Logo des Repositoriums

Softwaretechnik-Trends 35(3) - 2015

https://dl.gi.de/handle/20.500.12116/40765
Auflistung nach:

Auflistung Softwaretechnik-Trends 35(3) - 2015 nach Autor:in "Brunnert, Andreas"

1 - 3 von 3
  • Zeitschriftenartikel
    Modeling Big Data Systems by Extending the Palladio Component Model
    (Softwaretechnik-Trends Band 35, Heft 3, 2015) Kroß, Johannes; Brunnert, Andreas; Krcmar, Helmut
    The growing availability of big data has induced new storing and processing techniques implemented in big data systems such as Apache Hadoop or Apache Spark. With increased implementations of these systems in organizations, simultaneously, the requirements regarding performance qualities such as response time, throughput, and resource utilization increase to create added value. Guaranteeing these performance requirements as well as efficiently planning needed capacities in advance is an enormous challenge. Performance models such as the Palladio component model (PCM) allow for addressing such problems. Therefore, we propose a metamodel extension for PCM to be able to model typical characteristics of big data systems. The extension consists of two parts. First, the meta-model is extended to support parallel computing by forking an operation multiple times on a computer cluster as intended by the single instruction, multiple data (SIMD) architecture. Second, modeling of computer clusters is integrated into the meta-model so operations can be properly scheduled on contained computing nodes.
  • Zeitschriftenartikel
    A Performance Model Management Repository Based on the Palladio Component Model
    (Softwaretechnik-Trends Band 35, Heft 3, 2015) Danciu, Alexandru; Brunnert, Andreas; Krcmar, Helmut
    Applying performance models to evaluate component-based enterprise applications in practice is becoming more and more difficult with an increasing organizational complexity. Components can be governed by different organizational units, are subject to a continuous shift between life cycle phases, and exhibit diverging release levels. Creating and maintaining performance models based on the composition of these components can, therefore, represent an elaborate task. A Performance Model Management Repository (PMMR) supports managing performance models in complex enterprise environments. This paper presents the implementation of a PMMR based on the Palladio Component Model (PCM). The PCM meta-model is extended to enable managing and maintaining multiple versions of components and their interfaces. Furthermore, resource demand specifications derived from different hardware environments are integrated into the meta-model. The Palladio-Bench is extended for persisting PMMR elements to EMFStore.
  • Zeitschriftenartikel
    Symposium on Software Performance (SSP) 2015
    (Softwaretechnik-Trends Band 35, Heft 3, 2015) Becker, Steffen; Brunnert, Andreas; Hasselbring, Wilhelm; van Hoorn, André; Kounev, Samuel; Krcmar, Helmut; Reussner, Ralf