Logical application system environment description

With HOPEX System Oriented IT Architecture, a logical application system environment is described by an application system environment structure diagram that describes the interactions between the internal logical application systems, its users and the partner logical systems.

A logical application system environment presents a logical application system use context. It describes the interactions between the logical application system and its external partners, which allows it to fulfill its mission and ensure the expected functionalities.

Purchases are offered to private users and companies. The "Internet Purchasing" application system uses a "Purchasing Financing" logical application system that is external to the described environment.

• logical application system components that represent the logical application systems internal to the described environment.

In the example, this is the logical application system "Internet Purchasing"

A logical application service component represents the fact that the logical application system used plays a role in the described environment.

• partner logical systems that represent the logical application systems external to the described environment.

In the example, this is the logical application system "Purchasing Financing"

A partner logical system is a logical application system external to the environment of the described logical application system. The partner logical system can be a service supplier or a service consumer with respect to components of the logical application system.

• system users that represent the user category of services provided by the environment.

A system user represents an organizational unit interacting with the boundaries of an application system environment or a logical application system environment.

• Interactions between the components representing requests for services.

An interaction represents a contract established in a specific context between autonomous entities that are internal or external to an enterprise. These entities can be enterprise org-units, applications, activities or processes, as well as external org-units. The content of this contract is described by an exchange contract.