Please enable JavaScript.

Coggle requires JavaScript to display documents.

SWE102 - 1 - INTRODUCTION dropped image link (PROFESTIONAL SOFTWARE…

- - - - Batch processing systems
      - Entertainment systems
      - Embedded control systems
      - Systems for modeling and simulation
      - Interactive transaction-based applications
      - Data collection systems
      - Stand-alone applications
      - Systems of systems
    - - Dependability and performance are important for all types of systems. Software should behave as expected, without failures and should be available for use when it is required. It should be safe in its operation and, as far as possible, should be secure against external attack. The system should perform efficiently and should not waste resources.
      - Understanding and managing the software specification and requirements (what the software should do) are important. You have to know what different customers and users of the system expect from it and you have to manage their expectations so that a useful system can be delivered within budget and to schedule.
      - They should be developed using a managed and understood development process. The organization developing the software should plan the development process and have clear ideas of what will be produced and when it will be completed. Of course, different processes are used for different types of software.
      - You should make as effective use as possible of existing resources. This means that, where appropriate, you should reuse software that has already been developed rather than write new software.
  - - - It is now generally recognized that it is impractical to specify all the requirements for such systems in advance. Web-based systems should be developed and delivered incrementally.
      - User interfaces are constrained by the capabilities of web browsers. Although technologies such as AJAX (Holdener, 2008) mean that rich interfaces can be created within a web browser, these technologies are still difficult to use. Web forms with local scripting are more commonly used. Application interfaces on web-based systems are often poorer than the specially designed user interfaces on PC system products.
      - Software reuse has become the dominant approach for constructing web-based systems. When building these systems, you think about how you can assemble them from pre-existing software components and systems.
  - - - Engineering discipline
        
        Engineering makes things work. They apply theories, methods and tools where these are appropriate. However, they use them selectively and always try to discover solutions to problem even when there are no application theories and methods. Engineers also recognize that they must work to organizational and financial constranints so they look for solutions within these constrants.
      - All aspects of software production
        
        Software engineering is not just concerned with the technical processes of software development. It also includes activeties such as software project management and the development of tools, methods, and theories to support software production.
    - - More and more, individuals and society rely on advanced software systems. We need to be able to produce reliable and trustworthy systems economically and quickly.
      - It is usually cheaper, in the long run, to use software engineering methods and techniques for software systems rather than just write the programs as if it was a personal programming project. For most types of systems, the majority of costs are the costs of changing the software after it has gone into use.
    - - Software specification, where customers and engineers define the sofware that is to be produced and the constraints on its operation.
      - Software development, where the software is designed and programmed
        
        Design (erd, ui, mvc)
        
        Code
        
        Phân tích lựa chọn phương án
        
        Quản lý code
      - Software validation, where the software is checked to ensure that it is what the customer requires. (QC - quality control)
      - Software evolution, where the software is modified to reflect changing customer and market requirements.
    - - Computer science is concerned with the theories and methods that underlie computers and software systems, whereas software engineering is concerned with the practical problems of producing software. Some knowledge of computer science is essential for software engineers in the same way that some knowledge of physics is essential for electrical engineers. Computer science theory, however, is often most applicable to relatively small programs. Elegant theories of computer science cannot always be applied to large, complex problems that require a software solution.
      - System engineering is concerned with all aspects of the development and evolution of complex systems where software plays a major role. System engineering is therefore concerned with hardware development, policy and process design and system deployment, as well as software engineering. System engineers are involved in specifying the system, defining its overall architecture, and then integrating the different parts to create the finished system. They are less concerned with the engineering of the system components (hardware, software, etc.).
    - - Business and social change
        
        Business and society are changing incredibly quickly as emerging economies develop and new technologies become availble. They need to be able to change their existing software and to rapidly develop new software. Many traditional software engineering techniques are time consuming and delivery of new systems often takes longer than phanned. They need to evolve so that the time required for software to deliver value to its customers is reduced.
      - Security and trust
        
        As software is intertwined with all aspects of our lives, it is essential that we can trust that software. This is especially true for remote software systems accessed through a web page or web service interface. We have to make sure that malicious users cannot attack our software and that information security is maintained.
      - Heterogeneity
        
        Increasingly, systems are required to operate as distributed systems across networks that include different types of computer and mobile devices. As well as running on general-purpose computers, software may also have to execute on mobile phones. You often have to integrate new software with older legacy systems written in different programming languages. The challenge here is to develop techniques for building dependable software that is flexible enough to cope with this heterogeneity.
  - - - Customized Products
      - Generic Products
    - - Generic Products
      - Customized Products
    - - Efficiency
      - Depentability and security
      - Acceptability
      - Maintainability