Software Eng Class

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Software Eng Class
2012-09-15 16:06:22
Eng Class

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  1. What is software?
    Computer programs and associated documentation. Software products may be developed for a particular customer or may be developed for a general market.
  2. What are the attributes of good software?
    Good software should deliver the required functionality and performance to the user and should be maintainable, dependable and usable.
  3. What is software engineering?
    Softwareengineering is an engineering discipline that is concerned with all aspects of software production.
  4. What are the fundamental software engineering activities?
    Software specification, software development, software validation and software evolution.
  5. What is the difference between software engineering and computer science?
    Computer science focuses on theory and fundamentals; software engineering is concerned with the practicalities of developing and delivering useful software.
  6. What is the difference between software engineering and system engineering?
    System engineering is concerned with all aspects of computer-based systems development including hardware, software and process engineering. Software engineering is part of this more general process.
  7. What are the key challenges facing software engineering?
    Coping with increasing diversity, demands for reduced delivery times and developing trustworthy software.
  8. What are the costs of software engineering?
    Roughly 60% of software costs are development costs, 40% are testing costs. For custom software, evolution costs often exceed development costs.
  9. What are the best software engineering techniques and methods?
    While all software projects have to be professionally managed and developed, different techniques are appropriate for different types of system. For example, games should always be developed using a series of prototypes whereas safety critical control systems require a complete and analyzable specification to be developed. You can’t, therefore, say that one method is better than another.
  10. What differences has the web made to software engineering?
    The web has led to the availability of software services and the possibility of developing highly distributed service-based systems. Web-based systems development has led to important advances in programming languages and software reuse.
  11. Heterogeneity is
    The idea that Increasingly, systems are required to operate as distributed systems across networks that includedifferent types of computer and mobile devices.
  12. Business and social change
    Business and society are changing incredibly quickly as emerging economies develop and new technologies become available. They need to be able to change their existing software and to rapidly develop new software.
  13. Security and trust
    As software is intertwined with all aspects of our lives, it is essential that we can trust that software.
  14. Stand-alone applications are
    These are application systems that run on a local computer, such as a PC. They include all necessary functionality and do not need to be connected to a network.
  15. Interactive transaction-based applications
    Applications that execute on a remote computer and are accessed by users from their own PCs or terminals. These include web applications such as e-commerce applications.
  16. Embedded control systems are
    These are software control systems that control and manage hardware devices. Numerically, there are probably more embedded systems than any other type of system.
  17. Batch processing systems are
    These are business systems that are designed to process data in large batches. They process large numbers of individual inputs to create corresponding outputs.
  18. Entertainment systems
    These are systems that are primarily for personal use and which are intended to entertain the user.
  19. Systems for modeling and simulation
    These are systems that are developed by scientists and engineers to model physical processes or situations, which include many, separate, interacting objects.
  20. Data collection systems
    These are systems that collect data from their environment using a set of sensors and send that data to other systems for processing.
  21. Systems of systems are
    These are systems that are composed of a number of other software systems.
  22. The waterfall model
    Plan-driven model. Separate and distinct phases of specification and development.
  23. Incremental development
    Specification, development and validation are interleaved. May be plan-driven or agile.
  24. Reuse-oriented software engineering
    The system is assembled from existing components. May be plan-driven or agile.
  25. Individuals and Interactions over Processes and Tools
    Focus effort toward creating an environment that enables teammates, customers, and management to understand the process, become part of it, contribute to it, and work with all the other project stakeholders.
  26. Working Software Over Comprehensive Documentation
    Focus on the development itself and the creation of documents needed for the development process Start actual development as soon as possible so as to get feedback as early as possible Produce quality software from the beginning
  27. Customer Collaboration over Contract Negotiation
    Ongoing and daily developer contact with the customer helps to address change Emphasize the human relationship between customer, management, and developers Early and often customer contact helps to minimize surprise
  28. Responding to Change over Following a Plan
    Requirements cannot be fully understood ahead of time Customer often change their mind as they better understand what they want Processes need to be to able to respond to change in as a cost-effective manner as possible.