Tiers and components

Branch Transformation Toolkit architecture consists of components, tiers or logical subsystems, subsystems, and Java(TM) packages, which can be used to define, view, and package solution technologies. The solution development process identifies the different parts of the architecture. For example, the requirements phase identifies components, the analysis phase identifies tiers and logical subsystems, and the design and coding phases identify physical subsystems and Java packages. Identifying these items during development ensures that the system structure is consistent and has integrity.

The following chart shows how toolkit components and tiers map into the J2EE solution architecture.

Diagram showing the three tiers and the communication occurring between them