1.3 Daily Video 1

Learning Objectives:

  • Develop a program using a development process
  • Design a program and its user interface
  • Programs are developed with a specific purpose in mind
  • Developers follows specific steps and stick to their plan
  • The development may be more exploratory and the steps are dictated by what happens
    • i.e. early AI projects
  • Program requirements describe how a program functions and may include a description of user interactions that a program must provide
  • A program’s specification defines the requirements for the program

Development Process

  1. Investigation/Reflection
    • Determine the requirements of the program
    • Understand the constraints
    • Understand the user concerns and interests
    • With surveys, user testing, interviews, direct observations, etc.
  2. Design
    • Brainstorming, by drawing on investigation
    • Storyboarding the program
    • Planning user experience
    • Laying out user interface
    • Organizing into modules
    • Develop a testing strategy
    • Decide on program requirements
  3. Prototyping
    • Of the program or components
    • An incremental process is frequently used so developers can refine modules of the program
  4. Testing
    • Test program every step of the way
    • Testing occurs at micro level and macro level
  5. Refine and revise

1.3 Daily Video 2

Learning Objectives:

  • Acknowledge code segments used from other sources
  • Programs are developed by teams of people, rarely solo
  • Individuals/teams work on different functional components
  • Each member deserves to receive credit for their work
  • Their names must be written in the documentation of the program indicating their contributions
  • Many projects use comments within the programming to give credit
  • Developers need to be able to determine who can/should fix the problem when there is bug
  • Developers may use code segments, procedures, algorithms, etc. from others
    • Must credit these individuals
    • Considered intellectual property of the author
    • Author’s name and source of code segments
    • Resembles a bibliography or a works cited in research paper

1.3 Daily Video 3

Learning Objectives:

  • Describe the purpose of a code segment or program by writing documentation
  • Program documentation is a written description of the function of a code segment, event, procedure, or program, and how it was developed
  • Comments are a form of program documentation written into the program to be read by people, and do not affect how a program runs
  • Documentation happens throughout the development process
    • Beginning: list specifications
    • During: track process
    • After: explain overall process
  • Program documentation helps effeciency of overall programming process, and programmers’ ability to test and refine the program and response to bugs
  • Improve developing or maintaining correct programs when working individually or in collaborative programming environments
  • Not all programming environments support comments, so other methods of documentation may be required

Program Design and Development Quiz