SysML extends UML with powerful systems engineering capabilities for modeling a far wider spectrum of systems, and effectively capturing all aspects of a system?s design. Now, there?s a go-to reference for everyone who wants to start creating accurate and useful system models with SysML. Drawing on his pioneering experience creating models for Lockheed Martin and NASA, Lenny Delligatti illuminates SysML?s core components, and shows how to use them even under tight deadlines and other constraints. You needn?t know all of SysML to create effective models: SysML Distilled quickly teaches what you do need to know, and helps you deepen your knowledge incrementally as the need arises. Coverage includes: How SysML extends and improves UML, and how to immediately put it to practical use How to use SysML as a foundation for Model-Based System Engineering (MBSE) or Model-Based Engineering (MBE) What to know before you start an SysML modeling project How to use key SysML diagrams for block definitions, internal blocks, use cases, activities, sequences, state machines, parametrics, requirements, and packages How to use allocations to define cross-cutting relationships And much more ? including appendices presenting complete SysML notation, identifying changes between SysML versions, and identifying authoritative sources for more information Product Description The Systems Modeling Language (SysML) extends UML with powerful systems engineering capabilities for modeling a wider spectrum of systems and capturing all aspects of a system?s design. SysML Distilled is the first clear, concise guide for everyone who wants to start creating effective SysML models. (Drawing on his pioneering experience at Lockheed Martin and NASA, Lenny Delligatti illuminates SysML?s core components and provides practical advice to help you create good models and good designs. Delligatti begins with an easy-to-understand overview of Model-Based Systems Engineering (MBSE) and an explanation of how SysML enables effective system specification, analysis, design, optimization, verification, and validation. Next, he shows how to use all nine types of SysML diagrams, even if you have no previous experience with modeling languages. A case study running through the text demonstrates the use of SysML in modeling a complex, real-world sociotechnical system. Modeled after Martin Fowler?s classic UML Distilled, Delligatti?s indispensable guide quickly teaches you what you need to know to get started and helps you deepen your knowledge incrementally as the need arises. Like SysML itself, the book is method independent and is designed to support whatever processes, procedures, and tools you already use. Coverage Includes Why SysML was created and the business case for using it Quickly putting SysML to practical use What to know before you start a SysML modeling project Essential concepts that apply to all SysML diagrams SysML diagram elements and relationships Diagramming block definitions, internal structures, use cases, activities, interactions, state machines, constraints, requirements, and packages Using allocations to define mappings among elements across a model SysML notation tables, version changes, and sources for more information Features + Benefits The most practical introduction to SysML Covers all essential diagrams: block definitions, internal blocks, use cases, activities, sequences, state machines, parametrics, requirements, and packages How to use SysML to move towards full-fledged Model-Based Systems Engineering (MBSE) Foreword by Rick Steiner xvii Foreword by Richard Soley xix Preface xxv Acknowledgments xxxi About the Author xxxiii Chapter 1: Overview of Model-Based Systems Engineering 1 1.1 What Is MBSE? 2 1.2 The Three Pillars of MBSE 4 1.3 The Myth of MBSE 9 Chapter 2: Overview of the Systems Modeling Language 11 2.1 What SysML Is?and Isn?t 11 2.2 Yes, SysML Is Based on UML?but You Can Start with SysML 13 2.3 SysML Diagram Overview 14 2.4 General Diagram Concepts 17 Chapter 3: Block Definition Diagrams 23 3.1 Purpose 23 3.2 When Should You Create a BDD? 24 3.3 The BDD Frame 24 3.4 Blocks 26 3.5 Associations: Another Notation for a Property 44 3.6 Generalizations 49 3.7 Dependencies 52 3.8 Actors 53 3.9 Value Types 55 3.10 Constraint Blocks 57 3.11 Comments 59 Chapter 4: Internal Block Diagrams 63 4.1 Purpose 63 4.2 When Should You Create an IBD? 64 4.3 Blocks, Revisited 64 4.4 The IBD Frame 65 4.5 BDDs and IBDs: Complementary Views of a Block 66
Domain-Driven Design (DDD) software modeling delivers powerful results in practice, not just in theory, which is why developers worldwide are rapidly moving to adopt it. Now, for the first time, there´s an accessible guide to the basics of DDD: What it is, what problems it solves, how it works, and how to quickly gain value from it. Concise, readable, and actionable, Domain-Driven Design Distilled never buries you in detail-it focuses on what you need to know to get results. Vaughn Vernon, author of the best-selling Implementing Domain-Driven Design, draws on his twenty years of experience applying DDD principles to real-world situations. He is uniquely well-qualified to demystify its complexities, illuminate its subtleties, and help you solve the problems you might encounter. Vernon guides you through each core DDD technique for building better software. You´ll learn how to segregate domain models using the powerful Bounded Contexts pattern, to develop a Ubiquitous Language within an explicitly bounded context, and to help domain experts and developers work together to create that language. Vernon shows how to use Subdomains to handle legacy systems and to integrate multiple Bounded Contexts to define both team relationships and technical mechanisms. Domain-Driven Design Distilled brings DDD to life.
