The Triptych Dogma

• Before software can be designed & coded
• we must have a reasonable grasp of what is expected & required from that software,
• and before we can prescribe those expectations & requirements
• we must have a reasonable grasp of the domain , i.e., be able to describe it.

As a consequence we can claim that

• Software Systems Development can be ``divided'' into three phases:
  • Domain Science & Engineering
  • Requirements Engineering
  • Software Design

In this course we shall only consider domain analysis & description.