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ZDNet Resources
- Towards Management of SLA-Aware Business Processes Based on Key Performance Indicators
- It is increasingly important that Service Level Agreements SLAs are taken into account when business processes are exposed as services in a Service Oriented Architecture. SLAs define expected service behavior and nonfunctional properties of the service. The fact that the service provider has to offer certain guarantees concerning SLA properties...
- Tags: Business Process, SLA, KPI, University Of Stuttgart, Service Level Management, Operational Planning, It Operations, It service Management, Business Operations
- White papers 2008-04-08
- Optical Burst Transport Network (OBTN) - A Novel Architecture for Efficient Transport of Optical Burst Data Over Lambda Grids
- This paper presents a novel network architecture, called Optical Burst Transport Network OBTN, which can efficiently transport burst data over a virtual topology and reduce the port count of optical burst nodes. In OBTN nodes, bursts from attached optical feeder networks, e. g., metro networks, are multiplexed and transported to...
- Tags: University Of Stuttgart, Optical Burst Transport Network, Networking
- White papers 2008-01-01
- Real-Time Visualisation of Urban Landscapes Using Open-Source Software
- This paper presents the results of the project GISMO, which aimed on generating and interactively visualising a 3D urban landscape model of the city of Stuttgart, Germany. With respect to the desired flexibility to support walkthrough and flyover applications, a combined approach using continuous level of detail, the impostor technique...
- Tags: Software, 3D, Open-source Software, University Of Stuttgart, Productivity, Open Source
- White papers 2008-01-01
- A Programming Language for Finite State Transducers
- This paper presents SFST-PL, a programming language for finite state transducers which is based on extended regular expressions with variables. The programming language is both simple and general and suitable for a wide range of possible applications. A compiler for the programming language is provided by the SFST tools which...
- Tags: Programming Language, Programming, University Of Stuttgart, Programming Languages, Development Tools, Software Development, Software/Web Development
- White papers 2007-07-19
- Multi-Layer Analysis to Quantify the Impact of Optical Burst Reordering on TCP Performance
- This paper provides a new methodology to quantify the impact of optical burst reordering in OBS networks on the TCP/IP end-to-end performance. The paper assumes a multi-layer network stack consisting on TCP/IP on top of OBS. It proposes a multi-layer analysis of burst and packet reordering that is realized by...
- Tags: Packet, Rational Quantify, TCP, Analysis, University Of Stuttgart, Tcp/Ip, Networking, Network Technology
- White papers 2007-04-30
- An Integrated Architecture for Business Intelligence Support From Application Down to Storage
- Off late developments both in the business and the technological domain have led to a significant increase in demand for Business Intelligence BI infrastructures that can handle huge amounts of data in small time frames. BI applications are increasingly used by large user bases on all management levels; support tasks...
- Tags: Storage, University Of Stuttgart, Business Intelligence Application, Pricing, Business Intelligence, Tools & Techniques, Databases, Enterprise Software, Marketing, Software, Data Management, Management
- White papers 2007-03-20
- Enhancement of Video Streaming QoS With Active Buffer Management in Wireless Environments
- With the emergence of high-speed wireless cellular networks, such as High Speed Downlink Packet Access HSDPA or WiMAX, new services with a high bandwidth demand have been introduced. One example is non-interactive video streaming. In contrast to wireline networks, the characteristics of wireless links, such as a time-varying bandwidth and...
- Tags: HSDPA, Network, Streaming Video, Video, University Of Stuttgart, Corporate Communications, Web Site Development, Cellular Phones, Wi-Fi, Wireless, Marketing, Internet, Consumer Electronics, Personal Technology
- White papers 2007-02-27
- Experiences With Node Virtualization for Scalable Network Emulation
- During the development of network protocols and distributed applications, their performance has to be analyzed in appropriate environments. Network emulation testbeds provide a synthetic, configurable network environment for comparative performance measurements of real implementations. Realistic scenarios have to consider hundreds of communicating nodes. Common network emulation approaches limit the number...
- Tags: Emulation, Virtualization, Network, University Of Stuttgart, Network Emulation, Networking
- White papers 2007-02-23
- Performance of TCP and HTTP Proxies in UMTS Networks
- It is well known that the large round trip time and the highly variable delay in a cellular network may degrade the performance of TCP. Many concepts have been proposed to improve this situation, including Performance Enhancing Proxies PEP. One important class of PEPs are split connection proxies, which terminate...
