Lavante · Enterprise Architecture Consulting

Case Studies

Architecture in practice.

A place for documented architecture challenges, approaches and outcomes. Engagement examples are shared here to illustrate the experience with actual live situations we have addressed.

How we document engagements

Each published case study will explain the business context, the architectural challenge. The documentation follows TOGAF standards for artefacts and work-products. Architectural diagrams are built using ArchiMate.

Business context and drivers

Business context and drivers are documented in the Architecture Vision and Architecture Definition artefacts. The documentation starts with Business Strategy, Business Principles, the value chain and linked business capabilities, which are translated into IT Principles / Architecture Principles.

Architecture challenges and constraints

Architecture constraints are assessed and documented in the Architecture Definition. Challenges and stakeholder concerns are addressed in the Architecture Vision document.

Methods, decisions and architectural deliverables

Following TOGAF as the methodology, governance of decisions and deliverables is based on Architecture Decision Records (ADRs), technical debt management and risk management, following the TOGAF ADM process.

Verified outcomes and transferable lessons

The case studies below present real results from earlier assignments and offer valuable lessons. These case studies have been anonymised for privacy reasons.

Architecture challenges worth exploring

Potential subjects include integration reference architectures, enterprise capability mapping, target architecture development and governance operating models. These are topic areas, not claims about specific client engagements.

Integration architecture and domain boundaries

Bringing direction to decentralised integration development

Interface development is distributed across multiple teams and developers. Without shared architectural guidance, teams can adopt inconsistent integration patterns, standards and technologies. Unclear ownership can also leave integration responsibilities moving between departments without resolution.

A structured approach addresses these challenges:

  • Establish an integration reference architecture that defines common patterns, standards and development guidelines.
  • Provide practical decision guidance explaining when to apply each integration pattern and which technologies or platforms to use.
  • Clarify ownership and responsibilities for interfaces, information and integration services.
  • Apply Domain-Driven Design to identify business-aligned domains and bounded contexts, making system responsibilities and integration boundaries explicit.
  • Embed architectural governance through reviews, coaching and shared decision-making to help teams apply the guidance consistently.

This approach gives development teams a common reference while supporting clear accountability across business and IT.

Business capability and application landscape analysis

Assessing business capabilities together with business stakeholders creates transparency in prioritisation. It clarifies which capabilities are strategically important, where improvement is needed and where being “good enough” is sufficient.

Mapping these capabilities to the services and applications that support them reveals how the current technology landscape enables business priorities. This helps align IT initiatives and investment decisions with business needs, guiding application landscape transformation through governed application portfolio management.

Architecture governance and decision frameworks

Architecture governance establishes clear responsibilities, decision authority and review practices to guide business and technology change. Lavante helps organisations apply architecture principles and standards through practical decision frameworks, Architecture Decision Records (ADRs), and the management of technical debt and architectural risks.

The aim is to make informed decisions, maintain alignment with business objectives and support delivery teams through proportionate reviews, guidance and coaching.

Transformation roadmaps and target architectures

Reaching a target architecture can be more challenging than defining it. In some situations, a single coordinated transition is the most appropriate approach. In others, a phased migration allows current and future architectures to coexist within a hybrid landscape.

Lavante brings experience in assessing these options, balancing business requirements, delivery constraints and risk. We help define the transition architectures and practical steps needed to move towards the target state while maintaining business continuity.

Published case studies

Client-approved case studies will be linked here when available.