Unit 6 - P5 Part 2

Various software structures and how they fit into the into the life cycle

Functions

Function are commands which you give to objects in forms, for example a button can have the function to display a calculation of two integers in a text box. Also a function can be used to define parameters, this means that it can change the format of data that is entered into objects like texts boxes, for example it could change the format of text in a text box from text into a integer value which allows calculations to display actual values.

Procedures

A procedure is section of statements that is within a function.

Classes/Objects

Objects are items that can be placed into a form and coded with functions so that they do certain things, for example a text box is an object, say if this text box were to be coded to display a result from a calculation of two other text boxes this would display the answer to that calculation. Other objects may also be placed into a form such as; labels, scroll bars, buttons and many more.

Data abstractions

Pre-defined code

Pre-defined code is code that can be automatically placed into a object or function via

Readability