DOCSLIB.ORG

COOTS ’01) and Systems (COOTS ’01) Ware

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
COOTS ’01) and Systems (COOTS ’01) Ware conference reports This issue’s reports are on the 6th 6th USENIX Conference on (OO) technologies and middleware will USENIX Conference on Object-Oriented Object-Oriented Technologies be required to integrate pieces of soft- Technologies and Systems (COOTS ’01) and Systems (COOTS ’01) ware. OUR THANKS TO THE SUMMARIZER: SAN ANTONIO, TEXAS Feldman went on to point out that qual- ity of service and immediacy will be Nanbor Wang JANUARY 29-FEBRUARY 2, 2001 important for next-generation mobile Summarized by Nanbor Wang applications providing networked serv- BEST STUDENT PAPER AWARDS ices, such as market monitoring, financial Yi-Min Wang of Microsoft Research, Co- transactions, and real-time information Chair of the Conference, announced the broadcasting. The heterogeneity of the best student award. Many of the accepted environment these applications must run papers were written by students this year. on presents many challenges to develop- Of them, two received identical scores, ing these applications. The diversities in and both of them were awarded the best user demographics, device-specific user student paper award. They are: interfaces and business models processes of service providers further complicate “Content-Based Publish/Subscribe the issue. with Structural Reflection” by Patrick Th. Eugster and Rachid Guerraoui of In conclusion, Feldman envisions a world the Swiss Federal Institute of Technol- of pervasive devices that are helpful, ogy, Switzerland and always on, always available, personal, friendly to use, easily authored, managed, “Multi-Dispatch in the Java Virtual secure, and reliable. It’s up to the applica- Machine: Design and Implementa- tion and middleware developers to meet tion” by Christopher Dutchyn, Paul these challenges. Lu, Duane Szafron, and Steve Brom- ling of University of Alberta, Canada; SESSION: DISTRIBUTED OBJECTS and Wade Holst of the University of TORBA: TRADING CONTRACTS FOR CORBA Western Ontario, Canada Raphaël Marvie, Philippe Merle, Jean- Marc Geib, and Sylvain Leblanc, Labora- KEYNOTE ADDRESS toire d’Informatique Fondamentale de Lille, France THE BRAVE NEW WORLD OF PERVASIVE, INVISIBLE COMPUTING Raphaël Marvie presented their work on Stu Feldman, Institute for Advanced the Trader-Oriented Request Broker Commerce, IBM T.J. Watson Research Architecture (TORBA), which is a frame- Center work and a collection of tools to auto- In this talk, Feldman pointed out that, mate the use of the CORBA Trading with their increasing popularity, portable Service. Marvie pointed out that locating computing devices have become perva- a service is the essential part of distrib- sive in our daily lives. Nevertheless, uted applications. Although the Object unlike desktop computers, there is still Management Group (OMG) already no single computing model that domi- defined the CosTrading Service, it is nates the mobile world nor should there complicated to use and does not support be one since mobile devices have very type safety. The proposed solution is to different hardware interface designs. make the Trading Service an integral part With the current trend, the number of of objects and provide tools to integrate mobile devices accessing the Web will the Trading Service into applications shortly exceed that of desktops. There are automatically. plenty of opportunities to develop TORBA defines the concept of trading mobile devices, and Object-oriented contracts in TORBA Definition Language 4 Vol. 26, No. 4 ;login: (TDL). With the help of a TDL compiler, I Safe dynamic reconfiguration of dis- resources contained in a physical space TORBA generates the code for trading tributed component systems and defines generic computational envi- EPORTS proxies, which hide the complexity of Hess also provided a performance analy- ronments for ubiquitous computing R using the OMG Trading Service and pro- sis of their component configurator devices. vide the necessary type-checking mecha- implementation. For more information, contact nisms. TDL allows application developers ONFERENCE For more information, contact [email protected]. C to specify the properties of an object and [email protected]. how the object will be offered to and SESSION: INFRASTRUCTURE queried for by its clients. Although AN ADAPTIVE DATA OBJECT SERVICE FOR PER- HBENCH:JGC – AN