VMOSS Model View Controller Architecture

VMOSS (Volunteer Management Open Source Software) is a standalone implementation of the Sahana Volunteer Management module. This page describes VMOSS's design and architecture.

Code Structure
VMOSS uses the same file structure as Sahana. The majority of the files located in the /mod/vm directory. One way to extend the VMOSS application would be to add a new module to it, following the same procedure outlined in the hello-world example.

Model-View-Controller Architecture
VMOSS uses a Model-View-Controller (MVC) architecture to manage the interaction between the user and the system. According to this design pattern, the system's data (the model) is separated from the user interface (the view), so that these two aspects of the system can be dealt with independently. Changes to the data will not affect the user interface and vice versa. Interaction between the model and view is managed by the controller, which contains the program's control logic.

UML
The following UML diagram gives a detailed break-down of the design, including the function names and attributes currently implemented in VMOSSDemo.

Data Schema
The following diagram shows how VM module interacts with the Sahana framework.



Code Repository and Documentation

 * VMOSS source code is hosted on Sourceforge. You can use the Sourceforge browse option to inspect the source code.


 * See the INSTALL and README files first.


 * Generated (PhP Documentor) VMOSS documentation is hosted on Sourceforge. On sourceforge, select the sahana (lowercase) package from Packages menu and scross down to the vm module.