- Tags: UMTS, HTTP, Performance, TCP, University Of Stuttgart, Tcp/Ip, Performance Management, Networking, Human Resources, Workforce Management
- White papers 2007-01-01
- Performance of Different Proxy Concepts in UMTS Networks
- It is well known that the large round trip time and the highly variable delay in a cellular network may degrade the performance of TCP. Many concepts have been proposed to improve this situation, including Performance Enhancing Proxies PEPs. One important class of PEPs are split connection proxies, which terminate...
- Tags: UMTS, Performance, TCP, University Of Stuttgart, Performance Management, Tcp/Ip, Networking, Human Resources, Workforce Management
- White papers 2007-01-01
- Symbiosis in the Intranet: How Document Retrieval Benefits From Database Information
- The enterprise information space is split in two hemispheres. This paper contains unstructured or semistructured information; structured information is stored in databases. As regards the content, both kinds of information are complementary parts. However, enterprise information systems usually focus on one part, only. The approach improves document retrieval in the...
- Tags: Information, Intranet, University Of Stuttgart, Storage, Databases, Hardware, Enterprise Software, Software, Data Management
- White papers 2006-12-16
- A Distributed Security Announcement Authoring System With CAIF Support
- Many Security Teams issue Security Announcements aka Advisories to their constituencies to provide them with up-to-date information about security problems in soft- or hardware and their mitigation by applying workarounds or patches. To be able to use the benefits of advanced document formats designed for this task, like the Common...
- Tags: Security, Authoring System, University Of Stuttgart
- White papers 2006-09-20
- Generalized 8-PSK for Totally Blind Channel Estimation in OFDM
- Channel estimation in OFDM systems can conveniently be done by inserting a stream of pilot symbols at the transmitter and by using FIR interpolation filters at the receiver. Most blind channel estimation approaches are based on higher order statistics and converge slowly, making them unsuitable for mobile environments. Moreover, the...
- Tags: University Of Stuttgart, Channel Estimation, OFDM, Wireless
- White papers
- Modeling and Performance Evaluation of iSCSI Storage Area Networks Over TCP/IP-Based MAN and WAN Networks
- This paper provides a concise modeling and performance evaluation of the iSCSI Storage Area Network SAN architecture and protocol. SANs play a key role in business continuity, enterprise-wide storage consolidation and disaster recovery strategies in which storage resources are most often distributed over many distant data center locations. In the...
- Tags: Metropolitan Area Network, TCP/IP, iSCSI, Performance, Network, SAN, Performance Evaluation, WAN, Modeling, University Of Stuttgart, Storage, Storage Area Networks (SAN), Storage Management, Networking, Hardware
- White papers
Additional Resources
- World's first wind-powered vehicle race
- The Aeolus Race will be run in Den Helder, a sea port in the Netherlands, on August 23, 2008. Six European teams will participate to this competition with wind-powered vehicles WPVs. The track is a 5.3 kilometers seawall on the boundary between land and the sea. The students' team at...
- Tags: Team, Vehicle, Aeolus Race, Ventomobile, Team Management, Management, Roland Piquepaille
- Blog posts 2008-08-05
- Is social media accelerating a move from SOAP to REST?
- Is REST eclipsing SOAP Web services as the standard of choice, as we move toward service-orienting our enterprises? Is the Web 2.0 social media accelerating this trend? What does this all mean for enterprise SOA? 'Thousands of Web applications are being built on RESTful Web services, versus...
- Tags: Social Media, Microsoft Corp., Simple Object Access Protocol, REST, WS-*, SOAP, Web Services, Enterprise Software, Software, Joe McKendrick
- Blog posts 2007-12-01
- Hairy feet dancing on the ceiling
- Will we ever climb rocks without falling like flies walk on walls or ceilings? The Society for Experimental Biology briefly reports that German researchers who studied flies dancing on the ceiling think it's doable. After using optical sensors to look at flies under microscopes, the researchers think it's possible to...
- Tags: foot, ceiling
- Blog posts 2006-04-07
- Electric pigs use sun for dry cleaning
- According to UPI, robotic 'pigs' drive German drying plants. These electrical pigs, which look like child-sized Volkswagen Beetles, have only one task to perform: clean the 60 million tons of sewage sludge produced every year in Germany alone. Using solar energy to dry mud, these robots are environmentally friendly and...
- Tags: Thermo-System GmbH, sludge
- Blog posts 2006-03-13
- Leading German University Graduates to NetApp Virtual Tape Libraries, Completely Eliminates Tape Backups
- Founded in 1829, the University of Stuttgart is one of the leading technical universities in Germany, offering a comprehensive range of subjects with a focus on technical disciplines. The university wanted to shorten the backup window. The challenge was to improve speed and reliability of restores and reduce the total...
- Tags: Tape Library, Tape Backup, NetApp, Storage, Backups, Hardware
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