The document discusses how to evaluate ECAD software packages. It outlines several key aspects to evaluate: suitability for job requirements, compatibility with hardware, simulation capabilities, ease of use, and capabilities for project partitioning and hierarchical design. For simulation capabilities, students are advised to assess the range of simulations, resolution, speed, accuracy and stability. Ease of use is subjective but can be evaluated by having users record likes and dislikes. Testing networking capabilities with a team project is also recommended for evaluating design collaboration features. Thorough testing of the software is important to fully understand its strengths and limitations.
This document provides an overview of software engineering concepts covered in lecture notes. It discusses the software development life cycle (SDLC) which includes key stages like requirements gathering, design, coding, testing, integration and maintenance. The SDLC framework aims to develop software efficiently using a well-defined process. Software engineering principles like abstraction and decomposition are used to reduce complexity when developing large programs.
There are three main types of software:
1) System software which operates the computer hardware and provides basic functionality and a platform for other software. This includes operating systems, drivers, servers, and utilities.
2) Programming software which are tools used by developers to create, debug, and maintain other programs and applications, such as compilers, debuggers, and text editors.
3) Application software which allows users to perform specific tasks, such as web browsers, office suites, graphics software, and media players. Application software runs on top of system software and may use programming software during development.
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.
SWE-401 - 12. Software CASE Tools Overviewghayour abbas
CASE (Computer Aided Software Engineering) tools automate various stages of the Software Development Life Cycle (SDLC) and are used by software engineers, project managers, and analysts. There are different types of CASE tools that can be used for activities like documentation, project management, analysis, design, programming, testing, and maintenance. CASE tools provide benefits like accelerated development, reduced errors, and improved collaboration through features like centralized repositories and version control.
There is no single methodology or approach that can be universally applied to solve all software problems. While past advances like high-level programming languages and time-sharing helped address accidental difficulties, the essential challenges of software development remain. These include complexity, the need for conformity, frequent changes, and the invisible nature of software. Future hopes include improved programming languages, object-oriented programming, artificial intelligence, and iterative development approaches. However, the author argues the fundamental difficulties inherent in software's conceptual nature and complex, changeable requirements cannot be fully solved by any single "silver bullet."
No silver bullet essence and accidents of software engineeringArun Banotra
The document outlines Frederick Brooks' argument that there is no "silver bullet" that can solve all of software engineering's problems. It discusses the differences between essential difficulties, which are inherent to software due to its complexity, need for conformity, changeability, and invisibility, and accidental difficulties caused by current production methods. While breakthroughs have solved some accidental difficulties, like high-level programming languages, Brooks argues one breakthrough alone cannot provide an order-of-magnitude improvement due to software's essential properties.
SE2_Lec 19_Design Principles and Design PatternsAmr E. Mohamed
The document discusses software design patterns and principles. It defines what design patterns are, their benefits, and some commonly used patterns like Singleton, Observer, and Strategy. It also covers software design principles like the Single Responsibility Principle, Open-Closed Principle, Liskov Substitution Principle, and others. The document provides examples to illustrate how patterns and principles can be applied to improve software design.
The document provides an introduction to software engineering. It defines software and describes its key attributes and classifications. It discusses what constitutes good software in terms of maintainability, dependability, efficiency and usability. The document also outlines different types of software and defines software engineering as a systematic approach to software analysis, design, implementation and maintenance. It compares software engineering to computer science and system engineering. Finally, it discusses the two main components of software engineering as the systems engineering approach and development engineering approach.
This document provides an overview of software engineering concepts covered in lecture notes. It discusses the software development life cycle (SDLC) which includes key stages like requirements gathering, design, coding, testing, integration and maintenance. The SDLC framework aims to develop software efficiently using a well-defined process. Software engineering principles like abstraction and decomposition are used to reduce complexity when developing large programs.
There are three main types of software:
1) System software which operates the computer hardware and provides basic functionality and a platform for other software. This includes operating systems, drivers, servers, and utilities.
2) Programming software which are tools used by developers to create, debug, and maintain other programs and applications, such as compilers, debuggers, and text editors.
3) Application software which allows users to perform specific tasks, such as web browsers, office suites, graphics software, and media players. Application software runs on top of system software and may use programming software during development.
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.
SWE-401 - 12. Software CASE Tools Overviewghayour abbas
CASE (Computer Aided Software Engineering) tools automate various stages of the Software Development Life Cycle (SDLC) and are used by software engineers, project managers, and analysts. There are different types of CASE tools that can be used for activities like documentation, project management, analysis, design, programming, testing, and maintenance. CASE tools provide benefits like accelerated development, reduced errors, and improved collaboration through features like centralized repositories and version control.
There is no single methodology or approach that can be universally applied to solve all software problems. While past advances like high-level programming languages and time-sharing helped address accidental difficulties, the essential challenges of software development remain. These include complexity, the need for conformity, frequent changes, and the invisible nature of software. Future hopes include improved programming languages, object-oriented programming, artificial intelligence, and iterative development approaches. However, the author argues the fundamental difficulties inherent in software's conceptual nature and complex, changeable requirements cannot be fully solved by any single "silver bullet."
No silver bullet essence and accidents of software engineeringArun Banotra
The document outlines Frederick Brooks' argument that there is no "silver bullet" that can solve all of software engineering's problems. It discusses the differences between essential difficulties, which are inherent to software due to its complexity, need for conformity, changeability, and invisibility, and accidental difficulties caused by current production methods. While breakthroughs have solved some accidental difficulties, like high-level programming languages, Brooks argues one breakthrough alone cannot provide an order-of-magnitude improvement due to software's essential properties.
