Versata - Business Logic Development & Management

Versata provides the most productive solution for

• creating
• executing
• reusing and
• changing

business logic in your distributed Java application infrastructure.

Changing Business Logic

Changing Business Transactions
Because business logic is programmed declaratively, it's designed and architected to be managed and changed declaratively. This means that you can change the business logic of your application - the rules of your business, and re-deploy without having to write code for anything.

For example, if we wanted to change the way we calculated our customer's account balance to include interest earned, we can do this without changing code. A new attribute is added to the data object. (You can choose to persist this value to the database or calculate it at the time of the query on account balance). Once this attribute is created you can add it to your calculation. Then you re-deploy to the Transaction Logic Engine, and you 're done! Voila!

Requirement		Account Balance is calculated as deposits minus withdrawals and bank charges plus interest earned.
Transaction Rule		AccountBal = Deposits - Withdrawals - BankCharges + InterestEarned

With Versata, you invest in defining the rules and processes of your business declaratively so that you can change applications as quickly as the business demands.

Changing Business Processes

The Economic Impact
Changing business applications, or application maintenance is significant. Gartner states, "Bottom Line: Enterprises should base AD decisions on development and maintenance expenses, rather than capital costs, as the latter represents usually less than 20 percent of the overall cost of new technology."

Figure 4: Application Total Cost of Ownership
Source: Gartner Research