Implementation and Organisational Change
12 important questions on Implementation and Organisational Change
What are the benefits of a three-tier architecture?
- Scalability
- Reliability
- flexibility
- Maintainability
- Re-usability
- Security
What are the limitations of a three-tier architecture?
- Economics (added hardware)
- Complexity (harder to develop)
What is a service oriented architecture?
SOA is a loosely coupled, document-oriented interaction model. I.e. Logic based on interaction, not on database
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What are the limitations of SOA?
- Performance can be inconsistent
- Requires enterprise-level focus
- Security not built-in
- Costs of adjustment
What are the benefits of virtualisation?
- Enhanced hardware utilisation
- Agile provisioning and development lower TCO at data center
- Enhanced business continuity and availability (redundancy in architecture)
What are the drawbacks of virtualisation?
- Tendency to overuse hardware
- Security concerns (access control)
What does utility computing means?
What are third-party products?
There are roughly to choices:
- Integrate: sharing data and data elements directly with ERP system
- Interface: data or data tables are copied or updated to or from the ERP (not good for data quality)
What is a relational database?
Semantics (=betekenis): relational algebra to demonstrate that DB operations (merge, join, select, ...) are possible, and have correct outcomes
This is the real core of an ERP system, database technology. Before relational there were hierarchical databases. (Example between teachers and courses)
Semantics (meaning) for mathematical models and on the basis of the model predict the properties that it should have. If you have all the mathematical properties all the relations will work.
What is information integrity?
What are the stages of the ASAP Road map?
- Project preparation
- Business blueprint
- Realisation
- Final preparation
- Go Live & Support
Continuous improvement
What are the key success factors according to Mabert et al. (2003)
- Upfront planning
- Planning of education and training programs,
- Having a technology program
- Keeping modification to the source code to a minimum
- The importance of the implementation management effort itself
- More communication tends to increase the likelihood of the cost overruns
The question on the page originate from the summary of the following study material:
- A unique study and practice tool
- Never study anything twice again
- Get the grades you hope for
- 100% sure, 100% understanding