SE2_Lec 19_Design Principles and Design PatternsAmr E. Mohamed
The document discusses software design patterns and principles. It defines what design patterns are, their benefits, and some commonly used patterns like Singleton, Observer, and Strategy. It also covers software design principles like the Single Responsibility Principle, Open-Closed Principle, Liskov Substitution Principle, and others. The document provides examples to illustrate how patterns and principles can be applied to improve software design.
The document provides an introduction to software engineering. It defines software and describes its key attributes and classifications. It discusses what constitutes good software in terms of maintainability, dependability, efficiency and usability. The document also outlines different types of software and defines software engineering as a systematic approach to software analysis, design, implementation and maintenance. It compares software engineering to computer science and system engineering. Finally, it discusses the two main components of software engineering as the systems engineering approach and development engineering approach.
The document provides an overview of the Software Engineering course for the second semester of the second year (B.Tech IT/II Sem-II). It includes details about the term, text books, unit syllabus, index of topics, and slides covering introductions to software engineering, the changing nature of software, software myths, generic views of process, the Capability Maturity Model Integration and personal and team software processes.
This document provides an overview of software engineering concepts including what software and software engineering are, the software process and models, system engineering processes, and emergent system properties. It discusses the waterfall model, evolutionary development, and spiral development as software process models. The key stages of the system engineering process are defined as system requirement definition, system design, subsystem development, system integration, and system evolution. Non-functional properties like reliability, performance, safety and security are described as important emergent system properties.
SWE-401 - 1. Introduction to Software Engineeringghayour abbas
Software engineering is the application of engineering principles to the development of software. It involves systematic, disciplined, and quantifiable approaches to develop, operate, and maintain software. The goal of software engineering is to produce reliable and efficient software products. Some key aspects of software engineering include requirements gathering, design, programming, testing, and maintenance. Software engineering principles are important for developing large, complex software in a cost-effective manner that can scale and adapt to changing needs over time.
1) Frederick Brooks Jr. argues that while accidental difficulties in software engineering have been solved through advances like high-level programming languages, unified development environments, and time-sharing, essential difficulties like complexity, conformity, changeability, and invisibility are inherent to software and unlikely to see improvements of even an order of magnitude.
2) The essential difficulties arise from software's complexity, need to conform to standards, constant pressure for change, and invisibility/lack of visualization.
3) Promising approaches to the essential difficulties include requirements refinement, rapid prototyping, focusing on great designers, incremental development, and buying rather than building software when possible.
Software engineering principles in system software designTech_MX
This document discusses software engineering principles for system software design. It defines software engineering as a collection of techniques to produce high quality software on time and budget. Key principles discussed include rigor and formality, separation of concerns, modularity, abstraction, and anticipation of change. Examples of applying these principles to compilers and assemblers are provided. The software development process and different testing approaches are also summarized.
Software Engineering (Introduction to Software Engineering)ShudipPal
Software engineering is concerned with all aspects of software production. It aims to develop software using systematic and disciplined approaches to reduce errors and costs. Some key challenges in software development are its high cost, difficulty delivering on time, and producing low quality software. Software engineering methods strive to address these challenges and produce software with attributes like maintainability, dependability, efficiency, usability and acceptability.
The document discusses software project management and risk management. It identifies several types of risks that can affect software projects, including technology risks, people risks, organizational risks, and requirements risks. It also describes the key aspects of risk management: risk identification, analysis, planning, monitoring, and control. Effective risk management strategies include avoidance, minimization, and contingency planning to address risks that could impact a project's schedule, budget, or quality. Regular risk assessment is needed to determine if risks have increased or decreased over time.
Software development is the process of creating and maintaining software applications and components. It involves conceiving ideas, specifying requirements, designing, programming, testing, and fixing bugs. The software can be developed for a variety of purposes like custom software for clients, commercial software, or personal use. Different methodologies take structured or incremental approaches to the stages of software development which typically include analyzing problems, gathering requirements, designing, implementing, testing, deploying, and maintaining the software. The best approach depends on how well understood the problem is and whether the solution can be planned out in advance or needs to evolve incrementally.
This document discusses round trip engineering. Round trip engineering synchronizes related software artifacts like source code and models so that changes made to one artifact are reflected in the others. It combines forward engineering, which creates software from specifications, and reverse engineering, which creates specifications from existing software. Round trip engineering allows moving between requirements, analysis, design, and implementation, and synchronizing changes made at any phase. Tools like Rational Rose support round trip engineering by automatically updating artifacts when inconsistencies are detected.
Software System Engineering - Chapter 1Fadhil Ismail
This document introduces software engineering and discusses some key concepts. It defines software engineering as a systematic approach to software development, operation, and maintenance. The goal of software engineering is to produce high-quality software products through defined processes. However, software development faces challenges like inability to build programs fast enough to meet demand. The document also discusses common misconceptions around software, such as the belief that more programmers can catch up on a late project. It identifies poorly defined requirements as a major cause of failed software projects. Finally, it notes problems like lack of data collection and customer dissatisfaction that demonstrate the need for a systematic approach like software engineering.
This document provides an introduction to software engineering. It defines software as computer programs, documentation, and data structures. Software can be generic, developed for a general market, or bespoke (custom), developed for a single customer. The document also discusses what software engineering is, the difference between software engineering and computer science, the costs of software engineering, software engineering methods, CASE tools, attributes of good software, types of software applications, and characteristics of web applications.
