Linear Programming vs Structured Programming

Linear Programming:

The linear program is a method for straightforward programming in a sequential manner. This type of programming does not involve any decision making. The general model of these linear programs is:

1. Read a data value

2. Computer an intermediate result

3. Use the intermediate result to computer the desired answer

4. Print the answer

5. Stop

Structured Programming:

Structured programming (sometimes known as modular programming) is a subset of procedural programming that enforces a logical structure on the program being written to make it more efficient and easier to understand and modify. Certain languages such as Ada, Pascal, and dBASE are designed with features that encourage or enforce a logical program structure. 

Structured programming frequently employs a top-down design model, in which developers map out the overall program structure into separate subsections. A defined function or set of similar functions is coded in a separate module or submodule, which means that code can be loaded into memory more efficiently and that modules can be reused in other programs. After a module has been tested individually, it is then integrated with other modules into the overall program structure. 

Advantages of Structured Programming

1. Easy to write:  Modular design increases the programmer's productivity by allowing them to look at the big picture first and focus on details later.Several Programmers can work on a single, large program, each working on a different module. Studies show structured programs take less time to write than standard programs. Procedures written for one program can be reused in other programs requiring the same task. A procedure that can be used in many programs is said to be reusable.

2. Easy to debug:  Since each procedure is specialized to perform just one task, a procedure can be checked individually. Older unstructured programs consist of a sequence of instructions that are not grouped for specific tasks. The logic of such programs is cluttered with details and therefore difficult to follow.

3. Easy to Understand: The relationship between the procedures shows the modular design of the program. Meaningful procedure names and clear documentation identify the task performed by each module. Meaningful variable names help the programmer identify the purpose of each variable.

4. Easy to Change: Since a correctly written structured program is self-documenting, it can be easily understood by another programmer.