The document introduces software engineering and discusses its objectives, topics covered, and key concepts. It aims to define software engineering, explain why it is important, and introduce professional responsibilities. Some key points covered include defining software and the software engineering process, discussing costs and challenges, and introducing ethics codes.
The document introduces software engineering and discusses its importance. It explains that software engineering is concerned with the theories, methods and tools for professional software development. It also discusses key questions about software engineering, including definitions of software and the software engineering process. Professional and ethical responsibilities of software engineers are also covered.
This document summarizes the key topics from the first chapter of Ian Sommerville's Software Engineering textbook. It introduces software engineering and explains its importance in developed economies. It discusses what software engineering entails, how it differs from computer science and system engineering. It also covers software processes and models, costs of software development, methods and CASE tools. Finally, it discusses professional responsibilities and ethical issues for software engineers.
This document provides an introduction to software engineering. It discusses what software engineering is, how it differs from computer science and systems engineering, common software engineering processes and methods, costs associated with software engineering, and challenges facing the discipline. The key topics covered are definitions of software and software engineering, differences between related fields, typical software development activities and lifecycles, cost distribution over the development process, and methods, tools and important quality attributes for software.
This document introduces software engineering and discusses its importance. It explains that software engineering is concerned with the theories, methods and tools for professional software development. The document outlines key topics that will be covered, such as frequently asked questions about software engineering, professional and ethical responsibilities, and the costs associated with software engineering. It also discusses challenges facing the field like coping with legacy systems and demands for faster delivery.
Greate Introduction to Software Engineering @ Track IT AcademyMohamed Shahpoup
The document provides an overview of software engineering concepts including software processes, rapid software development, practices, and a case study on the V-Model process. It defines software and software engineering. It describes common software process models like waterfall, iterative development, and component-based development. It also covers rapid software development approaches like incremental delivery and agile methods. Key practices discussed include pair programming, prototyping, and activities in the software development lifecycle. Finally, it presents the phases of the V-Model process and how it maps testing to requirements and design.
The document summarizes key concepts in software engineering:
1. It discusses several software process models including waterfall, evolutionary development, formal transformation, and reuse-based development. These models describe different approaches to organizing the software development process.
2. It also covers software lifecycle phases like requirements, design, implementation, testing, and evolution. Activities within each phase are outlined.
3. Automated tools and techniques for supporting the software engineering process are introduced, categorized by the type of support they provide for different process activities.
The document provides an introduction to software engineering. It discusses that software has a dual role as both a product and vehicle to deliver functionality. It defines software as a set of programs, documents, and data that form a configuration. The document outlines different types of software applications and categories. It also discusses software engineering practices such as communication, planning, modeling, construction, and coding principles.
This document provides an introduction to software engineering. It defines software engineering as the systematic application of engineering principles to software development, maintenance, and operation. The document discusses key questions about software engineering, including what it is, how it differs from computer science and systems engineering, the "software crisis" involving cost overruns and defects, and attributes of good software like maintainability and dependability. It also covers software engineering processes, methods, costs, and challenges.
The document introduces software engineering and discusses its importance. It explains that software engineering is concerned with the theories, methods and tools for professional software development. It also discusses key questions about software engineering, including definitions of software and the software engineering process. Professional and ethical responsibilities of software engineers are also covered.
This document summarizes the key topics from the first chapter of Ian Sommerville's Software Engineering textbook. It introduces software engineering and explains its importance in developed economies. It discusses what software engineering entails, how it differs from computer science and system engineering. It also covers software processes and models, costs of software development, methods and CASE tools. Finally, it discusses professional responsibilities and ethical issues for software engineers.
This document provides an introduction to software engineering. It discusses what software engineering is, how it differs from computer science and systems engineering, common software engineering processes and methods, costs associated with software engineering, and challenges facing the discipline. The key topics covered are definitions of software and software engineering, differences between related fields, typical software development activities and lifecycles, cost distribution over the development process, and methods, tools and important quality attributes for software.
This document introduces software engineering and discusses its importance. It explains that software engineering is concerned with the theories, methods and tools for professional software development. The document outlines key topics that will be covered, such as frequently asked questions about software engineering, professional and ethical responsibilities, and the costs associated with software engineering. It also discusses challenges facing the field like coping with legacy systems and demands for faster delivery.