Software Engineering- Crisis and Process ModelsNishu Rastogi
The document discusses various software engineering process models including the waterfall model, iterative waterfall model, prototyping model, evolutionary model, rapid application development model, and spiral model. It provides details on the key activities and stages in each model's software development life cycle. The document also compares the different models and discusses when each may be best applied based on factors like the problem's understandability, decomposability into modules, and tolerance for incremental delivery.
This document outlines the information and requirements for a Software Engineering 1 course. It provides details on the course name, instructor, lecture and lab times, required and recommended textbooks. Assessment will include a midterm exam, final exam, homework assignments, and a project. The course will cover topics such as the software lifecycle, requirements analysis, system modeling, agile development, and project management. 80% attendance is required to pass.
Software engineering involves developing software using systematic processes to produce products that meet requirements and quality standards. A software engineer must adopt organized approaches using appropriate tools and techniques for problem solving. Software has unique characteristics compared to other products, as it is intangible, malleable, and complex. Several lifecycle models exist for planning software development projects, including waterfall, iterative, and agile approaches. Software qualities like correctness, reliability, usability, and maintainability are important to consider throughout the development process.
This document provides information about the "Software Engineering & Information System Design" course at East West University. It includes:
- Details about the course instructor Tanni Mittra and their background.
- Information about the course such as the class webpage, textbooks used, lecture times, and marking distribution.
- The objectives of the course which are to understand software engineering principles and acquire both technical and managerial knowledge.
- An overview of the topics that will be covered in the first chapter on introductions to software, software engineering, and ethics.
Use case modeling and analysis involves identifying actors, use cases, and system boundaries. Actors are entities that interact with the system, such as people, hardware, devices, or other systems. Primary actors are completely outside the system while secondary actors are more inside. Use cases describe system functionality and interactions from a user perspective. Relationships like include, extend, and generalization help structure use cases. Include is used when use cases share common portions, extend specifies additional behavior, and generalization allows inheritance. Identifying actors, use cases, relationships, and boundaries aids in discovering requirements, communicating with stakeholders, and generating test cases.
Ecd302 unit 03 (part a)(ewb quick reference)Xi Qiu
This document describes the user interface and components available in Electronics Workbench (EWB). It outlines the menus, toolbar, circuit window, and status line. It provides details on the types of sources, basic components, diodes, transistors, integrated circuits, logic gates, digital components, indicators, controls, miscellaneous items, and instruments that can be used in EWB circuits. It also lists some useful analysis features in EWB like DC operating point analysis, AC small-signal analysis, and noise analysis.
Ecd302 unit 06(tests and trobule shooting tools)Xi Qiu
The document discusses various analysis tools in MultiSIM including parameter sweep analysis and Monte Carlo analysis. Parameter sweep analysis allows the user to vary a component parameter over a range to see its effect on circuit output. Monte Carlo analysis randomly varies component parameters according to a probability distribution to simulate real-world tolerance effects across many trials. An example uses Monte Carlo analysis on a common-emitter amplifier to show that even with a 20% tolerance on transistor beta, the circuit output remains stable.
The document provides an overview of the Software Engineering course for the second semester of the second year (B.Tech IT/II Sem-II). It includes details about the term, text books, unit syllabus, index of topics, and slides covering introductions to software engineering, the changing nature of software, software myths, generic views of process, the Capability Maturity Model Integration and personal and team software processes.
This document provides an overview of software engineering concepts including what software and software engineering are, the software process and models, system engineering processes, and emergent system properties. It discusses the waterfall model, evolutionary development, and spiral development as software process models. The key stages of the system engineering process are defined as system requirement definition, system design, subsystem development, system integration, and system evolution. Non-functional properties like reliability, performance, safety and security are described as important emergent system properties.
SWE-401 - 1. Introduction to Software Engineeringghayour abbas
Software engineering is the application of engineering principles to the development of software. It involves systematic, disciplined, and quantifiable approaches to develop, operate, and maintain software. The goal of software engineering is to produce reliable and efficient software products. Some key aspects of software engineering include requirements gathering, design, programming, testing, and maintenance. Software engineering principles are important for developing large, complex software in a cost-effective manner that can scale and adapt to changing needs over time.
1) Frederick Brooks Jr. argues that while accidental difficulties in software engineering have been solved through advances like high-level programming languages, unified development environments, and time-sharing, essential difficulties like complexity, conformity, changeability, and invisibility are inherent to software and unlikely to see improvements of even an order of magnitude.
2) The essential difficulties arise from software's complexity, need to conform to standards, constant pressure for change, and invisibility/lack of visualization.
3) Promising approaches to the essential difficulties include requirements refinement, rapid prototyping, focusing on great designers, incremental development, and buying rather than building software when possible.
Software engineering principles in system software designTech_MX
This document discusses software engineering principles for system software design. It defines software engineering as a collection of techniques to produce high quality software on time and budget. Key principles discussed include rigor and formality, separation of concerns, modularity, abstraction, and anticipation of change. Examples of applying these principles to compilers and assemblers are provided. The software development process and different testing approaches are also summarized.
Software Engineering (Introduction to Software Engineering)ShudipPal
Software engineering is concerned with all aspects of software production. It aims to develop software using systematic and disciplined approaches to reduce errors and costs. Some key challenges in software development are its high cost, difficulty delivering on time, and producing low quality software. Software engineering methods strive to address these challenges and produce software with attributes like maintainability, dependability, efficiency, usability and acceptability.
