Example: Rent-a-Car Realization Matrix
This example presents a simple tabular format that can be used to document realization decisions.
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Main Description

We need to capture the realization decisions for a Rent-a-Car example. It is not necessarily straight-forward to do this in a design tool. To help in this process, a matrix in a format such as the one in the table that follows can be used to document the result of these decisions.

Enterprise Component Realized Service Functional & Technical Components Realization Decision Why
Reservation Reserve Vehicle
  • Reservation
  • Logging
  • Permission & Policies Mgmt
  • Reuse Legacy Services offered by Reservation component
  • Reuses existing logging component
  • Requires new Permission & Policies Management component
  • Basic functionality exists - this will Reuse & Build additional capability
  • A new Permission & Policy Management component will be created to encapsulate underlying functions
  • Legacy system can be leveraged to meet the QoS requirements
Modify Reservation
Confirm Rental Information
Locate Reservation
  • Reservation
  • Logging
  • Reuse Legacy Services offered by Reservation component
  • Reuses existing logging component
  • Legacy system does not have any functional gaps; and can be leveraged to meet the QoS requirements.
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