This document discusses software quality factors and McCall's quality factor model. It describes McCall's three main quality factor categories: product operation factors, product revision factors, and product transition factors. Under product operation factors, it outlines reliability, correctness, integrity, efficiency, and usability requirements. It then discusses product revision factors of maintainability, flexibility, and testability. Finally, it covers product transition factors including portability, reusability, and interoperability. The document provides details on the specific requirements for each quality factor.
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 ||
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 lecture is about the detail definition of software quality and quality assurance. Provide details about software tesing and its types. Clear the basic concepts of software quality and software testing.
This lecture is about the detail definition of software quality and quality assurance. Provide details about software tesing and its types. Clear the basic concepts of software quality and software testing.
The increasing availability of COTS (commercial-off-the-shelf) components in the market of software
development has concretized the opportunity of building whole systems based on previously built components. Component-
Based Software Engineering (CBSE) is an approach which is used to improve efficiency and productivity of software system
with the help of reusability. CBSE approach improves software development productivity and software quality by selecting
pre-existing software components. Reusability in Component-Based Software Development (CBSD) not only reduces the
time to market in development but also brings the cost down of development heavily. This paper represents the challenges
which are faced by software developer during component selection like reliability, time, components size, fault tolerance,
performance, components functionality and components compatibility. This paper also summarizes algorithms used for
component retrieval according to availability of component subset.
International Journal of Engineering and Science Invention (IJESI) is an international journal intended for professionals and researchers in all fields of computer science and electronics. IJESI publishes research articles and reviews within the whole field Engineering Science and Technology, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
Chapter 3 - Performance Testing in the Software LifecycleNeeraj Kumar Singh
This is chapter 3 of ISTQB Specialist Performance Tester certification. This presentation helps aspirants understand and prepare the content of the certification.
A New Model for Study of Quality Attributes to Components Based Development A...Kiogyf
A New Model for Study of Quality Attributes to Components Based Development Approach
by bstract :
Software development costs, time - to release and quality product are important factors affecting the construction of software. Different types of tools and techniques are suggested by researchers to improve in delivering quality software systems with lower cost and reduce time to delivery. One such practice is development of software using ased Software Development (CBSD) techniques. CBSD recommended Component Bbuilding software systems using existing reusable components, instead of writing from scratch. The main objective of CBSD is to writes once and reuse any number of time with no or modification . Some of the advantages that a company may available by adapting CBSD for the Software development are shorter development time which results in meet tight dead line, increase productivity and Quality Product. CBSD also, s paper is to develop the new model of software support reusability. The aim of thiproduct and describe the characteristics of some selected of attributes of CBSD models that are widely practiced in software industries. We proposed a complete model for or reuse. This Model will cover both Component Based Software Development fcomponent based software development as well as Component development phases for
A - Model. This Model is represent one good solution for Component Based Development with reduce cost and time to deliverable and save the quality of product . Keywords: Component Based Approach, Quality Model, Quality Attributes, , A - Model for CBD .
1. Introduction
New Model to Achieve Software Quality Assurance (SQA) in Web Applicationijsrd.com
The quality of product and services has become one of the most important factors that influence national and international business , Software Quality Assurance (SQA) is an integral part of the software development process; with the rapid technology and development in software application, we must enhance the quality of product; and with the rapid development in interaction between the customers and web service and the technological challenges in the quality provided , we proposed new model to achieve Software Quality in Web Application and the model divide into three parts, the first part: server side, second part: Client side and the third part :Server side intersection Client side and there party factors helps to enhance SQA .
Software Requirements Specification
for
<Project>
Version 1.0 approved
Prepared by <author>
<organization>
<date created>
Table of Contents
iiTable of Contents
Revision History
ii
1.
Introduction
1
1.1
Purpose
1
1.2
Document Conventions
1
1.3
Intended Audience and Reading Suggestions
1
1.4
Project Scope
1
1.5
References
1
2.
Overall Description
2
2.1
Product Perspective
2
2.2
Product Features
2
2.3
User Classes and Characteristics
2
2.4
Operating Environment
2
2.5
Design and Implementation Constraints
2
2.6
User Documentation
2
2.7
Assumptions and Dependencies
3
3.
System Features
3
3.1
System Feature 1
3
3.2
System Feature 2 (and so on)
4
4.
External Interface Requirements
4
4.1
User Interfaces
4
4.2
Hardware Interfaces
4
4.3
Software Interfaces
4
4.4
Communications Interfaces
4
5.
