What is meant with refinements?<\/p>\n\n\n\n
Refinements can be used in flow charts, pseudocode, structure diagrams or other design tools to go into further details for a complex process or function.<\/p>\n\n\n\n
The top level design tool can simply mention the function. Then you make a new design for the function in detail.<\/p>\n\n\n\n
1. SET length TO prompt_for_length()\n2. SET breadth TO prompt_for_breadth()\n3. SET area TO calculate_area(length, breadth)\n4. DISPLAY area\n\n1.1 DEFINE prompt_for_length FUNCTION\n1.2 SET valid_length TO FALSE\n1.3 WHILE valid_length EQUALS FALSE\n1.4 PROMPT USER FOR length INPUT\n1.5 SET valid_length TO validate_length(length)\n1.6 RETURN length\n\n1.5.1 DEFINE validate_length FUNCTION\n1.5.2 IF length IS INTEGER AND > 0 AND < 1000\n1.5.3 RETURN TRUE\n1.5.4 ELSE\n1.5.5 RETURN FALSE\n\n2.1 DEFINE prompt_for breadth FUNCTION\n2.2 SET valid_ breadth TO FALSE\n2.3 WHILE valid_ breadth EQUALS FALSE\n2.4 PROMPT USER FOR breadth INPUT\n2.5 SET valid_ breadth TO validate_ breadth(breadth)\n2.6 RETURN breadth\n\n2.5.1 DEFINE validate_breadth FUNCTION\n2.5.2 IF breadth IS INTEGER AND > 0 AND < 1000\n2.5.3 RETURN TRUE\n2.5.4 ELSE\n2.5.5 RETURN FALSE\n\n3.1 DEFINE calculate_area FUNCTION\n3.2 SET area TO length * breadth\n3.3 RETURN area<\/code><\/pre>\n\n\n\n