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Usability Analysis of Visual Programming Environments: a `cognitive dimensions' framework

by T. R. G. Green, M. Petre - JOURNAL OF VISUAL LANGUAGES AND COMPUTING , 1996
"... The cognitive dimensions framework is a broad-brush evaluation technique for interactive devices and for non-interactive notations. It sets out a small vocabulary of terms designed to capture the cognitively-relevant aspects of structure, and shows how they can be traded off against each other. T ..."
Abstract - Cited by 514 (13 self) - Add to MetaCart
techniques focus on different aspects and would make good complements. Insofar as the examples we used are representative, current VPLs are successful in achieving a good `closeness of match', but designers need to consider the `viscosity' (resistance to local change) and the `secondary notation

Virtual Private LAN Service (VPLS) Interoperability

by A. Sajassi, F. Brockners, Cisco Systems, Y. Serbest , 2011
"... One of the main motivations behind Virtual Private LAN Service (VPLS) is its ability to provide connectivity not only among customer routers and servers/hosts but also among customer IEEE bridges. VPLS is expected to deliver the same level of service that current enterprise users are accustomed to f ..."
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One of the main motivations behind Virtual Private LAN Service (VPLS) is its ability to provide connectivity not only among customer routers and servers/hosts but also among customer IEEE bridges. VPLS is expected to deliver the same level of service that current enterprise users are accustomed

MPLS/VPLS Evolution: A Riverstone Perspective

by unknown authors
"... Carrier networks are currently going through a signifi cant evolution. Instead of maintaining separate transport networks to provide voice, video and data services, they are moving towards a common packet based network infrastructure for businesses and residential customers, ..."
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Carrier networks are currently going through a signifi cant evolution. Instead of maintaining separate transport networks to provide voice, video and data services, they are moving towards a common packet based network infrastructure for businesses and residential customers,

Virtual Private LAN Service (VPLS) Using Label Distribution Protocol (LDP) Signaling", Phelan, et al

by Group M. Lasserre - Expires November 18, 2011 [Page 17] Internet-Draft DCCP-UDP Encapsulation May 2011 RFC 4762 , 2007
"... This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards " (STD 1) for the standardization state and status of this pro ..."
Abstract - Cited by 8 (0 self) - Add to MetaCart
This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards " (STD 1) for the standardization state and status

Virtual Private LAN Service: The new challenge for LAN/WAN connectivity

by Marcelo Yannuzzi, Eva Marín Tordera, Xavier Masip-bruin
"... Abstract- This paper presents a technical overview of VPLS (Virtual Private LAN Service), its current state of the art, its strengths and weaknesses, and most important of all, several open issues and future research work. I. ..."
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Abstract- This paper presents a technical overview of VPLS (Virtual Private LAN Service), its current state of the art, its strengths and weaknesses, and most important of all, several open issues and future research work. I.

Incremental Instant Radiosity for Real-Time Indirect Illumination

by Jan Kautz, Sumanta Pattanaik (editors, Hannu Saransaari, Janne Kontkanen, Jaakko Lehtinen, Timo Aila
"... We present a method for rendering single-bounce indirect illumination in real time on currently available graphics hardware. The method is based on the instant radiosity algorithm, where virtual point lights (VPLs) are generated by casting rays from the primary light source. Hardware shadow maps are ..."
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We present a method for rendering single-bounce indirect illumination in real time on currently available graphics hardware. The method is based on the instant radiosity algorithm, where virtual point lights (VPLs) are generated by casting rays from the primary light source. Hardware shadow maps

1.0 HISTORICAL BACKGROUND OF PROGRAMMING LANGUAGES AND ENVIRONMENTS: TEXTUAL PROGRAM-

by Rodina Ahmad
"... Visual programming languages(VPLs) represent quite the biggest departure from traditional programming approaches. However the last ten years have seen quite remarkable progress in this field. There is a number of visual programming languages (VPLs) already in the market and others are still in the r ..."
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Visual programming languages(VPLs) represent quite the biggest departure from traditional programming approaches. However the last ten years have seen quite remarkable progress in this field. There is a number of visual programming languages (VPLs) already in the market and others are still

Efficient VAL-based Real-Time Global Illumination

by Christoph Weinzierl-heigl, Supervised Reinhold Preiner
"... Due to recent advances in consumer grade graphics hard-ware the field of global illumination techniques are not limited to offline rendering anymore. Current real-time techniques to approximate global illumination are mostly based on rendering large amounts of virtual point lights (VPLs), however wi ..."
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Due to recent advances in consumer grade graphics hard-ware the field of global illumination techniques are not limited to offline rendering anymore. Current real-time techniques to approximate global illumination are mostly based on rendering large amounts of virtual point lights (VPLs), however

Virtual ray lights for rendering scenes with participating media

by Jan Novák, Derek Nowrouzezahrai, Carsten Dachsbacher, Wojciech Jarosz - ACM TRANSACTIONS ON GRAPHICS (PROC. SIGGRAPH , 2012
"... We present an efficient many-light algorithm for simulating indirect illumination in, and from, participating media. Instead of creating discrete virtual point lights (VPLs) at vertices of random-walk paths, we present a continuous generalization that places virtual ray lights (VRLs) along each pa ..."
Abstract - Cited by 21 (9 self) - Add to MetaCart
We present an efficient many-light algorithm for simulating indirect illumination in, and from, participating media. Instead of creating discrete virtual point lights (VPLs) at vertices of random-walk paths, we present a continuous generalization that places virtual ray lights (VRLs) along each

AMS-IX infrastructure

by Universiteit Van Amsterdam, Attilla De Groot, Yuri Schaeffer , 2009
"... On the current Amsterdam Internet Exchange (AMS-IX) platform multicast support is provided in a seperate VLAN. This prevents multicast traffic to be forwarded to every connected member. This year the AMS-IX will upgrade their platform to a MPLS/VPLS setup. This report describes how multicast can be ..."
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On the current Amsterdam Internet Exchange (AMS-IX) platform multicast support is provided in a seperate VLAN. This prevents multicast traffic to be forwarded to every connected member. This year the AMS-IX will upgrade their platform to a MPLS/VPLS setup. This report describes how multicast can
Results 1 - 10 of 13