APPLICATION-SPECIFIC TORBA introduces some extra opera- VASIVE COMPUTING ENVIRONMENTS tions when connecting and using the BENCHMARK SUITE FOR EVALUATING JVM Christopher K. Hess, Roy H. Campbell, GARBAGE COLLECTOR PERFORMANCE trading server, a local library is used to and M. Dennis Mickunas, University of Xiaolan Zhang and Margo Seltzer, optimize its performance, and other Illinois at Urbana-Champaign; Francisco Harvard University ORB-specific optimizations can be used Ballesteros, Rey Juan Carlos, University to improve the performance further. of Madrid In this paper, Xiaolan Zhang pointed out Christopher Hess continued to describe that as Java gains popularity several Java For more information, contact their work on the adaptive data object Virtual Machine (JVM) aspects, such as [email protected]. service (DOS). He first pointed out that dynamic memory management and remote data access is the most essential garbage collection (GC), can become DYNAMIC RESOURCE MANAGEMENT AND problematic for performance sensitive AUTOMATIC CONFIGURATION OF DISTRIBUTED part in modern computing environ- applications. Understanding GC perfor- COMPONENT SYSTEMS ments. The traditional file sharing mech- mance characteristics in order to select Fabio Kon, University of São Paulo, anisms, however, are not suitable for the right GC implementation can signifi- Brazil; Tomonori Yamane, Mitsubishi many mobile devices and their comput- Electric Corp.; Christopher K. Hess, Roy ing model because they lack the neces- cantly affect overall application perfor- H. Campbell, and M. Dennis Mickunas, sary resources, such as bandwidth, mance. Traditional GC benchmarking University of Illinois at Urbana- memory, software, and CPU power to approaches may not measure the behav- Champaign decipher the raw data stored in files. To ior of targeted applications accurately Component technology is gaining popu- address the problem, Hess’s team pro- because they usually measure and com- larity in today’s computation environ- poses the adaptive DOS, which is pare the total execution times of a fixed ments. Software components increasingly inspired by the model-view-controller set of applications using different GCs. collaborate with each other, and how (MVC) model. These applications, however, may not they are configured often depends on the have the same behavior of the application hardware that they run on. Managing With DOS, data are represented and we are interested in. accessed through containers and iterators. software components is becoming com- Zhang presented their work on plicated as dependencies among compo- Containers shield the actual file represen- tations from the application. Data can HBench:JGC, which is a vector-based nents and the number of hardware benchmarking suite that characterizes platforms they can run on grows. either be remote or local. Containers can also be instantiated with filters, e.g., a application memory-usage patterns and Christopher Hess presented their work GrepContainer, to change the user’s view the GC implementation independently. It on a component configuration frame- of a data stream. Iterators provide differ- then combines both metrics to evaluate work that provides mechanisms to help: ent ways to traverse the data in contain- the performance of a GC in the bench- ers. marked application. The experiments I Automatic configuration of compo- show that HBench:JGC can predict the nent-based applications DOS is currently implemented as actual GC time within 10% for most I Intelligent, dynamic placement of CORBA service and can be linked-in applications. applications in distributed systems dynamically. XML descriptions are used I Dynamic resource management for to describe the capability of DOS objects, DISTRIBUTED GARBAGE COLLECTION FOR distributed heterogeneous environ- so a device knows what a DOS object is WIDE AREA REPLICATED MEMORY ments and how to use it. DOS is part of the Alfonso Sánchez, Luis Veiga, and Paulo I Component-code distribution using Gaia system, which is an infrastructure Ferreira, INESC/IST, Portugal either push or pull models that exports and coordinates the Alfonso Sánchez presented their work on distributed garbage collection (DGC) for July 2001 ;login: COOTS ’01 5 wide area replicated memory (WARM). latency compared to functionally equiva- For more information, contact He first identified the deficiencies of two lent handcrafted code. [email protected]. traditional DGC schemes. DGC that uses