In this design science research, we (Eero Hosiaisluoma, Katja Penttinen, Juha Mustonen, Jukka Heikkilä) propose integrating Enterprise Architecture (EA) into an organization’s development work. We call this method Lean Enterprise Architecture Development (LEAD) – also known as Lean EA (LeanEA). See the research article from the Research Gate link. Or you can get the pdf from here, link. Note! The case story is an EA success story in the public sector, but the same approach applies to private sector too. This is a story, in which EA was re-designed and integrated into an organisation’s development work in an IT department. The […]
Monthly Archives: October 2018
4 posts
Business Architecture can be modelled with small set of diagrams and subset of ArchiMate elements. Here is introduced some typical diagram types, that can be used for business layer modelling, as well as linking business layer to application layer. Most of the diagram types introduced here are variations of the Layered View diagram type. Business Services View This is a simplification of layered view of business services. This view introduces how business services are produced and to which business actors they are provided. ArchiMate elements used in the diagram below are as follows: Business Actor, Business Service and Business Process. Business services […]
Introduction Application Architecture (or Solution Architecture, SA) can be modelled with the same set of ArchiMate diagram types as other levels of architecture (Enterprise- and Domain levels). Application architecture can be modelled with a small subset of ArchiMate elements as follows: Application Component, Application Service and Application Interface. Relationships between those elements can be modelled with ArchiMate relationships as follows: structural relationships (Composition, Assignment, Realization), dependency relationships (Serving, Access) and dynamic relationships (Triggering, Flow). Application Architecture Overview – the Context (Layered View) An overview of an application can be modelled with Layered View. Note! Layering is the categorization of the elements, […]
Introduction Holistic enterprise development can be supported by the Service-Driven Approach (SDA), which focuses on services (instead of projects) as primary units of value creation, design, development and operations. The SDA combines both customer oriented (“outside-in”) and organization internal behavior and structure oriented (“inside-out”) approaches. By focusing on services, enterprise development (or an IT function) can be organized as a “production line” that produces services. The SDA can be supported by practical and simple model-based method, which concentrates on service life-cycle. Service-Driven Thinking The service concept is crucial, according to idea where “everything is a service“: everything can be provided and consumed […]