Manipulating Data Using Methods - Java Programming: Comprehensive Concepts and Techniques - page 130

Program Development
The program development cycle for the Body Mass Index Calculator program
consists of tasks that correspond to the six development cycle phases, as shown
in Table 3-1.

Table 3-1 Body Mass Index Calculator Program Development Tasks
DEVELOPMENT PHASE

TASK(S)

1 Analyze the requirements Analyze the Body Mass Index Calculator

problem.

2 Design the solution Design the user interface for both console

applications and the applet, including output
data and placement of the applet graphic.
Design the logic to solve the problem.

3 Validate the design Confirm with the user that the design solves

the problem in a satisfactory manner.

4 Implement the design Translate the design into code. Include internal

documentation (comments and remarks) within
the code that explains the purpose of the code
statements. Create the HTML file to host the
applet.

5 Test the solution Test the program. Find and correct any errors

(debug) until it is error-free.

6 Document the solution Print copies of the application code, applet

code, applet interface, and HTML code.

Analysis and Design

Figure 3-2 shows the requirements document that initiates the development
cycle for the Body Mass Index Calculator program. The requirements document
specifies the reason for the request, lists the required inputs and outputs, and
shows the algorithm used to compute the BMI based on a person's height and
weight.