For more information, contact the message-passing model fails to con- GUEST LECTURE [email protected]. sider the existence of replicated objects. EXTREME PROGRAMMING: A LIGHTWEIGHT Conversely, DGC that uses the shared- USING ACCESSORY FUNCTIONS TO GENERALIZE PROCESS memory model does not scale well, since DYNAMIC DISPATCH IN SINGLE-DISPATCH Robert Martin, Object Mentor, Inc. it depends on sending causal information OBJECT-ORIENTED LANGUAGES Robert Martin gave a speech on a popu- using the underlying communication David Wonnacott, Haverford College lar topic – extreme programming (XP) – channels. David Wonnacott presented another and on applying XP in software projects. The authors propose a DGC algorithm paper discussing the applicability of Ken Arnold defines XP
Load more

Recommended publications
  • A Pairwise Abstraction for Round-Based Protocols
    A Pairwise Abstraction for Round-Based Protocols Lonnie Princehouse Nate Foster Ken Birman Department of Computer Science, Cornell University f lonnie, jnfoster, ken [email protected] Distributed systems are hard to program, for a number of make predictable use of the network. As such, they are reasons. Some of these reasons are inherent. System state “good neighbors” in massive multi-tenant data centers, such is scattered across multiple nodes, and is not random ac- as those that drive Amazon’s EC2. Many cloud computing cess. Bandwidth is an ever-present concern. Fault tolerance services have relaxed consistency requirements in favor of is much more complicated in a partial-failure model. This availability, and this also plays to the strengths of round- presents both a challenge and an opportunity for the pro- based protocols. gramming languages community: What should languages Our goal with CPG is to design abstractions for describ- for distributed systems look like? What are the shortcom- ing these protocols that make it easy to develop richer proto- ings of conventional languages for describing systems that cols via composition and code re-use. The fundamental unit extend beyond a single machine? seen by programmers in CPG is a pair of nodes. A protocol Prior work in this area has produced diverse solutions. in CPG is defined using a select function, which identifies The DryadLINQ [7] language expresses distributed compu- pairs of nodes to communicate in each round, and an up- tations using SQL-like queries. BLOOM [1] also follows a date function, which takes the states of the selected nodes data-centric approach, but assumes an unordered program- as input and produces their updated states after communica- ming model by default.
    [Show full text]
  • In This Day of 3D Graphics, What Lets a Game Like ADOM Not Only Survive
    Ross Hensley STS 145 Case Study 3-18-02 Ancient Domains of Mystery and Rougelike Games The epic quest begins in the city of Terinyo. A Quake 3 deathmatch might begin with a player materializing in a complex, graphically intense 3D environment, grabbing a few powerups and weapons, and fragging another player with a shotgun. Instantly blown up by a rocket launcher, he quickly respawns. Elapsed time: 30 seconds. By contrast, a player’s first foray into the ASCII-illustrated world of Ancient Domains of Mystery (ADOM) would last a bit longer—but probably not by very much. After a complex process of character creation, the intrepid adventurer hesitantly ventures into a dark cave—only to walk into a fireball trap, killing her. But a perished ADOM character, represented by an “@” symbol, does not fare as well as one in Quake: Once killed, past saved games are erased. Instead, she joins what is no doubt a rapidly growing graveyard of failed characters. In a day when most games feature high-quality 3D graphics, intricate storylines, or both, how do games like ADOM not only survive but thrive, supporting a large and active community of fans? How can a game design seemingly premised on frustrating players through continual failure prove so successful—and so addictive? 2 The Development of the Roguelike Sub-Genre ADOM is a recent—and especially popular—example of a sub-genre of Role Playing Games (RPGs). Games of this sort are typically called “Roguelike,” after the founding game of the sub-genre, Rogue. Inspired by text adventure games like Adventure, two students at UC Santa Cruz, Michael Toy and Glenn Whichman, decided to create a graphical dungeon-delving adventure, using ASCII characters to illustrate the dungeon environments.