The document discusses software project management and risk management. It identifies several types of risks that can affect software projects, including technology risks, people risks, organizational risks, and requirements risks. It also describes the key aspects of risk management: risk identification, analysis, planning, monitoring, and control. Effective risk management strategies include avoidance, minimization, and contingency planning to address risks that could impact a project's schedule, budget, or quality. Regular risk assessment is needed to determine if risks have increased or decreased over time.
Software development is the process of creating and maintaining software applications and components. It involves conceiving ideas, specifying requirements, designing, programming, testing, and fixing bugs. The software can be developed for a variety of purposes like custom software for clients, commercial software, or personal use. Different methodologies take structured or incremental approaches to the stages of software development which typically include analyzing problems, gathering requirements, designing, implementing, testing, deploying, and maintaining the software. The best approach depends on how well understood the problem is and whether the solution can be planned out in advance or needs to evolve incrementally.
This document discusses round trip engineering. Round trip engineering synchronizes related software artifacts like source code and models so that changes made to one artifact are reflected in the others. It combines forward engineering, which creates software from specifications, and reverse engineering, which creates specifications from existing software. Round trip engineering allows moving between requirements, analysis, design, and implementation, and synchronizing changes made at any phase. Tools like Rational Rose support round trip engineering by automatically updating artifacts when inconsistencies are detected.
Software System Engineering - Chapter 1Fadhil Ismail
This document introduces software engineering and discusses some key concepts. It defines software engineering as a systematic approach to software development, operation, and maintenance. The goal of software engineering is to produce high-quality software products through defined processes. However, software development faces challenges like inability to build programs fast enough to meet demand. The document also discusses common misconceptions around software, such as the belief that more programmers can catch up on a late project. It identifies poorly defined requirements as a major cause of failed software projects. Finally, it notes problems like lack of data collection and customer dissatisfaction that demonstrate the need for a systematic approach like software engineering.
This document provides an introduction to software engineering. It defines software as computer programs, documentation, and data structures. Software can be generic, developed for a general market, or bespoke (custom), developed for a single customer. The document also discusses what software engineering is, the difference between software engineering and computer science, the costs of software engineering, software engineering methods, CASE tools, attributes of good software, types of software applications, and characteristics of web applications.
Software Engineering- Crisis and Process ModelsNishu Rastogi
The document discusses various software engineering process models including the waterfall model, iterative waterfall model, prototyping model, evolutionary model, rapid application development model, and spiral model. It provides details on the key activities and stages in each model's software development life cycle. The document also compares the different models and discusses when each may be best applied based on factors like the problem's understandability, decomposability into modules, and tolerance for incremental delivery.
This document outlines the information and requirements for a Software Engineering 1 course. It provides details on the course name, instructor, lecture and lab times, required and recommended textbooks. Assessment will include a midterm exam, final exam, homework assignments, and a project. The course will cover topics such as the software lifecycle, requirements analysis, system modeling, agile development, and project management. 80% attendance is required to pass.
Software engineering involves developing software using systematic processes to produce products that meet requirements and quality standards. A software engineer must adopt organized approaches using appropriate tools and techniques for problem solving. Software has unique characteristics compared to other products, as it is intangible, malleable, and complex. Several lifecycle models exist for planning software development projects, including waterfall, iterative, and agile approaches. Software qualities like correctness, reliability, usability, and maintainability are important to consider throughout the development process.
This document provides information about the "Software Engineering & Information System Design" course at East West University. It includes:
- Details about the course instructor Tanni Mittra and their background.
- Information about the course such as the class webpage, textbooks used, lecture times, and marking distribution.
- The objectives of the course which are to understand software engineering principles and acquire both technical and managerial knowledge.
- An overview of the topics that will be covered in the first chapter on introductions to software, software engineering, and ethics.
Use case modeling and analysis involves identifying actors, use cases, and system boundaries. Actors are entities that interact with the system, such as people, hardware, devices, or other systems. Primary actors are completely outside the system while secondary actors are more inside. Use cases describe system functionality and interactions from a user perspective. Relationships like include, extend, and generalization help structure use cases. Include is used when use cases share common portions, extend specifies additional behavior, and generalization allows inheritance. Identifying actors, use cases, relationships, and boundaries aids in discovering requirements, communicating with stakeholders, and generating test cases.
Ecd302 unit 03 (part a)(ewb quick reference)Xi Qiu
This document describes the user interface and components available in Electronics Workbench (EWB). It outlines the menus, toolbar, circuit window, and status line. It provides details on the types of sources, basic components, diodes, transistors, integrated circuits, logic gates, digital components, indicators, controls, miscellaneous items, and instruments that can be used in EWB circuits. It also lists some useful analysis features in EWB like DC operating point analysis, AC small-signal analysis, and noise analysis.
Ecd302 unit 06(tests and trobule shooting tools)Xi Qiu
The document discusses various analysis tools in MultiSIM including parameter sweep analysis and Monte Carlo analysis. Parameter sweep analysis allows the user to vary a component parameter over a range to see its effect on circuit output. Monte Carlo analysis randomly varies component parameters according to a probability distribution to simulate real-world tolerance effects across many trials. An example uses Monte Carlo analysis on a common-emitter amplifier to show that even with a 20% tolerance on transistor beta, the circuit output remains stable.
This document provides an overview of various analysis tools available in EWB software for circuit simulation and analysis. It describes the following analysis types: DC operating point analysis, AC frequency analysis, transient analysis, Fourier analysis, noise analysis, distortion analysis, DC sweep analysis, sensitivity analysis, parameter sweep analysis, temperature sweep analysis, transfer function analysis, worst case analysis, pole zero analysis, and Monte Carlo analysis. For each analysis type, it provides a brief description of the analysis and an example circuit to demonstrate how to set up and interpret the results of that analysis.
