The Business Layer defined the “What” and “Who.” Now, we tackle the “How.” In many organizations, the Application Layer is a chaotic “black box” of legacy monoliths and fragmented microservices. To manage this complexity, you need more than just a list of names—you need a structured ontology.
This second installment of our 5-part series dives deep into the Application Layer of the Essential Architecture Store (EAS) Meta-Model v6.21. We move beyond static spreadsheets to model applications as dynamic assets that support business capabilities and drive digital transformation.
What You Will Learn in Part 2
This is a 100% hands-on deep dive into modeling the software landscape. We explore the critical relationships between business needs and technical implementation.
- Application Services vs. Functions: Learn to distinguish between what an application does for the user and how it operates internally.
- The Provider/Instance Logic: Master the complex EAS logic of distinguishing between a “Software Product” (the vendor’s version) and an “Application Provider” (your organization’s specific deployment).
- Integration & Data Flow: Stop drawing lines; start modeling interfaces. We will map how data moves between systems using a graph-based approach.
- Lifecycle & Disposition: Use the meta-model to drive strategy. We will model application roadmaps (Buy, Hold, Retire) to automate portfolio rationalization.