    [Show full text]
  • Towards Rogue-Soar: Amulet of Yendor Using Its Levitation Capabilities.” Combining Soar, Curses and Micropather
    Gameplay The purpose of Rogue is “to descend into the Dungeons of Doom, defeat monsters, find treasure, and return to the surface with the Towards Rogue-Soar: amulet of Yendor using its levitation capabilities.” Combining Soar, Curses and Micropather Johnicholas Hines Advisor: Clare Bates Congdon May 17, 2010 Figure: The player (‘@’) is fighting a bat (‘B’). History Novelty I In the late 1970s, Ken Arnold designed a library (later named Rogue does not seem like a novel environment for Soar. curses[1]) to put characters at specific locations, enabling a I Discrete-Space crude form of interactive graphics. I Discrete-Time / Synchronous I Using this library, Michael Toy and Glen Wichman designed I Two-Dimensional Rogue[4]. I Single-Agent I In 1983, Rogue became popular when it was included in BSD Unix 4.2. Why should you be interested? I In 1984, Michael L. Mauldin, Guy Jacobson, Andrew Appel, and Leonard Hamey published “Rog-o-matic: A belligerent expert system”[3]. I In 1987, John Laird, Paul Rosenbloom, and Allen Newell published “Soar: An Architecture for General Intelligence”[2]. Is writing an Rog-o-matic-competitive agent easy now? Why you should be interested Rogue-Soar I/O I Rogue is a real human activity; people played it. ˆio I Rogue has been previously studied. ˆinput-link ˆspot I Because Rogue was written decades ago, it is now fast. ˆrow <0..23> I The generic I/O link could be reused for other curses-based ˆcolumn <0..79> roguelikes (ADoM, Angband, Crawl, Moria, NetHack). ˆcontents <char> I The generic I/O link could be reused for other curses-based ˆoutput-link applications (vi, emacs, lynx, w3m).
    [Show full text]
  • Cisc 7124X [*709.2X]
    Brooklyn College Department of Computer & Information Sciences CISC 7124 [*709.2X] Object-Oriented Programming 37½ hours plus conference and independent work; 3 credits Object-oriented programming concepts and techniques: data abstraction and encapsulation, classes, inheritance, overloading, polymorphism, interfaces. Introduction to and use of one or more object-oriented languages such as C++ or Smalltalk. An introduction to object-oriented design. Syllabus Procedural programming in Java Introduction to object-oriented design and programming View classes as abstract data types o Int class o Rectangle class o Stack class o Queue class Object-oriented programming in Java (Classes, Methods, Messages, and Instances) o Built-in classes . Boolean, Character, Byte, Short, Integer, Long, Float, Double, String & StringBuffer, Vector, Hashtable Interfaces and Packages Collections Inheritance Midterm exam (BinaryTree.java | SumLines.java) I/O o Echo.java o CopyTextFile.java Graphics programming with AWT (Components & Graphic & Layout managers) o TestDrawString.java o TestImage.java Event handling o TestEvent.java o TestCardLayout.java o TestImageCards.java Applets Advanced topics o Network programming with sockets o Multithreaded programming and animation . DigitClock.java . Greeting1.java . AnimatedImage.java . PingPong.java . ProducerConsumer.java . Clocks.java o JDBC and MySql o Servlet programming Textbook : The Java Tutorial: A Short Course on the Basics, 4th Edition Bibliography: Big Java: Programming and Practice, by Cay S. Horstmann, Wiley, 2002. A Programmer's Guide to Java (tm) Certification -- Khalid Azim Mughal, Rolf Rasmussen, 2000. Core Java 2, Volume I -- Fundamentals, by Cay S. Horstmann and Gary Cornell, Prentice Hall, 1999. Introduction to Programming Using Java : An Object-Oriented Approach, by David M. Arnow, Gerald Weiss, Addison-Wesley, 1998.
    [Show full text]
  • The Jini/Sup TM/ Architecture: Dynamic Services in a Flexibie Network
    9.3 The JiniTMArchitecture: Dynamic Services in a Flexible Network Ken Arnold Sun Microsystems, Inc. 1 Network Drive Burlington, MA 01 804 +01-781-442-0720 [email protected] 1. ABSTRACT capable printer, the proxy object that implements the This paper gives an overview of the JiniTM Printer interface will convert the text to PostScript and architecture, which provides a federated infra- send it to the printer. A different printing service whose printer uses PCL as a printing language will have a a proxy structure for dynamic services in a network. object that converts the text to PCL commands. Services may be large or small. The universal platform provided by the virtual machine also 1.1 Keywords means that code can be downloaded to the client if necessary. Jini, Java, networks, distribution, distributed computing This means that the client can use services whose implementations were previously unknown. If a client using 2. INTRODUCTION the PostScript capable print service has never used it before, The JiniTM architecture provides an infrastructure for the conversion code can be automatically downloaded on defining, advertising, and finding services in a network. demand by the virtual machine. Clients can talk to services Services are defined by one or more JavaTM language that they have never seen before (and may never see again) interfaces or classes. These types define a contract with the without any human intervention, such as installing drivers on clients of the service. all the systems that will use a new printing service. For example, if a service supports a printer interface it A discovery protocol lets clients and services find available supports a Printer service.
