O'Reilly logo

Use Cases: Patterns and Blueprints by Karin Palmkvist, Gunnar Övergaard

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 30. Legacy System

Problem

The system is to include or make use of an already existing system.

Characteristics: Common. Basic solution.

Keywords: Embedding existing system, existing system, incorporating existing system, old system, using existing system.

Blueprints

Legacy System: Embedded

Model

Model

Description

This blueprint captures the situation where the system includes a legacy system as a part of it, which implies that the legacy system is not structurally visible in the use-case model. However, it appears in the description of the use cases.

Applicability

This blueprint is preferred when there should be no explicit interaction with the legacy system ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required