Greate Introduction to Software Engineering @ Track IT AcademyMohamed Shahpoup
The document provides an overview of software engineering concepts including software processes, rapid software development, practices, and a case study on the V-Model process. It defines software and software engineering. It describes common software process models like waterfall, iterative development, and component-based development. It also covers rapid software development approaches like incremental delivery and agile methods. Key practices discussed include pair programming, prototyping, and activities in the software development lifecycle. Finally, it presents the phases of the V-Model process and how it maps testing to requirements and design.
The document summarizes key concepts in software engineering:
1. It discusses several software process models including waterfall, evolutionary development, formal transformation, and reuse-based development. These models describe different approaches to organizing the software development process.
2. It also covers software lifecycle phases like requirements, design, implementation, testing, and evolution. Activities within each phase are outlined.
3. Automated tools and techniques for supporting the software engineering process are introduced, categorized by the type of support they provide for different process activities.
The document provides an introduction to software engineering. It discusses that software has a dual role as both a product and vehicle to deliver functionality. It defines software as a set of programs, documents, and data that form a configuration. The document outlines different types of software applications and categories. It also discusses software engineering practices such as communication, planning, modeling, construction, and coding principles.
This document provides an introduction to software engineering. It defines software engineering as the systematic application of engineering principles to software development, maintenance, and operation. The document discusses key questions about software engineering, including what it is, how it differs from computer science and systems engineering, the "software crisis" involving cost overruns and defects, and attributes of good software like maintainability and dependability. It also covers software engineering processes, methods, costs, and challenges.
Kelis King offer involve conducting system testing to ensure correct operation, and integration testing to ensure the system integrates correctly with other required systems, such as databases.
This document provides an introduction to software engineering. It discusses key topics like the definition of software engineering, differences between software engineering and computer science, the software development process, methods and costs of software engineering, professional responsibilities, and ethics in the field. The document is from a company called Vibrant Technologies and contains contact information throughout.
Software engineering involves developing computer programs and documentation. It addresses both technical and non-technical aspects of software development. Key activities include specification, development, validation, and evolution. Methods provide guidance on processes, notations, models, and design. Software engineers have responsibilities beyond technical skills, including maintaining confidentiality, competence, and ethical standards set by professional codes of conduct.
Software Engineering is the set of processes and tools to develop software. Software Engineering is the combination of all the tools, techniques, and processes that used in software production. Therefore Software Engineering encompasses all those things that are used in software production like :
Programming Language
Programming Language Design
Software Design Techniques
Tools
Testing
Maintenance
Development etc.
These days object-oriented programming is widely being used. If programming languages will not support object-orientation then it will be very difficult to implement object-oriented design using object-oriented principles. All these efforts made the basis of software engineering.
The document provides an introduction to software engineering concepts. It discusses how software engineering aims to develop reliable software products using well-defined scientific principles and methods. It covers software evolution, different software paradigms including development, design and programming paradigms. It also discusses different software life cycle models like waterfall, incremental, prototyping and spiral models. Finally, it talks about characteristics of good software products and causes of software crisis.
The document provides an overview of software engineering concepts including definitions of software and software engineering. It discusses the importance of software and characteristics that make it different than other engineered products. The document also outlines some common software applications and categories. It defines the key activities in a generic software process including communication, planning, modeling, construction, and deployment. Finally, it provides examples of two case studies - an embedded system in an insulin pump and a patient information system for mental health care.
This document introduces software engineering and discusses its importance, key topics, and professional and ethical responsibilities. It defines software engineering, compares it to computer science and system engineering, and explains software processes and models. It also covers frequently asked questions about software engineering, costs, methods, challenges, and a code of ethics for professional responsibility.
The document discusses software evolution and maintenance. It covers evolutionary software development, the staged model of software lifespan, the phased model of software change, research and teaching approaches, and software maintenance. Key topics include iterative development, concept location, impact analysis, reasoning about evolution, and the end of software evolution. The purpose is to provide an overview of these topics and discuss current research and future directions.
This document provides an introduction to software engineering. It discusses how software engineering is concerned with the development and maintenance of software through professional practices and methods. It notes that software costs, especially maintenance costs, are a large part of overall system costs. The document then discusses different types of software products and specifications, as well as frequently asked questions about software engineering. It emphasizes that software engineering principles should be applied to all types of software development.