Ecd302 unit 03 (part b)(instrument)(backup)(obsolete)Xi Qiu
EWB Instruments provides various virtual instruments for circuit design and analysis including a multimeter, function generator, oscilloscope, Bode plotter, frequency counter, logic analyzer, and logic converter. These instruments allow users to measure voltage, current, resistance, frequency, and analyze logic circuits through truth tables and Boolean expressions.
Ecd302 unit 05(misc simulation tools)(new version)Xi Qiu
This document describes various simulation tools available in ECD302 including the 555 timer wizard, filter wizard, CE BJT amplifier wizard, component tolerance settings, creating sub-circuits, and post-processing tools. The 555 timer and filter wizards allow designing oscillator and filter circuits by entering specifications. The CE BJT amplifier wizard designs common emitter amplifiers. Component tolerance can be enabled or disabled. Sub-circuits help organize large designs. Post-processing derives new results from simulation data using formulas. An example calculates instantaneous power from measured voltage.
The document describes various electronics instruments available in Electronics Workbench (EWB), including a multimeter, function generator, oscilloscope, Bode plotter, frequency counter, logic analyzer, and logic converter. The multimeter measures voltage, current, resistance, and power in AC or DC circuits. The function generator outputs sine, triangular, or square waves. The oscilloscope displays signal magnitudes and frequencies over time. The Bode plotter graphs frequency responses. The frequency counter measures signal frequencies. The logic analyzer displays digital signals, and the logic converter performs logic operations and conversions.
The document describes several applications of voltage-to-frequency and frequency-to-voltage converters including: ratiometric measurement using two V/F converters, RPM/speed indication using an F/V converter, motor speed control using feedback from an F/V converter, proportional flow control using an F/V converter, temperature measurement using a V/F converter, analog to digital conversion with a microcontroller using a V/F converter, a 13-bit analog to digital converter using a V/F converter and counter, a 4-digit voltmeter with optoisolated input using a V/F converter and frequency counter, and a long-term integrator with infinite hold using a digital counter.
This document provides an overview of computer aided design (CAD) and circuit simulation. It begins with warnings for the class and then defines CAD as using computers to model physical systems and design variants for manufacturing. It lists several CAD software programs and describes different types of circuit simulations, such as DC analysis and transient analysis. The document outlines the design and simulation process and discusses netlists, elements like sources and passive/active devices, and why simulation is important for verification.
The customer will typically be required to provide or choose a billing address, a mailing address, a delivery option, and payment details like a credit card number. As soon as the order is placed, a customer notification email is delivered.
The document discusses electronic computer-aided design (ECAD) systems. It describes the expectations of learning outcomes related to ECAD, types of ECAD tools for different industries, and categories of ECAD tools according to the design process. It also discusses important features of ECAD systems like schematic capture, simulation, layout design, and verification tools. When choosing an ECAD system, factors to consider include the system requirements, ease of use, component library, available tools, simulation efficiency, and import/export capabilities. The document provides examples of ECAD tools on the market and concludes with critical areas to evaluate for different ECAD systems.
This document provides an overview of key concepts from the textbook "Software Engineering: A Practitioner's Approach" by Roger S. Pressman. It discusses software's dual role as both a product that transforms information and a vehicle for delivering computing potential. It also covers the differences between software and hardware, the evolution of software engineering as a discipline, common software engineering phases like definition, development and support, myths that can affect managers, customers and practitioners, and more. The document presents high-level information on fundamental software engineering topics in a structured manner.
The document discusses best practices for writing a software requirements specification (SRS). It emphasizes that a well-written SRS establishes agreement between customers and developers on required functionality, reduces development effort by surfacing issues early, and provides a baseline for validation and verification. The SRS should address functionality, interfaces, performance, attributes, and design constraints according to IEEE standards, and characteristics include being correct, unambiguous, complete, consistent, ranked, verifiable, modifiable, and traceable. While documentation takes time, the document argues it pays off through improved development and outcomes.
Secrets of going codeless - How to build enterprise apps without codingNewton Day Uploads
The document discusses methods for building enterprise applications without coding, known as codeless development or CAAD (Computer Aided Applications Development). It describes how CAAD uses pre-built components and templates to create applications through a point-and-click interface, removing the need for extensive programming. The methodology involves four phases - plan, develop, release, and review. Key aspects of the CAAD process include defining the application purpose and requirements, prototyping the design, user testing iterations, and ongoing maintenance after release. Site constructs provide predefined user interface elements to help bridge communication gaps between technical and non-technical users.
Software design is the process of planning the structure and interfaces of a software program to ensure it functions properly and meets requirements. It includes architectural design to break the program into components and detailed design to break components into classes and interfaces. Software design patterns provide reusable solutions to common problems in design. The most important patterns include adapter, factory method, state, builder, strategy, observer, and singleton. The software design process involves research, prototyping, development, testing, and maintenance.
This document provides an overview of software engineering and related topics covered in multiple units. Unit 1 discusses the nature of software, web applications, software engineering, software processes, agile development, and process models. It defines software and discusses its unique characteristics compared to hardware. Unit 1 also covers topics like legacy software, agile development principles, and generic and specialized software process models. Subsequent units cover requirements engineering, software design, user interface design, software testing, and other software engineering principles and practices.
