IBM WebSphere Multichannel Bank Transformation Toolkit, Version 8.0

Extending

As a multi-channel application development toolkit, BTT implements a set of common and reusable components for channel application development. Furthermore, BTT provides tools and facilities for developers to implement channel applications more efficiently and easily. At the same time, for a channel application, there are some project specific reusable components and facilities that need to be implemented. BTT provides capability for application developers to implement project level reusable components and integrate them with BTT framework. The figure below shows the relationship of BTT, BTT extensions and channel application.

BTT classifies BTT application developers into 2 types according to their roles.
Infrastructure developer
Infrastructure developers supposed to have deep knowledge on BTT and related technologies such as OOP and Java EE. As Infrastructure developers, they are responsible for designing and implementing project specific common components and functions.
Functional developer
Functional developers supposed to have some knowledge on BTT and related technologies. As Functional developers, they are responsible for implementing specific transactions including user interface, operation logic and transaction flow. Development productivity is one of major consideration for Functional developers.
This development mode can be used to leverage reusable components and improve productive of application development.
For a topical BTT project, it will have two development phases.
Infrastructure development phase
This phase requires Infrastructure developers to design and implement project specific reusable components as BTT extensions, and customize BTT tools for these extensions if needed.
Incremental development phase
This phase requires Functional developers to use tools provided by BTT and infrastructure phase extensions to develop each transaction. The figure below demonstrates skill distribution in infrastructure development and incremental development phases.
In the infrastructure development phase, Infrastructure developers are expected to consider the following possible BTT extensions for a specific project.


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