IIS Kapitel 4
Integrated Information Systems, Kapitel 4
Integrated Information Systems, Kapitel 4
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Cartes-fiches
Was sind ERP Systeme?
Set of integrated software modules for all functions that allows data to be used by multiple functions and business processes.
Wie funktionieren ERP-Systeme
Integrate data and support across all major functions
Integrate departments and functions into single infrastructure
Enable to standardize and improve business processes to implement best pracitces
Focus on end-to-end process
Change business processes to match software vs. modify ERP software to match business processes
Charakteristika von Enterprise Systems
- Integration
- Packages
- Best Practices
- Some Assembly Required
- Evolving
3 Layers of ERP-Architecture
- Data layer
- Business logic
- Presentation layer
Welche implementation strategies gibt es?
Comprehensive
Implementation of full functionality
High level of BPR required
Middle-of-the-road
Some changes to core ERP modules
Vanilla
Utilizes core ERP functionality and exploits the best practices business processes built into the software
No BPR & best practice adoption
Systemvorteile von ERP Systemen
- Integration of data and applications across functional areas
- Improvements in maintenance and support as IT staff centralized
- Consistency of user interface
- Security of data and applications enhanced
System Limitations von ERP Systemen
- Complexity of installing, configuring and maintaining
- Consolidation of IT hardware, software and people can be difficult
- Data conversion from old to new system
- Retraining IT staff and end users of the new system can produce resistance
Business Benefits of ERP Systems
- Increasing agility of the organization (responding to environment changes)
- Better collaboration between units
- Real time information exchange with supply chain --> higher efficiency
- Better customer service
Business Limitations of an ERP
- Employee retraining --> costly/ time consuming
- Resistance because of change in business roles and department boundaries
Benefits of Standard Software
- Often cheaper
- Lower error risk
- Contact person
- Customizing possible
- Low maintenance
- Integration within software families
- Can be used by companies without IT expertise
Risks of standard Software
- Process adaption
- Lock-in
- Dependence
- Limited expansion options
- Interface problems when other software with other standards, formats in use
High Level ERP purchase process
- Vendor research and information gathering
- High-level vendor demonstrations and evaluation
- Needs and requirements assessment
- Development of request for bid or proposal
- Release request for bid to vendors
- Analysis and selection
- Vendor negotiation
- Purchase system
Ethical Framework/ Priniciples
- Privacy
- Access
- Property Rights
- Accuracy
