Steps in Implementation of a program

1. Steps in
Implementing a
Program
BY
EDISON FRANCIS BSC. IT

2. Program Implementation
 The stage in the development of a computer
program where the algorithm is put into a
programming language such as C++, Visual
Basic, Pascal, Java, Python etc.

3. Steps in program implementation
 There are four or five steps or processes that
are involved:
Creation of source code
Compiling and linking
Execution
Program Maintenance

4. Source code creation
 This is done using programming language which maybe:
 Low Level (machine or assembly language)
 High Level Language (Pascal, C++, Java, Python etc.)
 The source code produced may contain:
 Syntax error
 Logical error
 May include:
 Variables
 Control Structure:
 Conditional statements (If.. Then ..Else)
 Loops (While, For, repeat)
 Constants
 List of data that can be written to, read from or searched for

5. Compiling and Linking
 Compiling: changes the source code to
machine language or object code which
creates the executable or finished program.
 Linking: involves the system software
integrating source code and object code into a
single program.

6. Source code creation ….
 May also involve:
Testing: Ensuring that the program works
correctly.
Using test data: Test data is data used to
test that the program is working correctly.

7. Execution
 Running the program
 May result in:
Run-time error
This type of error can be solved through:
Debugging

8. Program Maintenance
 Documenting the program: stating how to use the
program or how it works.
 There are two types of documentation:
External: use of manuals
Internal: use of comments through the program or
source code

9. END