The document discusses the 'Layers Box', a cloud infrastructure designed to support informal learning in small and medium enterprises (SMEs), which includes customizable deployment options and user management features. Key concerns regarding public cloud safety, such as data ownership and user authentication, are highlighted. Various delivery models, from small-scale setups to hosted environments, are also outlined to meet different SME needs.

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

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Unpacking the Layers Box

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

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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

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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

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DevOpsUse Lifecycle