This document provides an overview of software engineering and related topics covered in multiple units. Unit 1 discusses the nature of software, web applications, software engineering, software processes, agile development, and process models. It defines software and discusses its unique characteristics compared to hardware. Unit 1 also covers topics like legacy software, agile development principles, and generic and specialized software process models. Subsequent units cover requirements engineering, software design, user interface design, software testing, and other software engineering topics.
The document provides an overview of a feasibility study for a software engineering project. It discusses the technical, economic, and operational feasibility aspects that should be analyzed. The technical feasibility section examines the system requirements and configuration. The economic feasibility section describes cost-benefit analysis to determine if the benefits outweigh the costs. The operational feasibility section considers the organizational impacts and changes, including changes to skills needed and staffing requirements.
This document describes a project to develop a graphical user interface (GUI) tool for Oracle installation. It discusses the objectives of creating a GUI tool, which would be more user-friendly than a command line interface. It provides an introduction to the hardware and software specifications for the system. It also provides an overview of the programming language Java that will be used to develop the tool, including Java's goals, versions, platforms, implementations, and performance. The document outlines the system analysis, design, and testing approach that will be taken for the project.
Jun 08 - PMWT Featured Paper -Tarabykin - XP PAPER - FINALAlex Tarra
This document discusses the principles and practices of Extreme Programming (XP), an agile software development methodology. It describes XP's emphasis on communication, rapid feedback cycles, incremental changes, and automated testing. The document outlines specific XP practices related to planning, designing, testing, and coding software. It also addresses criticisms of XP and compares it to traditional waterfall development methods. Overall, the document provides an overview of XP and argues that its lightweight approach can enable better results for rapid development projects compared to lack of methodology or strict waterfall practices.
The document discusses feasibility analysis for information systems projects. It defines feasibility as a measure of how practical and beneficial a system will be. There are four main tests for feasibility: operational, technical, schedule and economic. Operational feasibility considers how well a solution will work and be accepted. Technical feasibility assesses the practicality of the technical solution. Schedule feasibility evaluates the project timeline. Economic feasibility is a cost-benefit analysis. The document provides examples of assessing candidate systems using a candidate systems matrix and feasibility analysis matrix to evaluate and rank different options based on the feasibility criteria.
Test-Driven Developments are Inefficient; Behavior-Driven Developments are a ...Abdelkrim Boujraf
In summary, we have presented here a method for efficiently testing large parts of web-based software by using elements of code generation to generate automatable tests, and by using BDD concepts to model tests for non-generated screens and non-generated business actions. Further, we have described a method for context-based unit
testing that, when combined with generated code and tests, yields an acceptable trade-off between development efficiency and time spent on testing
The document discusses software engineering and process models. It defines software engineering as the application of systematic and quantifiable approaches to software development, operation and maintenance. It describes software as computer programs, data structures and documentation.
It then discusses characteristics of software such as it being engineered not manufactured, not wearing out over time, and continuing to be custom built in most cases. It also discusses the software engineering layers including the process, method and tools layers.
Finally, it discusses the software process as a framework involving key activities like communication, planning, modeling, construction and deployment. It explains the generic process model and how activities are populated by actions and tasks to produce work products.
The document discusses Computer Aided Software Engineering (CASE) tools. It defines CASE as the use of software tools to assist in software development and maintenance. It outlines that CASE tools can help improve quality, maintenance and project management. The document then describes different types of CASE tools, including diagramming, process modeling, project management, documentation, analysis, design, configuration management, programming, prototyping and quality assurance tools. It concludes that CASE tools can increase productivity, decrease costs and enhance product quality when used appropriately.
Periodic Table of Agile Principles and PracticesJérôme Kehrli
Recently I fell by chance on the Periodic Table of the Elements... Long time no see... Remembering my physics lessons in University, I always loved that table. I remembered spending hours understanding the layout and admiring the beauty of its natural simplicity.
So I had the idea of trying the same layout, not the same approach since both are not comparable, really only the same layout for Agile Principles and Practices.
The result is in this presentation: The Periodic Table of Agile Principles and Practices:
- Manoj Kumar has 5 years of experience as a software professional specializing in data warehousing and ETL development using Informatica and Oracle database.
- He has experience designing and implementing complex ETL mappings including Slowly Changing Dimensions types 2 and 3.
- Manoj seeks new opportunities as an ETL developer where he can utilize his skills in Informatica, Oracle, shell scripting and more.
1. The document describes an automatic graphical design generator system that takes a program file as input and generates a graphical design of the program without requiring the user to have knowledge of the program.
2. It aims to reduce the time and effort required to manually create graphical designs by dragging and dropping symbols. The proposed system can generate designs for programs written in languages like Java as long as the program is logically and syntactically correct.
3. Graphical designs provide an easy way to understand complex programs for students and software testers. The automatic generation of designs from code can also assist with reverse engineering programs where the code is available but a design is needed.
Similar to Ecd302 unit 02(evaluate software packages) (20)
2. Expectation after studying this outcome?
Student able to evaluate ECAD software packages
and report on their performances
Student able to interpret manufacturers’ user
instructions to set up correct working
environment.
Student able to perform exercises to assess the
performance of ECAD software packages
Student able to evaluate and report the results of
exercises
3. What to look out for?
Some major aspects of ECAD software package to
evaluate:
Suitability to the job requirement (pg 2-3)
Compatibility to your hardware (pg 2-4)
Capabilities of simulations (pg 2-6)
Ease of use (pg 2-6) & (further discussion on pg 2-14)
Project partitioning and organization, and hierarchical
design capability (pg 2-7)
4. Suitability to the job requirement (pg 2-3)
Does the software package come with enough
features to cover all the most essential operations
of your job?
