TRESOR – Towards the Realization of a Trusted Cloud Ecosystem

Zickau, Sebastian; Slawik, Mathias; Thatmann, Dirk; Uhlig, Sebastian; Denisow, Iwailo; Küpper, Axel

doi:10.1007/978-3-319-12718-7_9

Cited by 7 publications

(3 citation statements)

References 8 publications

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“…Service Request [17] and the SDL-NG [10] developed as part of the project TRESOR 7 [18]. Table I shows examples for different types of properties in three service descriptions and a service request.…”

Section: Qos Propertymentioning

confidence: 99%

“…Variational scope [15] can be introduced to a service matching approach in three ways: (i)The matching of service description parameters to requirements with a certain amount of tolerance-assuming most requesters would accept a service 5 Java Specification Request 331 with a value slightly different than the specified value, (ii) The parameters are specified with fuzzy terms such as "good" or "very fast", (iii)The requirements are specified with their level of importance to the requester with qualifiers such as mandatory and optional. This paper analyses the service description languages/nonfunctional properties frameworks and parameters commonly used in SLA description languages, especially SMI [16] and CRF 6 [17] and the SDL-NG [10] developed as part of the project TRESOR 7 [18].…”

Section: Problem Definitionmentioning

confidence: 99%

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Cloud Service Matchmaking Using Constraint Programming

Zilci¹,

Slawik²,

Küpper³

2015

2015 IEEE 24th International Conference on Enabling Technologies: Infrastructure for Collaborative Enterprises

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Abstract-Service requesters with limited technical knowledge should be able to compare services based on their quality of service (QoS) requirements in cloud service marketplaces. Existing service matching approaches focus on QoS requirements as discrete numeric values and intervals. The analysis of existing research on non-functional properties reveals two improvement opportunities: list-typed QoS properties as well as explicit handling of preferences for lower or higher property values. We develop a concept and constraint models for a service matcher which contributes to existing approaches by addressing these issues using constraint solvers. The prototype uses an API at the standardisation stage and discovers implementation challenges. This paper concludes that constraint solvers provide a valuable tool to solve the service matching problem with soft constraints and are capable of covering all QoS property types in our analysis. Our approach is to be further investigated in the application context of cloud federations.

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Section: Qos Propertymentioning

confidence: 99%

Section: Problem Definitionmentioning

confidence: 99%

Cloud Service Matchmaking Using Constraint Programming

Zilci¹,

Slawik²,

Küpper³

2015

2015 IEEE 24th International Conference on Enabling Technologies: Infrastructure for Collaborative Enterprises

Self Cite

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“…Our contribution was conceived within two research projects targeting specific domains: TRESOR 2 targeting the German Health sector and CYCLONE 3 targeting users of federated, multi-cloud applications. TRESOR developed a cloud ecosystem featuring a cloud broker & marketplace and was thoroughly presented in our previous works [21,27,26,28]. CYCLONE is a Horizon 2020 innovation action which aims at integrating existing cloud management software to allow unified management of federated clouds.…”

Section: Introductionmentioning

confidence: 99%

The Open Service Compendium. Business-pertinent Cloud Service Discovery, Assessment, and Selection

Slawik,

Zilci,

Knaack

et al. 2015

Preprint

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When trying to discover, assess, and select cloud services, companies face many challenges, such as fast-moving markets, vast numbers of offerings, and highly ambiguous selection criteria. This publication presents the Open Service Compendium (OSC), an information system which supports businesses in their discovery, assessment and cloud service selection by offering a simple dynamic service description language, business-pertinent vocabularies, as well as matchmaking functionality. It contributes to the state of the art by offering a more practical, mature, simple, and usable approach than related works.

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