Software metrics can be used to measure various attributes of software products and processes. There are direct metrics that immediately measure attributes like lines of code and defects, and indirect metrics that measure less tangible aspects like functionality and reliability. Metrics are classified as product metrics, which measure attributes of the software product, and process metrics, which measure the software development process. Project metrics are used tactically within a project to track status, risks, and quality, while process metrics are used strategically for long-term process improvement. Common software quality attributes that can be measured include correctness, maintainability, integrity, and usability.
Software metricsIntroduction
Attributes of Software Metrics
Activities of a Measurement Process
Types
Normalization of Metrics
Help software engineers to gain insight into the design and construction of the software
Activities of a Measurement Process
To answer this we need to know the size & complexity of the projects.
But if we normalize the measures, it is possible to compare the two
For normalization we have 2 ways-
Size-Oriented Metrics
Function Oriented Metrics
Software metricsIntroduction
Attributes of Software Metrics
Activities of a Measurement Process
Types
Normalization of Metrics
Help software engineers to gain insight into the design and construction of the software
Activities of a Measurement Process
To answer this we need to know the size & complexity of the projects.
But if we normalize the measures, it is possible to compare the two
For normalization we have 2 ways-
Size-Oriented Metrics
Function Oriented Metrics
This ppt covers the following topics
Software quality
A framework for product metrics
A product metrics taxonomy
Metrics for the analysis model
Metrics for the design model
Metrics for maintenance
Quality, quality concepts
Software Quality Assurance
Software Reviews
Formal Technical Reviews
SQA Group Plan
ISO 9000, 9001
Example
Internal and external attributes
It is one of the topics of Software Engineering. Formal Approaches to SQA. It contains the information related to formal approaches and necessity of the approach.
What is Quality ||
Software Quality Metrics ||
Types of Software Quality Metrics ||
Three groups of Software Quality Metrics ||
Customer Satisfaction Metrics ||
Tools used for Quality Metrics/Measurements ||
PERT and CPM ||
This ppt covers the following topics
Software quality
A framework for product metrics
A product metrics taxonomy
Metrics for the analysis model
Metrics for the design model
Metrics for maintenance
Quality, quality concepts
Software Quality Assurance
Software Reviews
Formal Technical Reviews
SQA Group Plan
ISO 9000, 9001
Example
Internal and external attributes
It is one of the topics of Software Engineering. Formal Approaches to SQA. It contains the information related to formal approaches and necessity of the approach.
What is Quality ||
Software Quality Metrics ||
Types of Software Quality Metrics ||
Three groups of Software Quality Metrics ||
Customer Satisfaction Metrics ||
Tools used for Quality Metrics/Measurements ||
PERT and CPM ||
Software Measurement: Lecture 1. Measures and MetricsProgrameter
Materials of the lecture on metrics and measures held by Programeter leadership during the Software Economics course at Tartu University: courses.cs.ut.ee/2010/se
Software Testing is a very time consuming activity and consumes enormous amount of effort in any software project. It makes sense to improve productivity of software testing as well as to reduce the defect density in the software, so that overall economy in the project is achieved. In order to do this, we need to understand the defects, their root causes and be able to predict their outcome in advance during estimation.
This presentation by Oaksys is an attempt to share its experience of over 10 years (1998-2008) with the practitioners.
This is short review of project matrices. This short lecture provides an overview that how software project matrices help software project manager to make accurate estimates.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
Contact with Dawood Bhai Just call on +92322-6382012 and we'll help you. We'll solve all your problems within 12 to 24 hours and with 101% guarantee and with astrology systematic. If you want to take any personal or professional advice then also you can call us on +92322-6382012 , ONLINE LOVE PROBLEM & Other all types of Daily Life Problem's.Then CALL or WHATSAPP us on +92322-6382012 and Get all these problems solutions here by Amil Baba DAWOOD BANGALI
#vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore#blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #blackmagicforlove #blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #Amilbabainuk #amilbabainspain #amilbabaindubai #Amilbabainnorway #amilbabainkrachi #amilbabainlahore #amilbabaingujranwalan #amilbabainislamabad
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
AIRCRAFT GENERAL
The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
The family offers a choice of engines
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
Quality defects in TMT Bars, Possible causes and Potential Solutions.PrashantGoswami42
Maintaining high-quality standards in the production of TMT bars is crucial for ensuring structural integrity in construction. Addressing common defects through careful monitoring, standardized processes, and advanced technology can significantly improve the quality of TMT bars. Continuous training and adherence to quality control measures will also play a pivotal role in minimizing these defects.