Software engineering involves developing software programs and documentation. It aims to introduce key concepts, discuss professional responsibilities, and address common questions. Topics covered include defining software engineering, discussing costs and challenges, and explaining ethical issues. Software engineering is important because modern economies rely on software and costs are significant. Professional responsibilities include maintaining confidentiality, competence, and intellectual property rights.
The document discusses software prototyping techniques used in rapid software development. It describes evolutionary prototyping where an initial prototype is refined through stages to the final system. Throw-away prototyping involves building a prototype to validate requirements and then discarding it. Rapid prototyping techniques discussed include using high-level languages, database programming, and component reuse. The benefits of prototyping include early validation of requirements and improved usability, while challenges include potential maintenance issues from continual changes.
Software process methodologies and a comparative study of various modelsiaemedu
This document provides a summary of different software process methodologies including the waterfall model, iterative model, extreme programming (XP), ISO standards, CMMI, Six Sigma, formal methods, and agile model. It compares these methods and discusses where each is best applied based on factors like project type, risk, and industry. The waterfall model is described as the traditional sequential approach while agile methods embrace adaptive planning and iterative development.
This document provides an introduction to software engineering. It discusses the key participants in software development including customers, users, developers, analysts, designers, programmers, testers and trainers. It also outlines common software development steps and roles. The document notes how factors like object technology, time to market pressures, and user interfaces have changed software engineering. It defines software engineering and compares it to computer science and systems engineering. Finally, it discusses software processes, costs, quality attributes, and challenges facing the field.
This document provides an overview of software engineering and its models. It discusses the evolution of software engineering from the 1960s to present day. It describes key software engineering concepts like the software development life cycle, capability maturity models, and various software development models including waterfall, iterative enhancement, prototyping, spiral, and RAD approaches. The document emphasizes that software engineering applies systematic and disciplined processes to software development in order to address challenges like increasing complexity, high costs, and quality issues.
This document provides an overview of software and software engineering. It defines software, discusses why software is important to modern economies, and outlines some key characteristics of software such as its non-physical nature and tendency to deteriorate over time rather than wear out. The document also introduces common software applications, categories, and costs. Finally, it discusses the importance of software engineering in developing reliable, high-quality software economically.
This document summarizes common software myths and realities. It discusses six myths: 1) that standards and procedures are enough to produce good programs, 2) that new hardware ensures good software, 3) that adding programmers to a late project finishes it on time, 4) that general objectives are enough to begin programming, 5) that software is flexible enough to handle continuous changes, and 6) that the job is done once a program works. For each, it provides the reality, such as that people don't always follow standards, tools are more important than hardware, adding people makes projects later, detailed requirements are needed upfront, changes are costly, and 50-70% of effort is post-delivery including documentation.
This document discusses key aspects of software and software engineering. It describes software's dual role as both a product that transforms information and a vehicle for delivering other products. It outlines different types of software applications and compares hardware and software. The document discusses challenges in software manufacturing versus development. It also summarizes several "laws" of software evolution and common software myths that can lead to bad decisions if believed.
Este documento describe cómo administrar una instancia de Oracle. Explica cómo crear y manejar archivos de parámetros de inicialización, configurar Oracle Managed Files, levantar y bajar una instancia, y monitorear archivos de diagnóstico. Detalla los diferentes tipos de archivos de parámetros, cómo crear y modificar un SPFILE, y cómo iniciar una base de datos en diferentes modos como montado, abierto o restringido.
Este documento describe los pasos para instalar Oracle 10g. Explica los requisitos del sistema, la arquitectura flexible óptima (OFA) para planificar la instalación, e instalar el software con el instalador universal de Oracle. Además, cubre temas como variables de entorno, chequeos previos e inventario.
Este documento describe conceptos clave sobre el uso de variables y constantes en bloques PL/SQL, incluyendo su declaración, tipos de datos, asignación de valores, alcance y consideraciones sobre errores. Se proveen ejemplos de declaraciones de variables, asignación de valores mediante sentencias SELECT e INSERT, y alcance de variables en bloques anidados.
Kelis King offer involve conducting system testing to ensure correct operation, and integration testing to ensure the system integrates correctly with other required systems, such as databases.
