Jackson Structured Programming Tutorial and Examples
Before Jackson Structured Programming tutorial and examples, it is important to have general information about Jackson structured programming. Jackson Structured Programming (JSP) is a software design methodology developed by Michael A. Jackson in the 1970s. Jackson Structured Programming aims to better understand and manage software systems, processes, and data by structuring them. This method proposes to design and implement each part separately by dividing the problem into small and independent sub-parts. JSP offers an effective solution especially for data processing and file-based systems.
What is Jackson Structured Design?
Jackson Structured Programming focuses on analyzing and designing the data and processes of the system before moving on to the coding phase of the software, thus ensuring that the software is built on a solid foundation.
The JSD methodology consists of three main stages. These stages are as follows:
-Problem Modeling: In this stage, the problem is analyzed and a model is created that accurately reflects real-world entities and processes. This model forms the basis of the entire system design.
-Network Design: The logical structure of the software is designed by breaking the system into smaller and more manageable components or modules. Each module is responsible for a specific functionality of the system.
-Application Design: This stage focuses on the transformation of the logical design into a physical application. The definition of data structures, the design of algorithms, and how the system components will interact with each other are determined at this stage.
What is Jackson Structured Programming Used for?
Before Jackson Structured Programming Tutorial and Examples, it is necessary to know what Jackson Structured Programming is used for. Jackson Structured Programming is used especially in complex data processing systems, file-based applications and software projects where business logic must be clearly defined. JSP has been developed to make large and complex software projects more manageable and understandable.
This programming approach adopts a data-driven approach and ensures that processes are processed sequentially. This aims to minimize errors and increase the overall performance of the system, especially in applications where the order of operations is important. Jackson Structured Programming provides software developers with a disciplined structure, helping them develop complex systems more effectively and accurately.
These features also advantages of Jackson Structured Programming.
After general information about Jackson Structured Programming, it is necessary to learn this software approach in more detail with Jackson Structured Programming Tutorial and Examples. This is valid not only for Jackson Structured Programming, but for all software. Because no matter what software language or approach it is, software developers must first know what it is, what it is used for and who created it.
Jackson Structured Programming Tutorial
To implement JSP, follow these steps:
Data Analysis and Structure
In the first step, analyze all types of data that will be in the system and determine how this data will be structured. For example, in what form will data such as customer information and order details be stored?
Process Modeling
Determine the operations that will take place on the data structures. For example, list the order intake, processing, and delivery processes and define when and how each process will run.
Logical Design
In this step, detail the logical steps of each process. In this process, determine what data each step will interact with and what types of operations it will perform.
Implementation and Testing
After completing the design, code each component and test the entire system. The testing phase is critical to verifying that the system works as expected.
Each of these processes is logically sequenced and coded. Finally, the system is tested and any errors are corrected.
How to Make a Jackson Diagram?
Creating a Jackson Diagram allows you to define the system’s data structures and the operations to be performed on this data step by step.
The steps you can follow to create a Jackson Diagram are as follows:
1. Analyze the System’s Requirements
First, analyze the requirements of the system you will design in detail.
2. Define the Data Structures
A Jackson Diagram starts by defining the data structures. Data structures indicate what type of data the system will work with. For example, for a customer management system, data structures such as “Customer”, “Order”, “Product” can be defined.
3. Define the Processes
After defining the data structures, determine the processes to be performed on this data. Each process performs a specific operation on a specific data structure. For example, processes such as “Order Receiving”, “Order Processing”, and “Invoicing” can perform operations on the “Order” data structure.
4. Start Drawing Jackson Diagram
A Jackson Diagram has a hierarchical structure. Follow these steps while drawing the diagram:
-Represent each data structure with a box.
-Add the operations under the data structures under the relevant box. These operations are performed in a specific order.
-Show the data flow and the order of operations by drawing the connections between the operations.
5. Detail the Diagram
If you want to make your diagram more complex, you can break down the data structures and operations into subcomponents. This will allow you to create a more detailed model of your system.
6. Review and Revise the Diagram
Finally, review the Jackson Diagram you have created and make any necessary revisions. Make sure that the diagram is complete and accurate enough to meet all the requirements of the system.
Jackson Structured Programming Examples
In this part of our post titled Jackson Structured Programming Tutorial and Examples, we share Jackson Structured Programming examples.
Example 1: Order Processing System
Let’s consider the order processing process for an e-commerce platform. In this process, customer order information is received, the order is processed, and then invoiced. With Jackson Structured Programming, we can model this process as follows:
Data Structures: Customer, Order, Product, Invoice.
Processes:
Customer places an order.
Order is processed.
Invoice is created and sent to the customer.
The function of JSP in this example is to organize each step in a sequential and logical manner, so that order processing is completed without errors.
Example 2: Library Management System
A library management system keeps track of book lending and returns. we can model this process as follows:
Data Structures: Member, Book, Borrow, Return.
Processes:
Member chooses a book.
Member borrows the book. (Borrowing record is created, book status is updated).
The member returns the book. (Lending record is updated, book is made available again).
In this example, JSP clearly organizes the process of borrowing and returning books through related data structures and processes.
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