So, the first thing to consider is of course the
category of software.
As had been briefly discussed in the previous
outcome, we have 4 major groups of software:
ASIC and IC design tools
PLD and FPGA design tools
Board-level schematic design tools
PCB design tools
5. Suitability to the job requirement (pg 2-3)
To state the most obvious, for example, Multisim
is a board-level schematic design tool, so, if you
work for a firm that designs ASIC, Multisim is of
no use to you.
And to state the less obvious, sometimes certain
software comes packed with more than one
function.
For example, board-level schematic design tools
often come packed with PCB design tools as well.
And while one company may be strong in
producing software for the board-level schematic
design tool, its PCB design tools may not be as
good.
6. Suitability to the job requirement (pg 2-3)
So, you will have to put it to the scale yourself:
Does your job requirements lean towards
schematic design and simulation and
troubleshooting, or more towards PCB layout?
If your job mainly involves PCB layout re-routing,
a software that has the best schematic simulation
features but has a difficult-to-use PCB layout tool
would be but a white elephant to you.
7. Compatibility to your hardware (pg 2-4)
Does the software run on your PC/network
platform?
Can the software be incorporated seamlessly into
your PC/network?
Is the minimum hardware requirement within the
budget of your project?
If you run the software at its minimum hardware
requirement (if applicable), does the operation
suffer any undesirable effects?
8. Compatibility to your hardware (pg 2-4)
The next biggest disaster to buying software of the
wrong category is getting a software that does not run
on your PC platform.
As a discredit to Microsoft, most of the best ECAD
software were developed for UNIX.
To put it mildly, one is considered more stable that
the other.
And Linux, although fast catching on in the market
share, is still in the process of convincing existing big
names in ECAD software developers to spend valuable
resources developing ECAD software for Linux
platform. So, do not mistakenly get the wrong
software for your platform.
9. Compatibility to your hardware (pg 2-5)
The obvious mistake aside, sometimes it is not
totally implausible to switch YOUR PC/network
platform to suit the ECAD system that you think
best suits your job requirement.
The first and foremost consideration is of course
the budget and ROI (Return Of Investment)
consideration.
Then in certain offices, people might want to
continue using things like office tools.
To put it simply, calculate the ROI, and get some
opinion polls.
10. Compatibility to your hardware (pg 2-5)
Then there is the question of whether your
hardware could support the software.
Some evaluation needs to be done to assess the
speed of simulation when the ECAD software runs
on your PC/network.
Merely able to operate the ECAD is often not good
enough.
Especially when your design gets big and multi-
leveled and complex, you must make sure your
PC/network has enough “brawn” to handle the
simulations. And needless to say, stability must
come alongside with speed.
11. Compatibility to your hardware (pg 2-5)
The most cursed thing to happen is to have the
PC hanging or power failure in the middle of an
important simulation.
So, you must also ensure hardware resilience and
stability, and also ensure the stability of power
supply.
Network backup is also very crucial to ensure that
you do not lose any important files due to human
error or hardware failure or virus attack.
12. Capabilities of simulation (pg 2-6)
First off, you would like a wide range of
simulation capabilities then, beyond that, merely
having the right features is not enough; those
features should work with a desirable speed and
performance level.
You should test the simulation capabilities of the
software packages using benchmark circuits or
designs to measure the performance in terms of
accuracy of results and speed of processing.
13. Capabilities of simulation (pg 2-6)
Areas to look out for includes the range of
features, the range of simulation, resolution of
simulation, speed, accuracy and stability of the
various simulations.
This will be further discussed with more examples
in page 2-9.
14. Ease of use (pg 2-6)
As you are evaluating and using the software
package, pause from time to time to record what
you feel about the user-friendliness of the user
interface.
If the software easy to control?
Is the component library easy to access?
Are the simulations and tests easy to setup?
Are the test results easy to access and provides
you with enough information at a glance?
Does any of its features make it easy for you to
create and manipulate large and complex
designs?
15. Ease of use (pg 2-6)
Ease of use is a very subjective thing, and yet, you
cannot discount its importance just because of its
subjectivity.
And really, because of its subjectivity, there is no
absoluteness when it comes to judging whether an
ECAD software is easy to use, or, is user-friendly.
As proof of the unpredictable subjectivity of the
question of ease-of-use, I know of a left-handed
friend who simply refuses to change his mouse-
configuration into left-handed mouse, for the reason
that he was so used to using a right-handed mouse, a
left-handed mouse would hinder him more than
helping him.
16. Ease of use (pg 2-6)
Hence, it is very important for the potential users
themselves to sit down with certain evaluation
forms and make a record of what they like and
dislike about the software, and at the end of the
day, see whether the likes outweigh the dislikes.
17. Project partitioning and organization, and
hierarchical design capability (pg 2-3)
How easy are they to use?
How seamlessly can different hierarchical levels
be integrated during simulated tests?
If you work in team, how well does the software
network and keep track of the design changes
going on over the network of designers?
18. Project partitioning and organization, and
hierarchical design capability (pg 2-3)
How good is the networking capability of the ECAD
software you are evaluating?
The only way to evaluate this is to have a team sit down
around the network and rehearse out a known-working
project, and have them comment on the following
aspects:
Is any changes by one member in the team
immediately and accurately reflected on the
workspace of the other members?
How are conflicting actions resolved?
How easy is it to trace the performed actions and
tasks?
Does the software accurately log all actions for future
tracing?
19. Project partitioning and organization, and
hierarchical design capability (pg 2-3)
How easy is it to view various partitions of the project,
especially those of the other members in the team?