This document provides an introduction to software engineering. It discusses key topics like the definition of software engineering, differences between software engineering and computer science, the software development process, methods and costs of software engineering, professional responsibilities, and ethics in the field. The document is from a company called Vibrant Technologies and contains contact information throughout.
Software engineering involves developing computer programs and documentation. It addresses both technical and non-technical aspects of software development. Key activities include specification, development, validation, and evolution. Methods provide guidance on processes, notations, models, and design. Software engineers have responsibilities beyond technical skills, including maintaining confidentiality, competence, and ethical standards set by professional codes of conduct.
Software Engineering is the set of processes and tools to develop software. Software Engineering is the combination of all the tools, techniques, and processes that used in software production. Therefore Software Engineering encompasses all those things that are used in software production like :
Programming Language
Programming Language Design
Software Design Techniques
Tools
Testing
Maintenance
Development etc.
These days object-oriented programming is widely being used. If programming languages will not support object-orientation then it will be very difficult to implement object-oriented design using object-oriented principles. All these efforts made the basis of software engineering.
The document provides an introduction to software engineering concepts. It discusses how software engineering aims to develop reliable software products using well-defined scientific principles and methods. It covers software evolution, different software paradigms including development, design and programming paradigms. It also discusses different software life cycle models like waterfall, incremental, prototyping and spiral models. Finally, it talks about characteristics of good software products and causes of software crisis.
The document provides an overview of software engineering concepts including definitions of software and software engineering. It discusses the importance of software and characteristics that make it different than other engineered products. The document also outlines some common software applications and categories. It defines the key activities in a generic software process including communication, planning, modeling, construction, and deployment. Finally, it provides examples of two case studies - an embedded system in an insulin pump and a patient information system for mental health care.
This document introduces software engineering and discusses its importance, key topics, and professional and ethical responsibilities. It defines software engineering, compares it to computer science and system engineering, and explains software processes and models. It also covers frequently asked questions about software engineering, costs, methods, challenges, and a code of ethics for professional responsibility.
The document discusses software evolution and maintenance. It covers evolutionary software development, the staged model of software lifespan, the phased model of software change, research and teaching approaches, and software maintenance. Key topics include iterative development, concept location, impact analysis, reasoning about evolution, and the end of software evolution. The purpose is to provide an overview of these topics and discuss current research and future directions.
This document provides an introduction to software engineering. It discusses how software engineering is concerned with the development and maintenance of software through professional practices and methods. It notes that software costs, especially maintenance costs, are a large part of overall system costs. The document then discusses different types of software products and specifications, as well as frequently asked questions about software engineering. It emphasizes that software engineering principles should be applied to all types of software development.
Software engineering involves developing software programs and documentation. It aims to introduce key concepts, discuss professional responsibilities, and address common questions. Topics covered include defining software engineering, discussing costs and challenges, and explaining ethical issues. Software engineering is important because modern economies rely on software and costs are significant. Professional responsibilities include maintaining confidentiality, competence, and intellectual property rights.
The document discusses software prototyping techniques used in rapid software development. It describes evolutionary prototyping where an initial prototype is refined through stages to the final system. Throw-away prototyping involves building a prototype to validate requirements and then discarding it. Rapid prototyping techniques discussed include using high-level languages, database programming, and component reuse. The benefits of prototyping include early validation of requirements and improved usability, while challenges include potential maintenance issues from continual changes.
Software process methodologies and a comparative study of various modelsiaemedu
This document provides a summary of different software process methodologies including the waterfall model, iterative model, extreme programming (XP), ISO standards, CMMI, Six Sigma, formal methods, and agile model. It compares these methods and discusses where each is best applied based on factors like project type, risk, and industry. The waterfall model is described as the traditional sequential approach while agile methods embrace adaptive planning and iterative development.
This document provides an introduction to software engineering. It discusses the key participants in software development including customers, users, developers, analysts, designers, programmers, testers and trainers. It also outlines common software development steps and roles. The document notes how factors like object technology, time to market pressures, and user interfaces have changed software engineering. It defines software engineering and compares it to computer science and systems engineering. Finally, it discusses software processes, costs, quality attributes, and challenges facing the field.
This document provides an overview of software engineering and its models. It discusses the evolution of software engineering from the 1960s to present day. It describes key software engineering concepts like the software development life cycle, capability maturity models, and various software development models including waterfall, iterative enhancement, prototyping, spiral, and RAD approaches. The document emphasizes that software engineering applies systematic and disciplined processes to software development in order to address challenges like increasing complexity, high costs, and quality issues.
