Introduction to Procedural Programming. Procedural Programming Tutorials. Procedural programming. Procedures and modularity Scoping is another technique that helps keep procedures strongly modular.
It prevents the procedure from accessing the variables of other procedures (and vice-versa), including previous instances of itself, without explicit authorization. Because of the ability to specify a simple interface, to be self-contained, and to be reused, procedures are a convenient vehicle for making pieces of code written by different people or different groups, including through programming libraries.