Application Harmonisation using Design Principles in LeanIX
Rainer Bartsch, Senior Enterprise Architect at RWE/Innogy give insights into Application Harmonization at EA Connect Days 2018 in Bonn: The Energy Trading business has been changing from high to low margins, from long running contracts to highly volatile (intraday) markets, from a few big players to many smaller market participants and to a business model that requires us to approach new markets and opportunities around the globe. Such constant business change, over time, results in a quite diverse IT landscape using all kinds of technologies and a hell of a lot of people to keep it running. This obviously is adverse business change but what can I do to harmonise my IT environment or prevent to get into such a situation? For sure, it doesn’t happen by accident or just by having a bunch of good developers, a set of architecture guidelines and tools! Bartsch demonstrated RWE's approach to application harmonisation based on a business & IT commitment to deliver IT solutions against a set of 10 Design Principles. This includes LeanIX as our application inventory and two different examples on how to cover Design Principles, first as Custom Tags and second as Custom Fact Sheets.
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Application Harmonisation using Design Principles in LeanIX
- 1. Application Harmonisation using Design Principles in LeanIX Rainer Bartsch, RWE Supply & Trading GmbH EA Connect Days, Bonn, 22./23. November 2018
- 2. Our heart – Europe‘s largest Energy Trading Floor
- 3. Question: in the context of your company’s IT function, which of the following do you think is true? A) We don’t have a collective view of what ‘good looks like’ B) There are too many conflicting viewpoints and too many parochial concerns in the IT organisation C) There is little discipline within the IT organisation – so we need to think more ‘architecturally’ D) We have a real mix of competencies within the IT organisation, and some people shout louder than others
- 4. Answer: I think they are all true! This is effectively the challenge! So if we want good IT, we … • need to know what ‘good looks like’ – before we can start any kind of harmonisation measures • must transcend our parochial (i.e. narrow, local) perspectives • have to be disciplined skilled people A man with a hammer … - a database admin tries to solve problems with database capabilities unskilled people Dunning-Kruger effect … - often too unskilled to know it and suffer from illusory superiority Questions: how do we know what “good looks like” ?
- 5. The Architect’s answer is: Design Principles Business value first We are using Design Principles to define what “good looks like”, because: • provide guideline with clear direction • express the value of our organization • help to inform our decisions
- 6. The Architect’s answer is: Design Principles Business value first
- 7. Two different ways to implement Design Principles A) Use LeanIX Application Tagging B) Create new LeanIX Fact Sheet type – custom extension
- 8. A) – Setup 1 2 3
- 9. A) – Application Assessment 1 2 3
- 10. A) – Assessment Report • Application Landscape report • Structured based on Business Capabilities • VIEW: select certain Design Principle Rating
- 11. B) – Setup 1 2
- 12. B) – Application Assessment Add 1 2 3
- 13. B) – Assessment Report • Standard Application Landscape report still can be used • New dedicated Design Principles Rating report available • Clustering per Design Principle • VIEW: Design Principle Rating
- 14. Approach to take decisions for application harmonisation #DP TI EOI 1 1,0 - 2 0,5 0,5 3 0,5 0,5 5 1 - 10 1 - Avg. 0,8 0,5 Business Value Based on Business Continuity Rating 10m EUR Invest MigrateEliminate Tolerate Business Value TechnicalIntegrity Low Low High High ATD2 0,8 10m Priority Action Consider Avoid (Eliminate) Business Value EaseofImplementation Low High Low Easy 0,5 10m move+/- ATD2 ATD2
- 15. What else is important to consider? A) Add further values to the relation / assessment - “Ease of Implementation” (effort to remove Technical Debt) B) Review Completeness & Consistency - have all Design Principles been applied to each application? C) Hierarchy - model parent / child relationships to detail DPs further - P/C: too complex to model → capture details at relation D) Implement TIME and PACE reports in LeanIX E) Any other idea?
- 16. Rainer Bartsch RWE Supply & Trading GmbH Enterprise Architecture Altenessener Strasse 27, D-45141 Essen Tel.: +49 201 5179 2113 Mobile: +49 162 2514405 E-Mail: [email protected]