Part 3b

Question 1

What are the internal drivers for EA

Answer 1

• Audit: evaluating current IST situation
• Specify Management Information: which data are needed for business
• Manage IT system portfolio: which are our core components
• Manage (out)sourcing relationship: which IT-service must be internal
• Guide systems development: specify current & to be situations
• Preparing a merger or acquisition: planning, due dilligence
• Reducing complexity: of the processes, portfolio of IT, applications etc.

Question 2

Internal drivers for EA (Groot)

Answer 2

1. Clarifying relationship between business and IT
2. Cost avoidance by leveraging existing investments
3. Shortening development and time-to-market
4. Reduce support and maintenance costs
5. Intangible things: common principles/language between IT & business

Question 3

What is design debt?

Answer 3

The architectural debt that is accumulated by applying a quick fix without proper refactoring. (Short term quick fix instead of long term fix)

Question 4

What is design debt in a graph?

Answer 4

The distance between the max complexity a firm can handle and the target complexity that a firm aims for

Question 5

Which five core components comprise an EA?

Answer 5

• As-is situation (picture approach)
• To-be situation (picture approach)
• Migration plan (picture approach)
• Principles (guidelines for users of the architecture) (guiding principle)
• Decision Log

Question 6

What are the two types of guiding principles?

Answer 6

• Commandments

- What do you want to be