Linking systems and software, and the communication and data exchange between them, is complex and often difficult to control. Systems integration with an Enterprise Service Bus (ESB) as an integration layer simplifies the connection of any number of systems, reduces the complexity and allows the data exchange even with different data formats. 

Flexible Systems Integration

Simple integration of web applications through preconfigured interfaces and modules

Orchestration and Connectivity

Orchestration and mediation of applications and systems with message routing and data transformation

Low Complexity

Integration layer reduces complexity of the IT Infrastruture and reduces maintenance, admistration and costs

Challenges of IT Architecture and Systems Integration

  • Multitude of Systems: Different software soltukions for various purposes in different departments
  • Incompatible Data Formats: Various data formats Datenformate hinder data exchange and information flow
  • Communication between Systems: Suboptimal connection of software and lack of communications between applications
  • Point-to-Point Integration: Difficult-to-control existing infrastructures and legacy systems
  • Stand-alone Solutions: Non-integrated or incompatible software
  • Programming Effort: Integrating new sytems wastes IT resources
  • Maintenance and Care: Legacy systems require more and more maintenance over time while delivering less and less performance
AOE develops digital solutions and integrates them into existing systems and IT architectures. Our Integrations ensure optimally connected software and systems that communicate with each other, enable data exchange even in different formats and reduce the complexity of IT environments. Our customers can thus focus on their core business.

The Solution: ESB as Integration Layer

Using an Enterprise Service Bus (ESB) as an intermediate layer and distribution platform is an intelligent solution for complex IT infrastructures with many applications. Legacy systems and applications are flexibly connected with each other via ESB architectures; intelligent routings are set up and data transformations carried out. The simple integration without programming effort and the significantly reduced complexity enable communicatons and data exchange between systems, simplify interface management and make system control without dependencies possible.

The core concept of ESB is the integration of a multitude of applications and services via an integration layer in complex IT architectures. The applications are not linked with each other individually (point-to-point integration), but rather are connected to the ESB, which takes over the communications between the applications, the distribution of services and the exchange of data. The ESB architecture reduces IT environment complexity and makes central control and connection of systems without dependencies possible.

ESB Checklist: Using an ESB makes sense, if...

  • Three or more services or applications are being offered
  • Additional applications are to be added in the future
  • Different communication protocol types are being used
  • Message routing is needed – i.e.: When services need to be accessed by other applications or when mediation needs to take place between different services or applications

What do ESBs actually do?

  • Integration: Fast and easy integration of applications and services in one application environment without programming effort. The ESB servers as an adaptor between the different applications
  • Orchestration: Control of services and mediation between applications. Modeling and management of new processes and services such as business processes through the combination of existing services
  • Data Transformation and -Mapping: The ESB carries out the transformation of data, so that systems can communicate and exchange data with each other, despite differing data formats, services and transport protocols
  • Transport, Mediation and Routing: Exchange of messages and mediation between the application. The ESB receives messages according to predefined rules and forwrds them to the target service. The ESB is responsible for routing the messages from endpoint to endpoint
  • Management, Monitoring and Security: Securing performance and highest availability of all applicatons. The EBS is the central control management for systems and processes. Guarantee for scalability and system security, monitoring and management of applications and processes as well as troubleshooting

Middleware & ESB with AOE

System Communications

Inter-platform communications between legacy systems and different applications

Message Routing

Mediation between Services, controlling, filtering, connecting and organizing of messages based on content and rules

Data Exchange

Exchange, mapping and format transformation of data and protocols

Fast Systems Integration

Simple connecting of applications and legacy systems through preconfigured interfaces and modules

Next-Generation SOA

Flexible structuring and orchestration of services and business processes based on service-oriented architecture

Interface Management

Easy control of processes and interfaces in one central control instance without dependencies

Reduced Complexity

The IT infrastructure is simplified and dependencies are reduced through the use of an ESB instead of point-to-point integration


Scalable architecture and simple plug-in of additional applications through integration layer and cloud technology

Less Time Expended & Reduced Costs

Reduced effort for programming, maintenance and care as well as a faster time-to-market

Kai Schmidhuber
Together with AOE we were faced with the enormous challenge of transferring our offering into the digital era. The result is a unique solution for the travel and retail industries that unites complex on- and offline services and provides the optimal travel experience for our customers, regardless of whether they want to shop, merely inform themselves or use our numerous services.
Kai Schmidhuber
Senior Vice President Multichannel & E-Commerce