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
2. • MEASURE: A quantitative indication of the extent, amount, dimension, or size of some attribute
of a product or process (e.g. number of errors)
• METRICS: The degree to which a system, component, or process possesses a given attribute.It
Relates several measures (e.g. average number of errors found per person hour).
• INDICATORS: An indicator is a metric or combination of metrics that provide insight into the
software process, a software project, or the product itself.
• DIRECT METRICS: Immediately measurable attributes (e.g. line of code, execution speed,
defects reported).
• INDIRECT METRICS: Aspects that are not immediately quantifiable (e.g. functionality,
quantity, reliability).
• MEASUREMENT is the process by which numbers or symbols are assigned to the attributes of
the entities in the real world in such a way as to define them accordingly to clearly defined rules.
• FAULTS:
Errors: Faults found by the developers during software development.
Defects: Faults found by the customers after release.
BASIC TERMINOLOGIES
3. WHY MEASURE SOFTWARE?
• Establish baselines for comparisons with future assessments.
• To evaluate the status with respect to plans.
• Predict qualities of a product or a process by gaining understandings of relationships
among process and products.
• Improve product quality and process performance by identifying roadblocks and
inefficiencies.
4. A Good Manager Measures
Measurement Project metrics
Process metricsProcess
Product metrics
Product
5. METRICS GUIDELINES
• Use common sense and organizational sensitivity when interpreting metrics data.
• Provide regular feedback to the individuals and teams who collect measures and
metrics.
• Don’t use metrics to appraise individuals.
• Work with practitioners and teams to set clear goals and metrics that will be used to
achieve them.
• Never use metrics to threaten individuals or teams.
• Metrics data that indicate a problem area should not be considered “negative.” These
data are merely an indicator for process improvement.
• Don’t obsess on a single metric to the exclusion of other important metrics.
6. Product Metrics
• Product metrics help the software engineers gain insight into the design and
construction of the software they build by focussing on specific and measurable
attributes of the work products.
• These metrics examine the requirements model with the intent of predicting the size
and complexity of the resulting system.
7. Function-ORIENTED metrics
• The Function point (FP) metric can be used effectively as a means for measuring the
functionality delivered by a system.
• The FP metric can be used to -
a. Estimate the cost or effort required to design, code and test the software.
b. Predict the number of errors that will be encountered during testing
c. Forecast the number of components in the system
8. • Function points are derived using an empirical relationship based on countable (direct)
measures of software's information domain and assessments of software complexity.
• Information domain values are defined in the following manner:
• Number of external inputs (EIs)
• Number of external outputs (EOs)
• Number of external inquiries (EQs)
• Number of internal logical files (ILFs)
• Number of external interface files (EIFs)
COMPUTINGFUNCTIONAL POINTS
9. Analyzing the Information Domain
Information
Domain Value Count simple average complex
Weighting factor
External Inputs ( EIs)
External Outputs ( EOs)
External Inquiries ( EQs)
Internal Logical Files ( ILFs)
External Interface Files ( EIFs)
3 4 6
4 5 7
3 4 6
7 10 15
5 7 10
=
=
=
=
=
Count total
3
3
3
3
3
Information
Domain Value Count simple average complex
Weighting factor
External Inputs ( EIs)
External Outputs ( EOs)
External Inquiries ( EQs)
Internal Logical Files ( ILFs)
External Interface Files ( EIFs)
3 4 6
4 5 7
3 4 6
7 10 15
5 7 10
=
=
=
=
=
Count total
3
3
3
3
3
X
X
X
X
10. Taking Complexity into Account
1. Does the system require reliable backup and recovery?
2. Are specialized data communications required to transfer information to or from the application?
3. Are there distributed processing functions?
4. Is performance critical?
5. Will the system run in an existing, heavily utilized operational environment?
6. Does the system require online data entry?
7. Does the online data entry require the input transaction to be built over multiple screens or
operations?
