Using XML with Legacy Business Applications

Supplemental Data Store for Control Numbers

In reviewing the utilities developed in this chapter you can start to get the feeling of how a comprehensive file conversion application might look. Such systems usually have internal data stores for things such as configuration information and auditing. In this chapter we have such a data store for interchange and group control numbers. It has been very common for application developers to implement such data stores as relational databases. Having made the choice to store information about file descriptions as XML documents, we are already on the path to using XML documents as our data stores. For reasoning very similar to what we used in Chapter 6 when considering how to store our file descriptions, ...