4
Handling problems and abstraction
Understand problem
Separate necessary from unnecessary details
The model defines an abstract view to the problem. This implies that the model focuses only on problem related stuff and that you try to define properties of the problem. These properties include
•the data which are affected and
•the operations which are identified
by the problem.

| The first thing with which one is confronted when writing programs is the problem. Typically you are confronted with ``real-life'' problems and you want to make life easier by providing a program for the problem. However, real-life problems are nebulous and the first thing you have to do is to try to understand the problem to separate necessary from unnecessary details: You try to obtain your own abstract view, or model, of the problem.
| The first thing with which one is confronted when writing programs is the problem. Typically you are confronted with ``real-life'' problems and you want to make life easier by providing a program for the problem. However, real-life problems are nebulous and the first thing you have to do is to try to understand the problem to separate necessary from unnecessary details: You try to obtain your own abstract view, or model, of the problem. This process of modeling is called abstraction.