8. Are the ILFs updated online?
9. Are the inputs, outputs, files, or inquiries complex?
10. Is the internal processing complex?
11. Is the code designed to be reusable?
12. Are conversion and installation included in the design?
13. Is the system designed for multiple installations in different organizations?
14. Is the application designed to facilitate change and ease of use by the user?
The Fi ( i=1 to 14) are value adjustment factors (VAF) based on responses to the
following questions.
12. We assume that ∑(Fi) is 38 (a moderately complex product).
Therefore,
FP = count total X [0.65 +(0.01 X ∑(Fi) )]
50 X [0.65 + (0.01 X 38)] = 51.5
13. SIZE-ORIENTED METRICS
• Size oriented metrics are derived by normalizing quality or
productivity measures by considering the size of the software
that has been produced.
A simple set of size-oriented metrics can be developed for each
project :
• Errors per KLOC
• Defects per KLOC
• Cost per KLOC
• Pages of documentation per KLOC
14. Why Opt for FP?
• FP is not restricted to code whereas LOC is defined on code.
• FP is Language independent whereas LOC is not.
• In FP, the necessary data is available early in a project. We need only a detailed
specification whereas in LOC, it is the measure of lines of code which is not available
early in the project .
• FP takes account of functionality or complexity of the product whereas LOC
characterize only one specific view of size , namely length .
15. PROCESS METRICS
• Process metrics are used for strategic purposes.
• Process metrics are collected across all projects and over long period of time. Their intent
is to provide a set of process indicators that lead to long-term software process
improvement.
• The only way to improve any process is to measure specific attributes of the process,
develop a set of meaningful metrics based on the outcomes and then use the metrics to
provide indicators that will lead to strategic improvements.
17. PROJECT METRICS
• Unlike process metrics, software project metrics are used for tactical purposes.
• Project metrics and the indicators derived from them enables a software project manager to -
• assess the status of an ongoing project,
• track potential risks,
• uncover problem areas before they go “critical,”
• adjust work flow or tasks, and
• evaluate the project team’s ability to control quality of software work products.
The intent of these metrics is twofold -
1. It is used to minimize the development schedule by making the adjustments necessary to
avoid delays and mitigate potential problems and risks
2. It is used to assess product quality on an ongoing basis and, when necessary, modify the
technical approach to improve quality.
As the quality improves, defects are minimized and the amount of rework required during the
project is also reduced , which leads to the reduction in overall project cost.
18. • Correctness — The degree to which a program operates correctly
according to specification. A program must operate correctly or it
provides no value to it’s users. The most common measure for
correctness is the defects per KLOC.
• Maintainability—It is the ease with which a program can be
corrected if an error is encountered, adapted if it’s environment
changes or enhanced if the customer desires a change in the
requirements.
• Integrity— This is the measure of the system’s ability to withstand
attacks to it’s security.
• Usability—The degree to which a program is easy to use.
Measuring Quality
19. Defect Removal Efficiency
• A quality metric that provides benefit at both the project and the process level is defect
removal efficiency.
• DRE gives a measure of the development team ability to remove defects prior to release.
When considered for a project as a whole, DRE is defined as-
DRE= E/(E+D)
Where
E is the number of errors found before delivery of the software to the end-user
D is the number of defects found after delivery
• DRE can also be used within the project to find errors before development team is passed
to the next software engineering action. In this context, DRE is defined as-
DRE= Ei /(Ei+ E i+1)
Where
Ei is the no of errors found during engineering action i
E i+1 is the no of errors found during engineering action i+1
20. BIBLIOGRAPHY
• Software Engineering A Practitioner’s Approach, Roger S. Pressman
• http://www.tutorialspoint.com/index.htm
• http://www.sqa.net/softwarequalitymetrics.html
• http://resources.sei.cmu.edu/library/asset-view.cfm?assetid=10537