A Conceptual Framework for Provisioning

Context-aware Mobile Cloud Services

Hyun Jung La and Soo Dong Kim

Department of Computer Science

Soongsil University

Cloud Computing 2010

Outlines

• INTRODUCTION• RELATED WORKS

• COMPUTING MODEL FOR CONTEXT-AWARE CC• TYPES OF CONTEXT-BASED SERVICE ADAPTER• CONTEXT-AWARE PROVISIONING ARCHITECTURE• DETAILED VIEWS OF ADAPTERS FOR SERVICE PRO

VISIONING

• CASE STUDY• CONCLUSION

INTRODUCTION

• Cloud Computing (CC)– Reusable services

• Mobile Internet Device (MID)– Sense users’ context– Limited resource

INTRODUCTION

INTRODUCTION

• Challenge– Monitor user contexts and provision right servi

ces for the context

• Contribution– Context-aware affects CC in terms of computi

ng model and overall architecture– Service adapters and specification of the relat

ed algorithms

RELATED WORKS

• Context– User context, web service context, resource context

• Meta-model– Service composition meta-model, context meta-model,

combined meta-model

• Adapter– Context management component, service manageme

nt component, adaptation management component

COMPUTING MODEL FOR CONTEXT-AWARE CC

COMPUTING MODEL FOR CONTEXT-AWARE CC

• Personalize a service invoked by a sevice consmer

• Remedy low QoS problems such as faults at service execution time

TYPES OF CONTEXT-BASED SERVICE ADAPTER

TYPES OF CONTEXT-BASED SERVICE ADAPTER

TYPES OF CONTEXT-BASED SERVICE ADAPTER

CONTEXT-AWARE PROVISIONING ARCHITECTURE

CONTEXT-AWARE PROVISIONING ARCHITECTURE

Service Substitutor

• Functionality: This adapter is to bind different services for the functionality for the current context

Service Interface Adapter

• Functionality: This adapter is to resolve the interface incompatibility between callers and callees

Service Component Substitutor

• Functionality: This adapter is to replace a service component with a compatible service component adapted to the given context.

Service Rerouter

• Functionality: This adapter is to modify the location of a service component which gets invoked, and to reroute the invocation to the new location.

CASE STUDY

• Travel Assistant: Provide the current locaiton information of the user

CONCLUSION

• A potential happy marriage between CC and MID

• Resource limitation of MID can besolved

• A conceptual framework (context, gap, cause, adapter)