    [Show full text]
  • The Javascript Programming Language
    The JavaScript Programming Language The JavaScript Programming Language - 95 pages - Jones & Bartlett Publishers, 2009 - 2009 - 1449662676, 9781449662677 - Ray Toal, John David Dionisio The JavaScript Programming Language provides a brief introduction to the JavaScript language that is now an important component of every programmers tool box. It offers an overview of JavaScript to students interested in pursuing advanced programming skills. Clear and Concise, The JavaScript Programming Language is an excellent primer to this popular dynamic language and is ideal for use on its own or when coupled with one of Jones and Bartlett's outstanding introductory computer science texts. DOWNLOAD PDF FILE http://resourceid.org/2gcPGlG.pdf Programming with JavaScript: Algorithms and Applications for Desktop and Mobile Browsers - John David Dionisio, Ray Toal - Computers - Designed specifically for the CS-1 Introductory Programming Course, "Programming with JavaScript: Algorithms and Applications for Desktop and Mobile Browsers" introduces - 694 pages - ISBN:9780763780609 - Dec 19, 2011 DOWNLOAD PDF FILE http://resourceid.org/2gcUGGJ.pdf Web Development with JavaScript and Ajax Illuminated - Oct 22, 2010 - ISBN:9781449613242 - Computers - 497 pages - Web Development with JavaScript and AJAX teaches your students the cutting-edge techniques for web development for Web 2.0 and 3.0. Ideal for the undergraduate student delving - Richard Allen, Kai Qian, Southern Polytechnic State University Kai Qian, Lixin Tao, Xiang Fu DOWNLOAD PDF FILE http://resourceid.org/2gcPFOx.pdf JavaScript Pocket Reference - Computers - ISBN:9781449335991 - David Flanagan - JavaScript is the ubiquitous programming language of the Web, and for more than 15 years, JavaScript: The Definitive Guide has been the bible of JavaScript programmers around - 280 pages - Apr 9, 2012 - Activate Your Web Pages DOWNLOAD PDF FILE http://resourceid.org/2gcPEdr.pdf It is usable as either a programming language (that is compiled to JavaScript) or as a JavaScript library, and is designed for both uses.
    [Show full text]
  • Extreme Java G22.3033-007
    Extreme Java G22.3033-007 Session 8 - Sub-Topic 2 OMA Trading Services Dr. Jean-Claude Franchitti New York University Computer Science Department Courant Institute of Mathematical Sciences Trading Services for Distributed Enterprise Communications Dr. Jean-Claude Franchitti Page 1 Presentation Agenda • Enterprise Systems Technology Classifications • Naming, Directory, and Trading Services in a Nutshell • CORBA as a Trading Service • Microsoft Active Directory Services • Jini as a Trading Service – Jini Component Architecture – Jini Programming Model – Jini Infrastructure – Jini Class Architecture and Development Process – Jini Service Example – From the Logical Infrastructure to a Physical Solution – Physical Solution Implementation Steps • Conclusions 2 Enterprise Systems Technology Classifications Q User Interfacing Q AWT, Swing, JMF, JavaBeans Q Distributed Communications Enabling Q TCP/IP, HTTP, CORBA, RMI/IIOP, COM+ Q Services for Distributed Communications Q JNDI, CORBA Trading, JINI, Activation, JMS, JavaMail, JTA, JTS, etc. Q Systems Assurance Q Security, Reliability, Availability, Maintainability, Safety Q Data Enabling Q JDBC, RDBMs, ODBMSs Q Web Enabling Q HTML, XML, Applets, Servlets, JSPs Q Applications Enabling Q EJB, EAI 3 Page 2 Services for Distributed Communications Q Naming Q DNS, JNDI Q Directory Q NIS, NDS, LDAP, Microsoft Active Directory Q Trading Q CORBA Trading Service, JINI Q Activation Q CORBA LifeCycle Service, Java Activation Framework Q Messaging Q JMS, JavaMail, CORBA Event Service, CORBA Messaging Service,
