1. http://Learning-Layers-euhttp://Learning-Layers-eu
Learning Layers
Scaling up Technologies for Informal Learning in SME Clusters
Unpacking the Layers Box
Cloud Infrastructure to Support Workplace Learning
István Koren and Ralf Klamma, RWTH Aachen University
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2. http://Learning-Layers-eu
Public Clouds
- Is There a Safe Harbor at all?
• Data is possibly at risk in public clouds
– Who owns your data?
• User authentication
– How safely are passwords stored?
• Data center location
– Is a data center in overseas really good for your
latency?
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3. http://Learning-Layers-eu
Layers Box
• Ready-to-deploy, custom packaged
infrastructure
• Industry-strength user management
• Pre-installed Web apps from LAPPS
• Microservices with open APIs
• Flexible deployment options
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4. http://Learning-Layers-eu
Layers Box Delivery Models
• Small-scale
– Cheap commodity hardware
– For small companies
• Medium-scale
– Server hardware
– Networks of SMEs
• Hosted
– Trusted cloud environment
– Hybrid infrastructure
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Flexible deployment options of the Layers Box

5. http://Learning-Layers-eu
Unpacking the Layers Box

6. http://Learning-Layers-eu
Unpacking the Layers Box

7. http://Learning-Layers-eu
APIs for Mobile Apps
• Configurable to use specific Layers Box
instance
• E.g., Ach so! tool for mobile video annotation
• Microservice API usage
– OpenID Connect
– Cloud storage
– Annotation services
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Ach so! app on an Android tablet

8. http://Learning-Layers-eu
Layers Adapter
• Reverse proxy for managing incoming API
requests
• Monitoring and
logging
• Load balancing
of microservices
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Layers Adapter for proxying and logging

9. http://Learning-Layers-eu
DevOpsUse Lifecycle