The software architecture is the most important decision in the software design process. A well-designed software architecture forms the basis for software that can perform in the long term. The architecture is especially important in complex development, where it ensures consistent quality, extensibility and sustainability of the software.

Optimal Architecture

Optimal interaction of all systems and software components as well as their connections and communications

Superior Quality

High-quality software that is productive, expandable and productive in the long term


Extendable architecture provides option for new features and connection to additional software

AOE creates the optimal software architecture for your solution. It forms the foundation for sustainable, expandable and high-quality software, which secures maximum performance and extensibility for your application in the long term.

Enterprise Application Architecture

AOE supports companies in continuously evolving and improving their enterprise architecture. Every new software project should also be considered from the overall enterprise application strategy to maximize future digital innovation possibilities. We analyze and improve existing landscapes and structures using techniques such as context maps, strategic domain-driven design and pace-layered architecture.

Software Architecture Challenges

Large enterprise projects consist of numerous systems and applications, often maintained and managed by different teams or departments. Quality software therefore requires excellent planning and an optimal architecture:

  • Overview of the Components: Functions, relationships and communication of the individual components
  • Reduce Complexity: Large variety of systems, applications and relationships
  • Software Quality: Applications must be reliable, modifiable, maintainable, safe and powerful. Technical depth should be continuously analyzed and reduced through constant architectural renewal and refactoring
  • Scalable Software: Architecture must enable growth and handle fluctuations
  • Future-Proof: Option of expandability and implementation of new applications

What does Software Architecture mean?

Software architecture provides a global overview of the structures and characteristics of a software system, which is disassembled into individual components. It describes the basic functionalities of the software components (functional architecture), the interaction and communication among the components (component architecture) as well as the distribution to hardware- and software resources. The goal of software architecture is meeting the requirements, robustness against changes as well as an excellent usability of the software system.

Another definition puts the process into focus and defines software architecture as the sum of all important decisions during the software implementation and over the complete lifecycle.

In addition, we differentiate between tactical software design, which focuses on the architecture, and design inside of single applications, and strategical software design, which focuses on the overall software design and the integration and relations between applications.

Long-term Foundation for Quality Software

The software architecture is determined in particular by non-functional, qualitative software criteria such as security, modifiability, maintainability and performance. Quality features of software are:

Software Architecture as a strategic Business Decision

The software architecture is one of the first and most important decisions in creating a concept for the software. Moreover, improving and evolving the software architecture should be part of the ongoing agile development. The architecture is developed in the context of the corporate structure, i.e. it takes into account all business processes, roles, organizational structures and IT. In this context, economic goals such as cost- and risk minimization, benefit optimization and automation are the focus. Important factors to consider when planning the appropriate software architecture are project planning and risk analysis, the development process, organization and workflows, requirements and quality assurance.

Hardware- & Application Planning

  • Hardware Planning: Together with you, AOE will plan and develop the best-suited server architecture for your solution. For this, the ideal server needs are determined, so that all systems can then be optimally coordinated. In addition, AOE will identify the requirements for availability, performance (auto)-scaling and security of the system and will develop concepts for clustering, redundant configuration, load balancing and intelligent caching – including planning of complex load test scenarios.
  • Application Planning: Together with you, AOE will plan the optimal application architecture of your enterprise web solution – from applications to data architecture and interfaces. AOE works with up-to-date agile methods and standards such as MVC and domain-driven design for the tactical design – and strategic domain-driven design, service orientation and microservices for the strategic architecture. Proven solutions for systems integration ensure that the various software components are perfectly coordinated and data is synchronized across all systems.

Domain-Driven Design

Domain-Driven Design is a method for modeling complex, object-oriented software. This approach focuses on the business and professional requirements (domain) of software development. The method enables a comprehensive understanding of the requirements, which forms the basis of individual software solutions.

The domain model describes elements, structure and processes of your domain using object-oriented concepts in easy-to-understand, domain-specific language. It depicts the relevant business- and technical connections in a task-oriented way and forms the kernel of your software. The domain model is built in several development cycles, optimized and extended – using an iterative approach. In this way, your business- and professional processes are more fully reflected and deliver a valuable foundation for knowledge.

Model View Controller Architecture

The MVC model is a proven solution approach for structuring software development. AOE uses it to create a clearer, more easily maintainable and flexible program code. The MVC paradigm comprises three components:

  • Model: The Model manages the data to be displayed and combines it with the application logic.
  • View: The view is responsible for displaying the data newly created by the model. It can retrieve and display information from the model, is informed about changes to the model, and accepts user input.
  • Controller: The Controller allows users to control and receive their user actions, and evaluates and responds to them.

Strategic Domain-Driven Design

Design of distributed applications needs to be done wisely.  Strategic domain-driven design is an approach for modelling large-scale applications and systems. Unlike domain-driven design, which focuses on the tactical design in an application, strategic domain-driven design is an approach that is very helpful for high-level strategic design of an application as well as distributed software architecture.

It is a pattern family around using and defining bounded context and thinking explicitly of the different relationship patterns and the required "translation" of similar "concepts" between the bounded contexts.  It helps in finding a good strategic architecture in alignment with the requirements, the domain and takes Conway’s Law into consideration. A context map and a common conceptual core help to understand and improve the overall strategic picture.  Especially with the microservice approach, it is important to define and connect services following the “low coupling-high cohesion” principles, by identifying fitting bounded contexts.

Software Architecture with AOE

Software Quality

Solid basis for durable high-quality software

Powerful Applications

Securing permanently powerful applications

Expandable & Scalable

Flexible structure enables integration of future features and applications


Foundation for a long-term software solution

Reduced Complexity

Overview of components, functions and relationships

Integration into existing IT

Optimal integration of applications into legacy systems and existing IT environments

Optimized Business Processes

Depiction, optimization and automation of business processes

Agile Methods

Collaborative planning and close coordination with the customer


Open Source solutions mean you are not dependent on software vendors

Daniel Pötzinger
The goal of software architecture is to fulfill the requirements and create a robustness with respect to changes – as well as a good usability of the entire software system. A good architecture has no accidental complexity and is easy to understand for different teams – and it takes the organizational setup into account. Once set up, software architecture can be changed only with considerable effort. Because of this, AOE sets great store in creating a flexible and future-proof software architecture during the agile development process.
Daniel Pötzinger

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