2/1/2022

Sequence Diagram For Crud Operations

A sequence diagram is a good way to visualize and validate various runtime scenarios. These can help to predict how a system will behave and to discover responsibilities a class may need to have in the process of modeling a new system. Cari pekerjaan yang berkaitan dengan Crud sequence diagram atau merekrut di pasar freelancing terbesar di dunia dengan 19j+ pekerjaan. Gratis mendaftar dan menawar pekerjaan.

  1. Crud Operations Rest
  2. Sequence Diagram For Crud Operations Using

CRUD (Create, Read, Update & Delete) are the four basic operations which being performed on data. When analyzing a system, relaying various activities and data together with a CRUD chart can help to understand the relationships between different activities, and how they being link together by the data. Visual Paradigm support creating CRUD chart for any model elements in the project. Besides manually create the CRUD chart you can also generate programmatically using Open API. In this article we will teach you how to generate CRUD chart using Open API.

Suppose we have the DFD like this. The flows from data store to process represent it is retrieving data from data store, and flows from process to data store represent it is modifying data to data store. In addition the flow named Create and Delete indicate the process is creating data and deleting data to data store.

Create Chart Diagram

First we start with creating a new chart diagram. We can use the DiagramManager.createDiagram method to create the chart diagram.

Configure column and row header

Once the chart diagram being created we then have to configure the model type for the columns and rows. To specify the header we have to create two IChartHeader, one for the column and one for the row. We then specify it is for the IDFProcess and IDFDataStore. After that retrieve the model element ID for the header and specify it to the chart diagram.

Specify column and row data

When header is ready we then specify the data for the chart. We retrieve the DFD Process model and DFD Data Store model from current opening project, and retrieve their model element IDs into array and set it into chart diagram.

Specify chart type for the diagram

Visual Paradigm build-in support CRUD and RACI chart. To create CRUD chart we have to retrieve the collection of chart type in project, then obtain the chart type which named as CRUD and set it to the diagram.

After that we obtain the chart code form chart type for later use.

Fill in chart code between column and row elements

Crud Operations Rest

Sequence diagram for crud operations

Now here is the most important step, to specify the relation between elements. We analyze the direction of the relationships to determine it should be a read access or update access. Since the DFD didn’t tell the time sequence, we determine the process is creating or deleting data based on its name. i.e. message from Process to Data Store and name as Create will be a create action, and message from Process to Data Store and named as Delete will be a delete action.

Sequence Diagram For Crud Operations Using

Show up the chart

Finally we can show up the chart diagram by calling DiagramManager.openDiagram().

Sample Plugin

The sample plugin attached and project demonstrate how to generate CRUD chart from the DFD. After you deploy the plugin into Visual Paradigm you can open the sample project, then press the Chart Diagram button under Plugins tab to create the CRUD chart. Please note that Chart diagram is supported in Standard Edition, to run this plugin you will need to have Visual Paradigm Standard Edition (or above).

Execute sample plugin to generate CRUD for DFD

For

Download Sample Plugin

Related Know-how

Related Link

When you have a generalized Use Case that includes the CRUD use cases (create, read, update, delete), i know that all these included use cases have their respective Sequence Diagram. But, when you generate the sequence diagram to the generalized use case… how you represent the messages for the inclusion to the CRUD use cases?

first, i tried to include all sequences of the includes use cases, but this is not only redundant, also enlarges the lifeline of the system class. The system would wait messages from the user like readData() or updateData(), but maybe the user will send only a deleteData() message…

I thought to use frames, but i have understand that this is for extensions, not for inclusions. If you can give me that information, i will appreciate your help in this matter.
Best regards
GMH