    [Show full text]
  • Irrevocability in Games
    IRREVOCABILITY IN GAMES Interactive Qualifying Project Report completed in partial fulfillment of the Bachelor of Science degree at Worcester Polytechnic Institute, Worcester, MA Submitted to: Professor Brian Moriarty Daniel White Michael Grossfeld 1 Abstract This report examines the history and future application of irrevocability in video games. Decision making is an essential part of playing video games and irrevocability negates replayability by disallowing alternate decisions. We found that successful games with this theme exhibit irreversibility in both story and game mechanics. Future games looking to use irrevocability well must create an ownership that the player feels towards the experience by balancing these two mechanics. 2 Table of Contents IRREVOCABILITY IN GAMES .............................................................................................................. 1 Abstract .................................................................................................................................................... 2 Table of Contents ................................................................................................................................... 3 Part One: Concept of Irrevocability ................................................................................................ 4 Introduction .......................................................................................................................................................... 4 Part Two: Chronology of Irrevocability ........................................................................................
    [Show full text]
  • A Framework for Run-Time Correctness Assurance of Real- Time Systems
    University of Pennsylvania ScholarlyCommons Technical Reports (CIS) Department of Computer & Information Science January 1998 MaC: A Framework for Run-Time Correctness Assurance of Real- Time Systems Moonjoo Kim University of Pennsylvania Mahesh Viswanathan University of Pennsylvania Hanene Ben-Abdallah University of Pennsylvania Sampath Kannan University of Pennsylvania, [email protected] Insup Lee University of Pennsylvania, [email protected] See next page for additional authors Follow this and additional works at: https://repository.upenn.edu/cis_reports Recommended Citation Moonjoo Kim, Mahesh Viswanathan, Hanene Ben-Abdallah, Sampath Kannan, Insup Lee, and Oleg Sokolsky, "MaC: A Framework for Run-Time Correctness Assurance of Real-Time Systems", . January 1998. University of Pennsylvania Department of Computer and Information Science Technical Report No. MS-CIS-98-37. This paper is posted at ScholarlyCommons. https://repository.upenn.edu/cis_reports/77 For more information, please contact [email protected]. MaC: A Framework for Run-Time Correctness Assurance of Real-Time Systems Abstract We describe the Monitoring and Checking (MaC) framework which provides assurance on the correctness of program execution at run-time. Our approach complements the two traditional approaches for ensuring that a system is correct, namely static analysis and testing. Unlike these approaches, which try to ensure that all possible executions of the system are correct, our approach concentrates on the correctness of the current execution of the system. The MaC architecture consists of three components: a filter, an event recognizer, and a run-time checker. The filter extracts low-level information, e.g,, values of program variables and function calls, from the system code, and sends it to the event recognizer.
    [Show full text]
  • Rogue-Like Warum Rogue-Like?
