Activity Diagram for Credit Card Processing System | UML

Credit Card Processing System Activity Diagram

The UML activity diagram is a diagram that presents the flow of credit card processing system activities. It is one of the methods used to document behavior, activities, and software development.

Additionally, the activity diagram uses symbols to define the overall workflow of the card processing system. It is composed of activities, decisions, and paths (flows).

Project Details

Name:Credit Card Processing System Activity Diagram
UML Diagram:Activity Diagram
Users:Bank Admin or Crews, and Credit Card Applicants
Tools Used:Diagram tools that provide activity diagram symbols.
Project Details

What is Credit Card Processing System?

Credit card processing is a multi-step process that is required to correctly complete credit card payments. In today’s digital age, transactions can take place in person, online, over the phone, or through the mail.

A credit card processing system is software that provides aid in a complicated business. It includes many functions such as new technology, payment networks, regulatory authorities, and financial institutions. Credit card processors, like any service involving that level of sophistication, sometimes vary in quality.

Define the Activity Diagram

An activity diagram is a type of UML that is known as a behavior diagram. This diagram shows the flow of interaction between the system and clients. This is done by helping them visualize the system’s functionality in various degrees of detail.

The activity diagram in UML describes the processes in a use case diagram. Its’ illustration can also be sequential or concurrent. It is one of the Credit Card Processing System UML diagrams.

Credit Card Processing System Activity Diagram

The activity diagram example expands the system’s concepts. It is shown in the detailed illustration to enlighten the programmers.

Activity Diagram for Credit Card Processing System in UML
Activity Diagram for Credit Card Processing System in UML

As seen in the illustration, we used the swimlane with three partitions. The left partition of the diagram shows the applicant lane. It covers all the possible activities and scope of an applicant when using the system.

Now, the system’s scope and activities were placed in the right lane. This is to show that the system acts as the actor that processes the applicant’s activities. Therefore, the system is accessible to the applicant.

To access the system, the applicant must have their accounts logged into the software. The functions were then emphasized as the activities flow and the system and users communicate.

You can add more to this and it is up to you how will you create your activity diagram. But, make sure that you have precise information and include the important decisions (actions).

Downloadable PDF File

How to Draw an Activity Diagram?

Time needed: 5 minutes

Here are the steps in developing (designing) the activity diagram for credit card processing system.

  • Step 1: Familiarize Activity Diagram Symbols

    To draw an activity diagram, you need to familiarize yourself first with the symbols used. The symbols let you discuss the system’s flow of activities and interaction.

  • Step 2: Identify the flow of actions.

    After knowing the symbols used, you will need to identify the flow of actions. The flow of actions would be based on your use case diagram.

    Actions describe the series of activities when a user invokes the card processing.

  • Step 3: Add the Actors (users) involved.

    Actors carry out their actions on things, transforming them into other objects or changing their state. This actor is someone or something that interacts with the system.

  • Step 4: Trace the flow of activities.

    To make a flow or path for activities, make sure you know that the flows can be sequential, branching, or run.


In conclusion, we have learned What is an activity diagram for credit card processing system and the steps. This diagram acts as one of the methodologies for creating the system.

Therefore, using an activity diagram in UML will not only let you understand the project but also tell you its benefits. This diagram works best with the other UML Diagrams.


If you have inquiries or suggestions about the given example Credit Card Processing System Activity Diagram, just leave us your comments below. We would be glad to hear to concerns and suggestions and be part of your learning.

Leave a Comment