30.01.2014 Aufrufe

Abstract-Band - Fakultät für Informatik, TU Wien - Technische ...

Abstract-Band - Fakultät für Informatik, TU Wien - Technische ...

Abstract-Band - Fakultät für Informatik, TU Wien - Technische ...

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Paul Panhofer<br />

Ein Technologieentwurf <strong>für</strong> eine Klasse skalierender Webapplikationen<br />

Studium: Masterstudium Software Engineering & Internet Computing<br />

BetreuerIn: Ao.Univ.Prof. Dr. Gerald Futschek<br />

Web 2.0 is becoming the Buzz Word in the Distributed Systems community.<br />

The technological standards for Web Applications are continually changing<br />

resulting in a new stack of non-functional requirements. The focus of the thesis<br />

is to find a scaleable architecture for a special class of distributed softwaresystems.<br />

The processing of large amounts of data in a timely manner is key.<br />

The CAP Theorem helps us to establish a classification of dataprocessing<br />

distributed systems. This classification is key to understand the different<br />

properties and requirements in the process of developing the software<br />

architecture in question. The comparison of different classes of dataprocessing<br />

systems gives us an idea of the problem. RDBMS and NoSQL Systems are the<br />

current dataprocessing technologies. We have created two Softareprototypes.<br />

One prototype has been created as a NoSQL System the other one is using<br />

RDBMS for dataprocessing. We have been running different tests to learn<br />

about the performance, scalability and elastic speed up of the prototypes}. We<br />

have learned that RDBMS as a dataprocessing technology is not able to give us<br />

the scalability we need. On the other hand NoSQL solutions are a tool that<br />

helps us to develop a scalable architecture.<br />

Matthias Rainer<br />

Digital archiving, processing, and didactic use of historical source documents.<br />

The case of the Stock collection.<br />

Studium: Masterstudium <strong>Informatik</strong>management<br />

BetreuerIn: Ao.Univ.Prof. Dr. Karl Fröschl<br />

66<br />

A large amount of information still dwells in archives, printed on paper and out<br />

of reach of todays search engines. While it might not be necessary (or even<br />

possible) to manually process all that data, it could still prove useful to have it<br />

indexed and available for search. Such digitized information archives could be<br />

used as reference in research and educational projects. This thesis is the<br />

documentation of such a digitization project. The analog media used for this<br />

project is the Stock collection: twelve cardboard boxes filled with approximately<br />

1400 articles, information material, and other papers with a focus on<br />

automation and information technology in libraries. The state of the art is<br />

evaluated based on the U.S. Library of Congress American Memory Project. The<br />

best practices learned in the American Memory Project are freely available<br />

online as guidelines for anybody planning to digitize paper media. These<br />

guidelines will be evaluated in an attempt to transfer the Stock collection from<br />

its original paper form to a hypertext system. The digitized articles of the Stock<br />

collection will then be made available online as part of the "Die Informatisierung<br />

Österreichs" project, hosted by the Austrian Computer Society. The<br />

motivation to do so is to preserve this collection and make it available for fur-

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