This document provides an overview of software and software engineering. It defines software, discusses why software is important to modern economies, and outlines some key characteristics of software such as its non-physical nature and tendency to deteriorate over time rather than wear out. The document also introduces common software applications, categories, and costs. Finally, it discusses the importance of software engineering in developing reliable, high-quality software economically.
This document summarizes common software myths and realities. It discusses six myths: 1) that standards and procedures are enough to produce good programs, 2) that new hardware ensures good software, 3) that adding programmers to a late project finishes it on time, 4) that general objectives are enough to begin programming, 5) that software is flexible enough to handle continuous changes, and 6) that the job is done once a program works. For each, it provides the reality, such as that people don't always follow standards, tools are more important than hardware, adding people makes projects later, detailed requirements are needed upfront, changes are costly, and 50-70% of effort is post-delivery including documentation.
This document discusses key aspects of software and software engineering. It describes software's dual role as both a product that transforms information and a vehicle for delivering other products. It outlines different types of software applications and compares hardware and software. The document discusses challenges in software manufacturing versus development. It also summarizes several "laws" of software evolution and common software myths that can lead to bad decisions if believed.
Este documento describe cómo administrar una instancia de Oracle. Explica cómo crear y manejar archivos de parámetros de inicialización, configurar Oracle Managed Files, levantar y bajar una instancia, y monitorear archivos de diagnóstico. Detalla los diferentes tipos de archivos de parámetros, cómo crear y modificar un SPFILE, y cómo iniciar una base de datos en diferentes modos como montado, abierto o restringido.
Este documento describe los pasos para instalar Oracle 10g. Explica los requisitos del sistema, la arquitectura flexible óptima (OFA) para planificar la instalación, e instalar el software con el instalador universal de Oracle. Además, cubre temas como variables de entorno, chequeos previos e inventario.
Este documento describe conceptos clave sobre el uso de variables y constantes en bloques PL/SQL, incluyendo su declaración, tipos de datos, asignación de valores, alcance y consideraciones sobre errores. Se proveen ejemplos de declaraciones de variables, asignación de valores mediante sentencias SELECT e INSERT, y alcance de variables en bloques anidados.
Este documento describe los principales componentes de la arquitectura de Oracle, incluyendo la estructura de memoria (SGA y PGA) y la estructura física de archivos de la base de datos (archivos de control, datos y registro de transacciones). También explica cómo un usuario se conecta a una instancia Oracle y establece una sesión, y los procesos involucrados como el proceso de usuario y el proceso del servidor.
El documento presenta una introducción a Oracle Corporation. Explica brevemente la historia de Oracle desde su fundación en 1977 hasta las versiones más recientes. También describe las principales plataformas soportadas, características clave como Real Application Clusters y sitios web oficiales para obtener más información.
Este documento presenta una guía de repaso para la asignatura Sistemas de Información Empresarial. Incluye nueve ejercicios sobre PL/SQL en Oracle que abordan temas como crear procedimientos para insertar datos en tablas, actualizar información, crear funciones para obtener datos agregados y realizar consultas. El objetivo es practicar operaciones DML y DDL mediante procedimientos almacenados y funciones.
Este documento describe el proceso de desarrollo de software, incluyendo las tres fases principales de definición, desarrollo y mantenimiento. En la fase de definición, se identifican los requisitos del software. En la fase de desarrollo, se diseña e implementa el software. En la fase de mantenimiento, se realizan cambios como correcciones de errores o mejoras. El documento también discute factores que afectan la calidad y productividad del software, como el tamaño del proyecto, los recursos disponibles y los requ
Este documento presenta información sobre el rol y las responsabilidades de un administrador de bases de datos (DBA). Explica que un DBA se encarga de instalar, configurar y administrar una base de datos, incluyendo tareas como respaldar los datos, monitorear el rendimiento, aplicar parches de seguridad y más. También describe los diferentes tipos de DBA según su enfoque, como los DBA de desarrollo, soporte a producción y consultores. Resalta que ser DBA requiere conocimientos amplios de bases de datos, sistemas
El archivo de control es un pequeño archivo binario necesario para iniciar y operar una base de datos Oracle exitosamente. Contiene información como el nombre y ubicación de los archivos de datos y redo logs, información de tablespaces, y estado de la base de datos. Debe ser multiplexado almacenando copias en diferentes discos para prevenir fallas únicas. La información en el archivo de control puede ser consultada usando vistas como V$CONTROLFILE y V$PARAMETER.