    Rogue-like Warum Rogue-like? Michael Toy, Ken Arnold and Glenn Wichman at U.C. Santa Cruz Ascii Grafik • http://www.lcurtisboyle.com/nitros9/rogue-80.gif D&D Regeln • Basiert meist auf Dungeons and Dragons • Es wird aber sehr viel experimentiert Prozeduraler Levelaufbau Perma Death Turnbased Dungeon Crawler Sehr hoher Schwierigkeitsgrad Unintuitive Steuerung • Viele Profi-Funktionen • Oft kann man Scripte schreiben, um vieles zu automatisieren Voraussetzungen Adventure 1975 • Fantasy Setting • in einem Höhlensystem • rein textbasiert Steuerung • HJKLY(Z)UBN VI Tasten Curses Library • Entwickelt von Ken Arnold • Bibliothek zum Positionieren des Cursors und setzen von Ascii-Zeichen beliebig auf dem Bildschirm • aus Curses wurde PDCurses • und daraus NCurses (n steht für New) • Software ist zwischen allen Versionen leicht portierbar BSD Unix • Santa Cruz, California, Michael Toy & Glenn Wichman • Michael reist nach U.C. Berkeley • Entwickelt dort mit Ken Arnold das Spiel weiter • Dort wurde auch BSD Unix entwickelt, die Grundlage für Mac OS X • Das Spiel wurde Teil von BSD • Damit wurde es auf allen Unirechnern der ganzen Welt verbreitet Unterscheidung von Rogue-likes • *band • Hack-likes *band • Set Your Own Pace: There isn't a hunger clock forcing you forward (or there is a shop to restock at). • No Level Memory: Levels are not preserved when you go up and down, so you can keep getting new monsters at any given difficulty level. • Lots of Items: There are a lot of items, ranging from broken sticks to super amazing swords. Equipment upgrade paths are long, rather than being very short. • Steep Power Curve: The PC is god-like powerful by the end of the game.
    [Show full text]
  • COOTS ‘99) Sponsored by the USENIX Association Conference Web Site
    Call for Papers 5th Conference on Object-Oriented Technologies and Systems (COOTS ‘99) Sponsored by The USENIX Association Conference Web site:http://www.usenix.org/events/coots99 May 3-7, 1999 San Diego, California, USA Important Due Dates In addition to experience-centered papers, COOTS '99 Paper submissions: Nov. 6, 1998 accepts papers on a wide range of topics, including but Tutorial submissions: Nov. 6, 1998 not limited to: Notification to authors: Dec. 16, 1998 Distributed Objects Camera-ready papers: March 23, 1999 Object-oriented systems performance Security for Distributed Objects Conference Organizers Object services Program Chair Mobile objects Murthy Devarakonda, IBM T.J. Watson Research Center Object-oriented design technigues Program Committee Component based operating systems Ken Arnold, Sun Microsystems, Inc. Standard Template Library Rachid Guerraoui, Swiss Federal Institute of Technology Advanced C++ topics/examples Jennifer Hamilton, Microsoft Corporation Java and Web programming languages Doug Lea, SUNY Oswego Container technologies (e.g. Java Beans) Gary Leavens, Iowa State University Design patterns Scott Meyers, Software Development Consultant Visual J++ and other development tools Ira Pohl, UC Santa Cruz Fault tolerance Rajendra Raj, Morgan Stanley & Company New OO programming languages Doug Schmidt, Washington University Object-Oriented database systems Joe Sventek, Hewlett-Packard Labs Building distributed applications Steve Vinoski, IONA Technologies, Inc. Persistent Object Issues Werner Vogels, Cornell University
    [Show full text]
  • A Guide to the Mazes of Menace: Guidebook for Nethack
    A Guide to the Mazes of Menace: Guidebook for NetHack Eric S. Raymond (Extensively edited and expanded for 3.4) February 12, 2003 1 Introduction Recently, you have begun to find yourself unfulfilled and distant in your daily occupation. Strange dreams of prospecting, stealing, crusading, and combat have haunted you in your sleep for many months, but you aren’t sure of the reason. You wonder whether you have in fact been having those dreams all your life, and somehow managed to forget about them until now. Some nights you awaken suddenly and cry out, terrified at the vivid recollection of the strange and powerful creatures that seem to be lurking behind every corner of the dungeon in your dream. Could these details haunting your dreams be real? As each night passes, you feel the desire to enter the mysterious caverns near the ruins grow stronger. Each morning, however, you quickly put the idea out of your head as you recall the tales of those who entered the caverns before you and did not return. Eventually you can resist the yearning to seek out the fantastic place in your dreams no longer. After all, when other adventurers came back this way after spending time in the caverns, they usually seemed better off than when they passed through the first time. And who was to say that all of those who did not return had not just kept going? Asking around, you hear about a bauble, called the Amulet of Yendor by some, which, if you can find it, will bring you great wealth.
    [Show full text]