Is there an easy, integrated way to communicate
effectively with member on the team?
How easy is it for the team members to access any part
of the overall design hierarchy, and how is the
accessibility controlled?
Is the accessibility control bogging down any one in the
team?
Or, if the accessibility control is a bit loose, does it
compromise design integrity or threatens to jeopardize
the safe-guarding of individual work?
20. Conclusion (pg 2-8)
Oftentimes, satisfaction is a very subjective thing.
So, other than relying on factual evaluations such
as the 5 aspects discussed above, it would also
help tremendously to have the users of the ECAD
software rehearse known-working projects on the
software and comment on the more intangible
things such as whether they are comfortable with
the various control interfaces, the software layout
(even the colors!!), the way results were logged
and reported, etc., etc.
21. Conclusion (pg 2-8)
And then there is also the after-sale support and
possibility of customization.
Big names mean nothing if they cannot stoop to
carry out customizations for lesser-scale
businesses.
So, sometimes a good after-sale support and
customization could cover for certain short-
coming in terms of features.
Do not forget to take this into consideration as
well.
22. Further Discussion on Simulation
Capability
Generally speaking, we should look at the following:
Range of simulation capabilities (pg 2-9)
Range of simulation (pg 2-11)
Resolution of simulation (pg 2-11)
Speed of simulation (pg 2-11)
Accuracy of simulation (???)
Stability of simulation (pg 2-13)
23. Range of simulation capabilities (pg 2-9)
Some of the most common simulations performed by an
ECAD system include:
DC analysis
AC analysis
Transient analysis
Fourier analysis
Noise analysis
Distortion analysis
Sensitivity
DC sweep
Parameter sweep
Temperature sweep
Poles and Zeros analysis
Transfer function
Worst case analysis
Monte Carlo analysis
24. Range of simulation capabilities (pg 2-9)
Most ECAD software also comes with simulated
instruments such as:
Multimeter
Oscilloscope
Function generator
Bode plotter
Logic analyzer
Logic converter
Wattmeter
Distortion analyzer
Spectrum analyzer
Word generator
25. Range of simulation capabilities (pg 2-9)
Is more the merrier? Not always.
It again boils down to what kind of work do you
do most.
And sometimes, you may even need to consider
the individual performance of each analysis and
instruments.
In the daily work of your position, what analysis
or instrument would normally be used the most
frequent?
These are the analyses or instruments you have
to pay extra attention to when evaluating.
Test them rigorously.
26. Range of simulation (pg 2-11)
This refers to the maximum range of the
frequency span, or the time span it is able to log
without adverse effect towards the processing
speed or the stability of the simulation.
To put it simply, if you are involved in designing
circuits that operate in the RF and microwave
region, this is a big concern, as not all software
may simulate to that region, or may not be as
fast or accurate.
27. Resolution of simulation (pg 2-11)
For example, when doing transient analysis, what
is the maximum time resolution an ECAD
software could achieve, or could perform with
satisfactory speed?
You would take this into serious consideration if
your works require you to pay attention to minute
voltage spikes in the design or if your works are
constrained by stringent requirement on the rise-
time, fall-time, propagation delay, etc.
28. Resolution of simulation (pg 2-11)
Another area of resolution is the component
values. To what accuracy can you set the
component values?
Or the voltage and current reading resolutions; to
what resolution is the simulation performed?
Does it fulfill your job requirement?
29. Speed of simulation (pg 2-11)
At what ratio is the simulation time to real-time?
And if any simulation is required to run in real-
time, how much does it compromise the accuracy
of the simulation?
Sometimes, simple tests could tell you quite a lot.
30. For example, the following charts show the relationship
between component counts (with various passive-to-active-
component-ratio) and the simulation-time-to-real-time-ratio,
of the Multisim software, run on a platform of Microsoft NT
with a 500MHz processor and a RAM capacity of 128MB:
Simulation Speed
0
200
400
600
800
1000
0 10 20 30 40
Component count
Simulation-to-Realtime
ratio
1:3 to 1:4
3:4 to 3:5
Active-to-Passive
component ratio
You could see from the chart that when the active-to-passive component
ratio is low (between 1:3 to 1:4), the increase in component count does
not affect much the simulation-to-real time ratio (staying around 1
simulation second to every 200 real seconds). But when the active-to-
passive component ratio is high (between 3:4 to 3:5), the amount of
simulation required for the active components starts to take its toll, in
effectual slowing the simulation rate at an exponential incline.
31. Stability of simulation (pg 2-13)
And sometimes, when speed is not possible, we
would at least require stability.
If we must run a simulation or test-run over-
night, we would not want the simulation to suffer
any error and then aborts itself.
32. Further Discussion on Ease-of-Use (pg 2-14)
As mentioned before, the question of whether an
ECAD software is user-friendly is a very subjective
consideration.
But it is not totally impossible to evaluate whether
a certain ECAD software is suitable to your work
place.
Next page shows an example of the actual
“grumbling” of a user when using the MultiSIM
software.
All you need is to have your team of people sit
down to the software and jot down all the annoyed
feelings or the amazed feelings spontaneously and
impromptu when using the software, and you
would have a rather frank review of the software.
33.
34. Assignment 2
10% of the total coursework marks.
Maximum 2 persons in a group.
Provide the web address of information
gathered.
Marks will be deduct if the lecturer finds
out any “KES TIRU-MENIRU”. In some
case, zero marks for the particular group
of student.
Cut-and-paste directly from the source,
marks will be deduct.