This document summarizes key topics from Chapter 1 of Ian Sommerville's Software Engineering textbook, 7th edition. It introduces software engineering, explaining that it is concerned with theories, methods and tools for professional software development. It also addresses frequently asked questions about software engineering, including definitions of software, the software engineering process, costs of software engineering, and challenges in the field.
This document introduces software engineering and discusses its importance. It explains that software engineering is concerned with the systematic development of software and aims for cost-effective and reliable results. It addresses common questions about software, processes, methods and challenges. It emphasizes that software engineers have ethical responsibilities to act with integrity, protect intellectual property and not misuse systems.
The document introduces software engineering and discusses its importance. It explains that software engineering is concerned with the theories, methods and tools for professional software development. It also discusses key questions about software engineering, including what software engineering is, the differences between software engineering and computer science, the costs of software engineering, and professional and ethical responsibilities of software engineers.
This document summarizes key topics from the first chapter of Ian Sommerville's Software Engineering textbook, 7th edition. It introduces software engineering, explaining its importance and how economies depend on software. Software engineering aims to develop software using systematic methods and tools. The document discusses what software is, differences between software engineering and computer science, software processes and models, costs of software engineering, and professional responsibilities of software engineers.
This document summarizes key concepts from the first chapter of Ian Sommerville's Software Engineering textbook. It introduces software engineering as an engineering discipline concerned with all aspects of software production. It discusses the objectives of software engineering, topics covered like frequently asked questions and professional responsibility. It also summarizes concepts like the software development process, methods, costs and challenges in the field.
This document summarizes key points from Chapter 1 of Ian Sommerville's Software Engineering textbook. It introduces software engineering and explains that it is an engineering discipline concerned with all aspects of software production. It discusses professional responsibilities of software engineers and covers topics like what software is, differences between software engineering and computer science, software processes, costs of software engineering, and challenges facing the field. The document emphasizes that software engineers must consider ethical issues and stresses important concepts like reliability, maintainability, and usability of software.
This document provides an introduction to a software engineering course. It outlines the topics that will be covered, including software processes, requirements, design, coding, testing, and project management. It describes the learning objectives of explaining software engineering principles and techniques for developing quality software. Students will be assessed through exams, presentations, and laboratory work. References for further reading are also provided.
This document discusses software process models and activities. It introduces three generic process models: waterfall, evolutionary development, and component-based development. It also describes the Rational Unified Process model and the spiral model. The key activities discussed are requirements engineering, software design, implementation, validation, and evolution. Iterative development approaches like incremental delivery and extreme programming are also covered.
The document discusses key topics in software engineering including defining software engineering, its characteristics and applications. It addresses the software crisis and costs of software engineering. The document compares software engineering to computer science and system engineering. It also covers best practices, characteristics of good software engineers and challenges facing the field.
The document outlines a syllabus for a software engineering course. The syllabus covers 5 units: introduction to software engineering processes and models; agile software development and requirements engineering; system modeling; architectural design; and software testing. It also lists course objectives, outcomes, textbooks, and assessment methodologies. The key topics covered include software processes, agile development, requirements specification, system modeling, architectural design, object-oriented design, and software testing.
Ian Sommerville, Software Engineering, 9th Edition Ch1Mohammed Romi
The document provides an introduction to software engineering concepts. It discusses what software engineering is, the importance of ethics in software development, and introduces three case studies that will be used as examples throughout the book. Specifically:
[1] It defines software engineering as an engineering discipline concerned with all aspects of software production. Professional and ethical practices are important.
[2] It discusses software engineering ethics and introduces the ACM/IEEE code of ethics for software engineers.
[3] It provides an overview of three case studies that will be referenced in later chapters: an insulin pump system, a patient management system, and a weather station system.
This document discusses software engineering. It aims to introduce software engineering and provide a framework for understanding the course. It discusses objectives like understanding what software engineering is and why it is important. It also discusses factors for software failures like increasing demands and low expectations of software quality. The history of software engineering is discussed, noting the term was coined in 1968 to address the "software crisis" of unreliable, over budget software projects. New techniques were then developed throughout the 1970s-1980s to help address these issues.