Other Nonfunctional Requirements
5
5.1
Performance Requirements
5
5.2
Safety Requirements
5
5.3
Security Requirements
5
5.4
Software Quality Attributes
5
6.
Other Requirements
5
Appendix A: Glossary
5
Appendix B: Analysis Models
6
Appendix C: Issues List
6
Revision History
Name
Date
Reason For Changes
Version
1. Introduction
1.1 Purpose
<Identify the product whose software requirements are specified in this document, including the revision or release number. Describe the scope of the product that is covered by this SRS, particularly if this SRS describes only part of the system or a single subsystem.>
1.2 Document Conventions
<Describe any standards or typographical conventions that were followed when writing this SRS, such as fonts or highlighting that have special significance. For example, state whether priorities for higher-level requirements are assumed to be inherited by detailed requirements, or whether every requirement statement is to have its own priority.>
1.3 Intended Audience and Reading Suggestions
<Describe the different types of reader that the document is intended for, such as developers, project managers, marketing staff, users, testers, and documentation writers. Describe what the rest of this SRS contains and how it is organized. Suggest a sequence for reading the document, beginning with the overview sections and proceeding through the sections that are most pertinent to each reader type.>
1.4 Project Scope
<Provide a short description of the software being specified and its purpose, including relevant benefits, objectives, and goals. Relate the software to corporate goals or business strategies. If a separate vision and scope document is available, refer to it rather than duplicating its contents here. An SRS that specifies the next release of an evolving product should contain its own scope statement as a subset of the long-term strategic product vision.>
1.5 References
<List any other documents or Web addresses to which this SRS refers. These may include user interface style guides, contracts, standards, system requirements specifications, use case documents, or a vision and scope document. Provide enough information .
ISOIEC 9126Software engineering — Product quality was an intern.docxpriestmanmable
ISO/IEC 9126Software engineering — Product quality was an international standard for the evaluation of software quality. It has been replaced by ISO/IEC 25010:2011. The fundamental objective of the ISO/IEC 9126 standard is to address some of the well known human biases that can adversely affect the delivery and perception of a software development project. These biases include changing priorities after the start of a project or not having any clear definitions of "success." By clarifying, then agreeing on the project priorities and subsequently converting abstract priorities (compliance) to measurable values (output data can be validated against schema X with zero intervention), ISO/IEC 9126 tries to develop a common understanding of the project's objectives and goals.
Quality model
The quality model presented in the first part of the standard, ISO/IEC 9126-1, classifies software quality in a structured set of characteristics and sub-characteristics as follows:
1. Functionality - A set of attributes that bear on the existence of a set of functions and their specified properties. The functions are those that satisfy stated or implied needs.
a. Suitability
b. Accuracy
c. Interoperability
d. Security
e. Functionality Compliance
2. Reliability - A set of attributes that bear on the capability of software to maintain its level of performance under stated conditions for a stated period of time.
a. Maturity
b. Fault Tolerance
c. Recoverability
d. Reliability Compliance
3. Usability - A set of attributes that bear on the effort needed for use, and on the individual assessment of such use, by a stated or implied set of users.
a. Understandability
b. Learnability
c. Operability
d. Attractiveness
e. Usability Compliance
4. Efficiency - A set of attributes that bear on the relationship between the level of performance of the software and the amount of resources used, under stated conditions.
a. Time Behaviour
b. Resource Utilization
c. Efficiency Compliance
5. Maintainability - A set of attributes that bear on the effort needed to make specified modifications.
a. Analyzability
b. Changeability
c. Stability
d. Testability
e. Maintainability Compliance
6. Portability - A set of attributes that bear on the ability of software to be transferred from one environment to another.
a. Adaptability
b. Installability
c. Co-Existence
d. Replaceability
e. Portability Compliance
· Quality in use metrics.
Quality in use metrics is only available when the final product is used in real conditions.
Ideally, the internal quality determines the external quality and external quality determines quality in use.
This standard stems from the GE model for describing software quality, presented in 1977 by McCall et al., which is organized around three types of Quality Characteristics:
· Factors (To specify): They describe the external view of the software, as viewed by the users.
· Criteria (To build): They describe the internal view of the software, as seen by the develop ...
Let's dive deeper into the world of ODC! Ricardo Alves (OutSystems) will join us to tell all about the new Data Fabric. After that, Sezen de Bruijn (OutSystems) will get into the details on how to best design a sturdy architecture within ODC.
