1. Program Development Cycle
Prof. Carlos Rodríguez Sánchez

2. Program Planning (oriented to objects)
Analyze
Design
Choose the interfase
Code
Test & debug
Complete the documentation

3. Examples: How fast is a car traveling if it goes 50 miles in 2 hours?
Formula:
rate = distance / time
Rate = 50 miles / 2 hours
Rate = 25 mph
How much postage to put on the envelope when you mail a letter?
Rule = 1 stamp for every 5 sheets of paper or fraction
Algorithm:
Request the number of sheets
Divide by 5
Round the quotient up the next highest whole number

4. Algorithm
Request the number of sheets of paper; call it SHEETS (input)
Divide SHEETS by (processing)
Round the quotient up to the next highest whole
number; call it STAMPS (processing)
Reply with the number STAMPS (output)
We can test the algorithm for a letter with 16 sheets of paper.

5. Performing a Task on the Computer
INPUT
PROCESSING
OUTPUT

6. Programming Flowcharts
Representación gráfica de un algorítmo
Utiliza símbolos estandarizados

7. Flowchart
START
SHEETS
STAMPS = SHEETS / 5
ROUND (STAMPS)
STAMPS
STOP

8. Símbolos Principales