Enterp. arch. as a Bus. Strat - of textbook B - Complexity and design principles
7 important questions on Enterp. arch. as a Bus. Strat - of textbook B - Complexity and design principles
What does Roger Sessions, 2008 say about EA to reduce complexity?
- Anybody can create a complex architecture.
- “ It is simple to make systems complex; it is complex to make systems simple”.
- ‘complexity = an internal driver for Enterprise Architecture’
How can an EA be positioned according to Smits, 2015?![]()
- If you don’t use enterprise architecture your IT proposals and portfolio become more reactive for you business problems and therefore complexity will increase in application portfolio. Enterprise architecture gives you a clear vision for the future and includes potential adjustments and implementation flexibility that can happen in the future.
What are internal drivers for EA?
- Audit (of systems, processes, data, etc): evaluating the current (IST) situation
- Specify Management Information: which data are needed to do business?
- Manage IT system portfolio: which are our core applications?
- Manage (out)sourcing relationships: which IT-services must be internal?
- Guide systems development: Specify current (IST) & To Be (SOLL) situations
- Preparing a Merger or Acquisition: planning, due diligence (risks? Value?)
- Reducing complexity: of the portfolio of IT, applications, and processes
- Higher grades + faster learning
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What are the internal and external drivers for EA according to Remco Groot, PWC 2015/ Shell EA 2017?
- Trends industry
- Client situation
- Trends IT
- IT Cost & Value
- Enterprise architecture
- IT Governance & Organization
- IT sourcing
What is design debt according to Ward Cunningham 1992?
What happens to the complexity if you do more quick fixes?
What says Smits, 2015 about the complexity growth of EA?
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