A major hurdle for any company to cross is the act of re-engineering software if they wish to stay relevant. With the speed that software and technology advances, it would be ignorant for any product to stagnate. With that comes the inherent difficulties of choosing which of the older technologies to keep (if any) and which newer technologies to employ in the re-engineered solution. Once that is covered, the actual implementation presents its own set of challenges to both the decision makers and developers in the process. This thesis describes a case study, in particular the efforts put forth to re-engineer some specific software. While the software is quite capable, it is becoming more and more out-dated every passing year, not to mention more difficult to maintain, upgrade and alter, providing a perfect example to explore. The focus of this thesis is to discuss what avenues of upgrading and methods of providing comparable or improved services to the end user our team chose and implemented. These include using a relational database with an advanced object-relational mapper in a modern environment to provide a REpresentational State Transfer (REST) web service that will then supply a rich interactive front-end. Taken together, these tools are quite powerful and capable.

A dynamic hierarchical web-based portal was created to house a suite of web-based supply chain management applications. The portal was designed in a hierarchical manner to match the structure of large companies. Administrators of the the portal have the ability to form the portal in such a way to mimic the existing structure of their company. Access rights to the applications in the portal may be granted or denied per division and the users of the portal are placed in these divisions based on their duty in the company. In addition, users are granted roles which dictate their ability to modify how the portal behaves. This thesis covers the client-side portion of the portal which includes the user interface and several client/server interfaces. The client-side was built with the Adobe Flex SDK and the Flash Builder 4 IDE, which connects to a ASP.NET MVC 3 back end and a MSSQL database. The code was internationalized to be able to plug in a localized language resource file. Unit tests were written with FlexUnit to test the code before deployment.