Abstract
This paper presents HAUTO, a framework able to compose convergent services automatically. HAUTO is based in HTN (hierarchical task networks) Automated Planning and is composed of three modules: a request processing module that transforms natural language and context information into a planning instance, the automated composition module based on HTN planning and the execution environment for convergent (Web and telecom) services. The integration of a planning component provides two basic functionalities: the possibility of customizing the composition of services using the user context information and a middleware level that integrates the execution of services in high performance telecom environments. Finally, a prototype in environmental early warning management is presented as a test case.
Highlights
This paper presents HAUTO, a framework able to compose convergent services automatically
We use the environmental early warning domain as the study case, the HAUTO framework is applicable to any other similar domain that meets the following conditions: i) the composite services should include Web services and/or basic telecom features like calls or send SMS, ii) the number of services should be rather limited due to the specialized field of action, iii) the procedures and services follow international standards such as ISO, so these procedures and its associated services can be described in practice using semantic annotations by domain experts, as the number of annotations needed is relatively small and the procedures and decomposition rules are shared by all the participants of the domain
The considerations are the foundations for designing the HAUTO framework: i) ease of use, ii) integration with high performance platforms used in telecommunications, iii) reaction to exceptions and fault tolerant: planning systems deployed in dynamic environments must be able to react to potential failures during execution of the services and iv) personalization: users may express their preferences in any request
Summary
Users are commonly interacting with smart apps in their smartphones through voice as well as with intelligent Web pages such as shopping sites or tourism platforms. We use the environmental early warning domain as the study case, the HAUTO framework is applicable to any other similar domain that meets the following conditions: i) the composite services should include Web services and/or basic telecom features like calls or send SMS, ii) the number of services should be rather limited due to the specialized field of action, iii) the procedures and services follow international standards such as ISO, so these procedures and its associated services can be described in practice using semantic annotations by domain experts (with the support of IT experts), as the number of annotations needed is relatively small and the procedures and decomposition rules are shared by all the participants of the domain.
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