G eant 4 is a toolkit for simulating the passage of particles through matter. It includes a complete range of functionality including tracking, geometry, physics models and hits. The physics processes offered cover a comprehensive range, including electromagnetic, hadronic and optical processes, a large set of long-lived particles, materials and elements, over a wide energy range starting, in some cases, from 250 eV and extending in others to the TeV energy range. It has been designed and constructed to expose the physics models utilised, to handle complex geometries, and to enable its easy adaptation for optimal use in different sets of applications. The toolkit is the result of a worldwide collaboration of physicists and software engineers. It has been created exploiting software engineering and object-oriented technology and implemented in the C++ programming language. It has been used in applications in particle physics, nuclear physics, accelerator design, space engineering and medical physics.

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Geant4—a simulation toolkit

In The Unified Modeling Language User Guide, the original developers of the UML--Grady Booch, James Rumbaugh, and Ivar Jacobson--provide a tutorial to the core aspects of the language in a two-color format designed to facilitate learning. Starting with a conceptual model of the UML, the book progressively applies the UML to a series of increasingly complex modeling problems across a variety of application domains. This example-driven approach helps readers quickly understand and apply the UML. For more advanced developers, the book includes a learning track focused on applying the UML to advanced modeling problems.With The Unified Modeling Language User Guide, readers will:Understand what the UML is, what it is not, and why it is relevant to the development of software-intensive systemsMaster the vocabulary, rules, and idioms of the UML in order to "speak" the language effectivelyLearn how to apply the UML to a number of common modeling problemsSee illustrations of the UML's use interspersed with use cases for specific UML features, andGain insight into the UML from the original creators of the UML.

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The Unified Modeling Language User Guide

Geant4 - A Simulation Toolkit

Given the central role that software development plays in the delivery and application of information technology, managers are increasingly focusing on process improvement in the software development area. This demand has spurred the provision of a number of new and/or improved approaches to software development, with perhaps the most prominent being object-orientation (OO). In addition, the focus on process improvement has increased the demand for software measures, or metrics with which to manage the process. The need for such metrics is particularly acute when an organization is adopting a new technology for which established practices have yet to be developed. This research addresses these needs through the development and implementation of a new suite of metrics for OO design. Metrics developed in previous research, while contributing to the field's understanding of software development processes, have generally been subject to serious criticisms, including the lack of a theoretical base. Following Wand and Weber (1989), the theoretical base chosen for the metrics was the ontology of Bunge (1977). Six design metrics are developed, and then analytically evaluated against Weyuker's (1988) proposed set of measurement principles. An automated data collection tool was then developed and implemented to collect an empirical sample of these metrics at two field sites in order to demonstrate their feasibility and suggest ways in which managers may use these metrics for process improvement. >

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A metrics suite for object oriented design

Prior research has provided valuable insights into how and why employees make a decision about the adoption and use of information technologies (ITs) in the workplace. From an organizational point of view, however, the more important issue is how managers make informed decisions about interventions that can lead to greater acceptance and effective utilization of IT. There is limited research in the IT implementation literature that deals with the role of interventions to aid such managerial decision making. Particularly, there is a need to understand how various interventions can influence the known determinants of IT adoption and use. To address this gap in the literature, we draw from the vast body of research on the technology acceptance model (TAM), particularly the work on the determinants of perceived usefulness and perceived ease of use, and: (i) develop a comprehensive nomological network (integrated model) of the determinants of individual level (IT) adoption and use; (ii) empirically test the proposed integrated model; and (iii) present a research agenda focused on potential pre- and postimplementation interventions that can enhance employees' adoption and use of IT. Our findings and research agenda have important implications for managerial decision making on IT implementation in organizations.

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Technology Acceptance Model 3 and a Research Agenda on Interventions

In this paper, oxymoron is discussed. An oxymoron is not a bovine of meager intelligence, nor is it a chemical compound with two covalently bound oxygen atoms. Rather, an oxymoron is a figure of speech that combines two seemingly contradictory terms and unites them in an apparent paradox. This paper focuses specifically on the oxymoron of agile software architecture.

An Architectural Oxymoron

Will the coming years bring the dawn of software's golden age or an ever-worsening nightmare of disasters and cutbacks? The author explains why either outcome, or both, are possible. He discusses improvements such as new application development tools and advanced hardware technology. He then focuses on the Year 2000 problem in contrast.

A tale of two futures [software industry]

From the Publisher:
Designed for software professionals who are concerned about the success of their object-oriented projects, this volume covers all aspects of the Booch method and how a complete method must address a model's notation and semantics as well as a proccess for creating that model

Best of Booch: Designing Strategies for Object Technology

Every line of code represents a moral decision; every bit of data collected, analyzed, and visualized has moral implications. The Web extra at http://youtu.be/iY7mU1mtQ08 is an audio podcast of author Grady Booch reading his On Computing column, in which he discusses how every line of code represents a moral decision and how every bit of data collected, analyzed, and visualized has moral implications.

The Human and Ethical Aspects of Big Data

All complex systems fail, by some measure of the word "fail," with consequences ranging from benign to catastrophic. This article examines the process of to triage in the face of a failing system. Software-intensive systems bring their own wickedness to the world because they have an essential complexity. They bring fundamental challenges to discrete systems, since they exhibit noncontinuous behavior, often embody a combinatorial explosion of state space, and may be corrupted by unexpected external events. Furthermore, as a discipline we lack the mathematical tools and as humans we fall short of the intellectual capacity to model the behavior of ultralarge discrete systems.Furthermore, discrete software-intensive systems often exhibit nonlinearity, broken symmetry, and, due to nonholonomic constraints, what is called localized transient anarchy.

Grady Booch

Papers

An Architectural Oxymoron

A tale of two futures [software industry]

Best of Booch: Designing Strategies for Object Technology

The Human and Ethical Aspects of Big Data

Systems Architecture