Aspects of Software Development

Aspects of Software Development

1. Analysis

   • The Data - its origin, uses, volumes and characteristics
   • Before a program can be solved, it must be defined.
   • The procedures - what is done, where, when and how, and how errors and exceptions are handled
   • The Future - development plans and expected growth rates
   • Problems with any existing system

2. Design

   • Depending on the type of project, the systems designer may consider some factors.
   • Processing - the algorithms and appropiate modular structure for the solution, specifying modules with clear documated interfaces.
   • Data Structures - how data will be held and how it will be accessed, for example tree, or database.
   • Output - content, format, sequence, frequency, medium (screen or hardcopy)
   • Input - Volume, frequency, documents used, input methods
   • User Interface - screens and dialogues, meus and special-purpose requirements
   • Security - how the data is kept secure
   • Hardware - selection of an appropiate configuration

3. Programming and testing

   • Programming is normally breaking down a problem into small tasks. Then the program code is then written in the language. However a system must be tested before being installed. Its part of a designers job to come up with a test plan.