This document provides an overview of software cost estimation. It discusses software productivity measures like lines of code and function points. It describes factors that affect productivity and different techniques for software estimation like algorithmic cost modeling, expert judgment, and analogy. It also explains the COCOMO model, an empirical cost estimation model, and its evolution from the initial COCOMO-81 to the current COCOMO 2 model, which can accommodate different development approaches.
Este documento describe los conceptos clave de los permisos de archivos en Linux, incluyendo: (1) cada archivo tiene un propietario de usuario, un grupo propietario y permisos; (2) hay tres tipos de permisos (lectura, escritura y ejecución) y tres clases de acceso (usuario, grupo y otros); y (3) los comandos chmod, chgrp y chown se pueden usar para modificar la propiedad y los permisos de los archivos. También proporciona ejemplos de cómo se aplican los permisos predetermin
Semana 9 standard io and pipes guia de ejercicios resueltavictdiazm
Este documento describe conceptos clave sobre entrada y salida estándar, error estándar y tuberías en sistemas Unix. Explica que la entrada estándar suele estar conectada al teclado, la salida estándar a la pantalla y el error estándar a la pantalla. También describe cómo redirigir estos flujos mediante operadores en la shell como >, >>, 2>, | y cómo examinar los archivos /proc/self/fd para ver a qué archivos están conectados los descriptores de archivo de un proceso. Incluye varias preguntas de opción
Semana 7 y 8 the linux filesystem guia de ejercicios resueltavictdiazm
El documento describe los conceptos clave de los archivos en Linux. Los archivos tienen atributos como propietario, grupo, permisos y tiempo que se almacenan en una estructura de datos llamada inodo. Los nombres de archivo se almacenan en estructuras de datos llamadas dentries. Los sistemas de archivos se montan en puntos de montaje y se pueden examinar con comandos como mount, umount y df.
Semana 4 y 5 la shell bash guia de ejercicios resueltavictdiazm
La shell bash es la shell predeterminada en Red Hat Enterprise Linux. Puede usarse de forma interactiva o para ejecutar scripts. Tras el arranque, bash ejecuta comandos en el archivo ~/.bashrc para personalizar la shell. Guarda el historial de comandos ejecutados que se pueden recuperar usando expansiones de historial.
Semana 2 y 3 file ownerships and permissions guia de ejercicios resueltavictdiazm
Este documento trata sobre propiedades de archivos y permisos. Explica que los archivos tienen un usuario propietario, grupo propietario y permisos de lectura, escritura y ejecución. Detalla los comandos chmod, chgrp y chown para modificar propiedades y permisos. Luego presenta varias preguntas sobre permisos de archivos específicos.
Semana 1 quick tours guia de ejercicios resueltavictdiazm
Este documento proporciona una introducción a Linux, incluyendo conceptos clave sobre inicio de sesión, consolas virtuales, el sistema de archivos y ejecución de comandos. Explica que los usuarios deben iniciar sesión para usar una máquina Linux, y pueden hacerlo a través de una interfaz gráfica o consola virtual. También describe los componentes clave de Linux como el kernel, programas, procesos y shell, y cómo se usan comandos como ls, cat y touch para navegar el sistema de archivos y actualizar archivos.
(1) Un proceso es una instancia de un programa en ejecución identificada por un ID de proceso. (2) Los procesos tienen diferentes estados como ejecutable, dormido voluntario o involuntario, detenido o zombi. (3) Los comandos ps y top pueden usarse para examinar y controlar los procesos actualmente en ejecución.
El documento proporciona una introducción a la shell bash en Linux. La shell bash es la shell predeterminada en Red Hat Enterprise Linux y puede usarse de forma interactiva o para escribir scripts. Mantiene un historial de comandos que permite recuperar y editar comandos anteriores. Los usuarios pueden personalizar su shell bash editando el archivo ~/.bashrc.
Este documento explica los conceptos básicos de propiedad de archivos y permisos en Linux. Cada archivo tiene un propietario de usuario, un grupo propietario y permisos que controlan el acceso. Los permisos incluyen lectura, escritura y ejecución para el propietario del archivo, el grupo propietario y otros. El comando chmod se usa para cambiar los permisos de un archivo. Por ejemplo, chmod o-r quita los permisos de lectura para otros, mientras que chmod o+r los restaura.
