying data
kit includes all of the project data necessary to replicate the tests
performed at HEC prior to certifying a new release for distribution.
The Hydrologic Modeling System HEC-HMS: Applications Guide
(March 2015) illustrates how to apply the program in a variety of
different studies. Data requirements, calibration procedures, and
typical results presentation styles are provided for studies ranging
from flood risk management to sediment yield.
The Hydrologic Modeling System HEC-HMS: Technical Reference
Manual (March 2000) continues to accurately describe the
mathematical models included in the program. New simulation
capabilities have been added to the program and are not included
13. HEC-HMS Version 4.2 Release Notes
11
in the manual. The manual is currently undergoing a major revision
to expand documentation of existing mathematical models and fully
describe the newly added models.
Support Policy
Technical support for program users within the U.S. Army Corps of
Engineers is provided through an annual subscription service.
Subscribing offices can expect full support from HEC staff in the
routine application of the program. Users are strongly urged to
consult with HEC staff on the technical feasibility of using the
program before beginning a project with unique requirements such
as grid cell hydrology, snow melt, continuous simulation, sediment
transport, or water quality. Special guidance is also available for
the development of models for flow forecasting. Extended support
for large or complex projects can be arranged under a separate
reimbursable project agreement.
Support cannot be provided to users outside the U.S. Army Corps
of Engineers. Several companies and organizations offer varying
levels of support, some through a fee-for-service support similar to
the support provided to subscribing Corps offices. Such service
agreements are between the user and the vendor and do not
include HEC staff. Vendors can be located through internet
searches.
Reporting of suspected program errors is unrestricted and we will
reply to all correspondence concerning such errors. We are
continuously working to improve the program and possible bugs
should always be reported. Reports should include a written
description of the steps that lead to the problem and the effects that
result from it. If we cannot reproduce the reported problem, we
may ask you to send a copy of your project.
Request support or report program errors through the following
channels:
• Visit our web site at http://www.hec.usace.army.mil.
• Send email to hec.hms@usace.army.mil on the internet.
• Fax 530.756.8250 any time.
• Call +1.530.756.1104, 7:30 am to 4:30 pm Pacific Time
Monday through Friday.
14. HEC-HMS Version 4.2 Release Notes
12
The postal address for the development team:
U.S. Army Corps of Engineers
Institute for Water Resources
Hydrologic Engineering Center
609 2nd Street
Davis, CA 95616
United States