How To Create Software

Mainly, there are seven steps to create a software program. That includes Problem definition; Outline the logic; Algorithm development; Algorithm testing; Coding; Execute the software; and Implementation of the software.

The problem definition step is used to separate the main inputs, outputs and processing of the program. The next is outline the logic in which we can put together the logic of the program in terms of formula by developing the algorithm of the program. An algorithm is a technique of writing solution of the program in a methodical way. To develop an algorithm, there are four main methods. That includes Pseduocode, Flowchart, Decision Tree and Decision Table.

Pseudocode is used to show the solution of the program. For this, natural language statements such as English are used. It is the simplest way to represent the solution but it is difficult to interpret when there are three nested if statements. Flowchart is a graphic representation of the algorithm. It is used to display the solution using symbols. Similar to a real tree, decision tree has a number of branches. In which, each branch ends at a node that represents a situation. The decision tree operates on yes or no basis. To display the solution in a tabular format, decision table is used. All the probable rules, actions and conditions are placed in the table.

Algorithm testing is the fourth step in the creation of a software program. The walk through and desk check table are two popular techniques used to test the algorithm. The test data is organized to check the algorithm. Normally, it is recommended to test the algorithm with as a minimum two test data cases. The solutions of the test data algorithm are compared using a calculator or with the solution that is calculated manually. If the solutions are matched, the algorithm is converted into code. After the completion of code, the software is executed. Errors are usually appeared after the execution of the program.

Mainly there are two types of errors such as Syntax and Logical. Syntax errors come when you infringe the rules, whereas logical errors appeared only when you have mistaken in terms of formula or logic of the program. In terms of the rules to write a program, each programming language has its own syntax.

Implementation is the final and most important part in the software creation. The fundamental works comprise in this process are the design of basic technical architecture as well as the maintenance of database records and programs connected to the development process. One of the major situations is the implementation of the prototype model into a full-fledged working environment that is the finishing product or software.