Search and Society: Reimagining Information Access for Radical FuturesBhaskar Mitra
The field of Information retrieval (IR) is currently undergoing a transformative shift, at least partly due to the emerging applications of generative AI to information access. In this talk, we will deliberate on the sociotechnical implications of generative AI for information access. We will argue that there is both a critical necessity and an exciting opportunity for the IR community to re-center our research agendas on societal needs while dismantling the artificial separation between the work on fairness, accountability, transparency, and ethics in IR and the rest of IR research. Instead of adopting a reactionary strategy of trying to mitigate potential social harms from emerging technologies, the community should aim to proactively set the research agenda for the kinds of systems we should build inspired by diverse explicitly stated sociotechnical imaginaries. The sociotechnical imaginaries that underpin the design and development of information access technologies needs to be explicitly articulated, and we need to develop theories of change in context of these diverse perspectives. Our guiding future imaginaries must be informed by other academic fields, such as democratic theory and critical theory, and should be co-developed with social science scholars, legal scholars, civil rights and social justice activists, and artists, among others.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
2.
Quality Factor
The need for comprehensive software quality
requirements
Classifications of software requirements into
software quality factors
McCall’s factor model
3.
The various attributes of software and its use
and maintenance, as defined in software
requirements documents ,can be classified
into content groups called quality factors.
4.
There is a need for a comprehensive definition of
requirements that will cover all attributes of
software and aspects of the use of software,
including usability aspects, reusability aspects,
maintainability aspects, and so forth in order to
assure the full satisfaction of the users.
8.
Reliability requirements deal with failures to provide service.
They determine the maximum allowed software system
failure rate, and can refer to the entire system or to one or
more of its separate functions.
9.
Correctness requirements are defined in a list
of the software system’s required outputs.
▪
▪
▪
▪
▪
▪
The output mission
Accuracy of output
Completeness of the output information
Up-to-date of the information
Availability of the information
The standard for coding and documenting of software
system
10.
Integrity requirements deal with the software system
security, that is, requirements to prevent access to
unauthorized persons, to distinguish between the majority
of personnel allowed to see the information (“read permit”)
and a limited group who will be allowed to add and change
data (“write permit”), and so forth.
11.
Efficiency requirements deal with the hardware resources
needed to perform all the functions of the software system
in conformance to all other requirements. The main
hardware resources to be considered are the computer’s
processing capabilities (measured in MIPS – million
instructions per second ,etc.)
12.
Usability requirements deal with the scope of staff
resources needed to train a new employee and to
operate the software system.
End of 3-1
14.
Maintainability requirements determine the efforts that will
be needed by users and maintenance personnel to identify
the reasons for software failures, to correct the failures, and
to verify the success of the corrections.
This factor’s requirements refer to the modular structure of
software, the internal program documentation, and the
programmer’s manual, among other items.
15.
The capabilities and efforts required to
support adaptive maintenance activities are covered by the
flexibility requirements. These include the resources(i.e. in
man-days) required to adapt a software package to a variety
of customers of the same trade, of various extents of
activities, of different ranges of products and so on.
This factor’s requirements also support perfective
maintenance activities.
16.
Testability requirements deal with the testing of an
information system as well as with its operation.
Testability requirements for the ease of testing are
related to special features in the programs that help
the tester, for instance by providing predefined
intermediate results and log files.
18.
Portability requirements tend to the adaptation of a
software system to other environments consisting of
different hardware, different operating systems.
19.
Reusability requirements deal with the use of
software modules originally designed for one
project in a new software project currently being
developed.
20.
Interoperability requirements focus on creating interfaces
with other software systems or with other equipment
firmware (for example, the firmware of the production
machinery and testing equipment interfaces with the
production control software).
Interoperability requirements can specify the name(s) of the
software or firmware for which interface is required. They
can also specify the output structure accepted as standard in
a specific industry or applications area.
21.
22.
Some quality factors not included in the typical client’s
requirements document may, in many cases, interest the
developer. The following list of quality factors usually
interest the developer whereas they may raise very little
interest on the part of the client:
Portability
Reusability
Verifiability
23.
quality factors is examined by design reviews,
software inspections, software tests, and so forth.
Comprehensive discussions of design reviews,
software testing, software quality metrics and other
tools for verifying and validating the quality of
software are provided in the balance of this book.
24.
Chapter 3:Daniel Galin. SOFTWARE QUALITY ASSURANCE From
theory to implementation. Pearson Education Limited,2004.