CloudScale Knowledge Wiki

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Welcome to the CloudScale project wiki!
You can follow the improvements and results of the project from this wiki site.
Learn more about the CloudScale at the project's web site
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CloudScale is a Framework Programme Seven (FP7) European Commission funding technological project, aiming to aid service providers in analysing, predicting and resolving scalability issues, i.e., support scalable service engineering.

The project extends existing and develops new solutions that support the handling of scalability problems of software-based services.

CloudScale's Architectural Template (AT) language is a language to formalize architectural styles on component models for automated scalability analyses. We provide a repository of such architectural templates for designing and analyzing scalable SaaS applications.

Name/Link Context
Simplified SPOSAD CAT A 3-tier architecture that requires a scalable middle tier.
SPOSAD CAT A 3-tier architecture that requires multi-tenancy and/or scalability.

Our common ontology for topics related to performance, scalability, and elasticity of software architectures.

HowNotTos: List of performance anti-patterns.

Name/Link Context
One-Lane_Bridge A One Lane Bridge occurs, if a passive resource limits the concurrency in an application. Passive resources can be for instance mutexes, connection pools, or database locks.
the Blob The Blob occurs when one class performs most of the system work relegating other classes to minor, supporting roles.