Este documento proporciona una introducción a Linux y conceptos clave relacionados con el inicio de sesión de usuarios, el kernel, programas y procesos, el sistema de archivos, y la ejecución de comandos. Explica que los usuarios deben iniciar sesión para usar una máquina Linux, y que pueden hacerlo a través de consolas virtuales o una interfaz gráfica. También describe que el kernel proporciona un entorno para la ejecución de procesos a partir de programas almacenados como archivos, y que las shells permit
El documento describe los diferentes métodos para iniciar sesión en Linux, incluyendo el uso de consolas virtuales, entornos gráficos como X Window y conexiones remotas a través de SSH. Explica que el kernel de Linux proporciona un entorno para la ejecución de procesos, los cuales son instancias en ejecución de programas almacenados en el sistema de archivos. También describe cómo ver los procesos activos usando el comando ps.
Este documento trata sobre los usuarios y grupos en Linux. Explica conceptos como usuarios, grupos, los archivos /etc/passwd y /etc/group que almacenan la información de usuarios y grupos respectivamente. También describe comandos como id, whoami, finger y su para examinar y cambiar la identidad de usuario.
Este documento presenta una introducción a las aplicaciones de redes en Linux. Cubre temas como impresión, correo electrónico, herramientas de diagnóstico de red, clientes FTP y SSH, así como conceptos clave sobre sockets TCP/IP, clientes/servidores, puertos y direcciones IP. También explica el sistema de impresión CUPS y cómo administrar trabajos de impresión, así como herramientas para ver y convertir documentos PostScript y PDF.
Este documento describe los conceptos básicos del sistema de archivos en Linux, incluyendo la estructura del árbol de directorios con la raíz "/", el directorio de trabajo actual, y los comandos para navegar (cd, pwd), administrar archivos (cp, mv, rm) y directorios (mkdir, rmdir). También explica directorios importantes como /home, /tmp, /etc, /bin y su propósito.
Este documento trata sobre la administración de procesos en Linux. Explica conceptos clave como que un proceso es una instancia de un programa en ejecución, los diferentes estados de un proceso, y herramientas como ps, top, nice y renice para monitorear y administrar procesos. También cubre temas como como se inician los procesos a través de bifurcación, los cinco estados posibles de un proceso, y cómo afectan el niceness y la prioridad la programación de procesos.
Semana 9 entradas salidas estandar y pipesvictdiazm
Este documento explica los conceptos de entrada y salida estándar, error estándar y tuberías en Linux. Describe cómo la entrada estándar (stdin) suele estar conectada al teclado y la salida estándar (stdout) a la pantalla. Explica cómo redirigir stdin, stdout y stderr a archivos y cómo conectar la salida de un programa a la entrada de otro usando tuberías.
Semana 8 herramientas de procesos de stringvictdiazm
Este documento describe varias herramientas de procesamiento de cadenas de texto en Linux, incluidas herramientas para contar palabras, buscar texto, ordenar datos, extraer y unir texto, rastrear diferencias, traducir texto y revisar ortografía. Explica el uso de comandos como wc, grep, sort, uniq, cut y paste para manipular cadenas de texto.
Este documento describe los sistemas de archivos en Linux. Explica que los archivos están compuestos de datos, metadatos e información de nombre almacenada en estructuras llamadas inodos y dentries respectivamente. También cubre temas como enlaces duros y blandos, directorios, nodos de dispositivo, formatos de sistemas de archivos, montaje de discos y permisos de acceso a dispositivos.
El documento explica los scripts de Bash, incluyendo su estructura, variables, comandos condicionales y otros elementos clave. Los scripts automatizan tareas mediante la ejecución secuencial de líneas de comandos y pueden incluir variables, entrada/salida, condicionales if/then/else y case/in/esac.
Linux es un sistema operativo multitarea porque permite ejecutar múltiples programas de forma simultánea en una sola CPU, ahorrando recursos. SSH permite acceder de forma remota y segura a otra máquina, mientras que ps-aux muestra detalles de procesos en ejecución y top muestra los procesos que más uso de CPU tienen. El directorio /home almacena los archivos de los usuarios y /etc contiene la configuración del sistema.