In Large-Scale Scrum, Craig Larman and Bas Vodde offer the most direct, concise, actionable guide to reaping the full benefits of agile in distributed, global enterprises. Larman and Vodde have distilled their immense experience helping geographically distributed development organizations move to agile. Going beyond their previous books, they offer today´s fastest, most focused guidance: ´´brass tacks´´ advice and field-proven best practices for achieving value fast.
With the same insight and authority that made their book The Unix Programming Environment a classic, Brian Kernighan and Rob Pike have written The Practice of Programming to help make individual programmers more effective and productive. This book is full of practical advice and real-world examples in C, C++, Java, and a variety of special-purpose languages. Kernighan and Pike have distilled years of experience writing programs, teaching, and working with other programmers to create this book. Anyone who writes software will profit from its principles and guidance.
´´Kent is a master at creating code that communicates well, is easy to understand, and is a pleasure to read. Every chapter of this book contains excellent explanations and insights into the smaller but important decisions we continuously have to make when creating quality code and classes.´´ - Erich Gamma, IBM Distinguished Engineer ´´Many teams have a master developer who makes a rapid stream of good decisions all day long. Their code is easy to understand, quick to modify, and feels safe and comfortable to work with. If you ask how they thought to write something the way they did, they always have a good reason. This book will help you become the master developer on your team. The breadth and depth of topics will engage veteran programmers, who will pick up new tricks and improve on old habits, while the clarity makes it accessible to even novice developers.´´ - Russ Rufer, Silicon Valley Patterns Group ´´Many people don´t realize how readable code can be and how valuable that readability is. Kent has taught me so much, I´m glad this book gives everyone the chance to learn from him.´´ - Martin Fowler, chief scientist, ThoughtWorks ´´Code should be worth reading, not just by the compiler, but by humans. Kent Beck distilled his experience into a cohesive collection of implementation patterns. These nuggets of advice will make your code truly worth reading.´´ - Gregor Hohpe, author of Enterprise Integration Patterns ´´In this book Kent Beck shows how writing clear and readable code follows from the application of simple principles. Implementation Patterns will help developers write intention revealing code that is both easy to understand and flexible towards future extensions. A must read for developers who are serious about their code.´´ - Sven Gorts ´´ Implementation Patterns bridges the gap between design and coding. Beck introduces a new way of thinking about programming by basing his discussion on values and principles.´´ - Diomidis Spinellis, author of Code Reading and Code Quality Software Expert Kent Beck Presents a Catalog of Patterns Infinitely Useful for Everyday Programming Great code doesn´t just function: it clearly and consistently communicates your intentions, allowing other programmers to understand your code, rely on it, and modify it with confidence. But great code doesn´t just happen. It is the outcome of hundreds of small but critical decisions programmers make every single day. Now, legendary software innovator Kent Beck-known worldwide for creating Extreme Programming and pioneering software patterns and test-driven development-focuses on these critical decisions, unearthing powerful ´´implementation patterns´´ for writing programs that are simpler, clearer, better organized, and more cost effective. Beck collects 77 patterns for handling everyday programming tasks and writing more readable code. This new collection of patterns addresses many aspects of development, including class, state, behavior, method, collections, frameworks, and more. He uses diagrams, stories, examples, and essays to engage the reader as he illuminates the patterns. You´ll find proven solutions for handling everything from naming variables to checking exceptions. This book covers The value of communicating through code and the philosophy behind patterns How and when to create classes, and how classes encode logic Best practices for storing and retrieving state Behavior: patterns for representing logic, including alternative paths Writing, naming, and decomposing methods Choosing and using collections Implementation pattern variations for use in building frameworks
For generations of software managers and team members who want their projects to succeed, Peopleware has earned a place on the short list of indispensable reading. Authors Tom DeMarco and Timothy Lister were the first to recognize the centrality of managing human beings in the software development process -- and to offer profound insights into doing that well. Software legend Joel Spolsky described this book as the ? Anti-Dilbert Manifesto?: it combines humor and wisdom to give practical advice that every software manager and developer can benefit from. Now, for the first time in 13 years, DeMarco and Lister have updated this legendary classic. In addition to thoughtful updates and reorganization wherever necessary, they?ve added seven valuable new chapters on today?s most important challenges in software project management. Reflecting lengthy personal experience and deep wisdom, DeMarco and Lister bring new insights to: Leadership Managing generational differences Coordinating distributed teams Leading diverse Teams Managing risk Running more effective meetings Using email more effectively Product Description Few books in computing have had as profound an influence on software management as Peopleware . The unique insight of this longtime best seller is that the major issues of software development are human, not technical. They?re not easy issues; but solve them, and you?ll maximize your chances of success. ?Peopleware has long been one of my two favorite books on software engineering. Its underlying strength is its base of immense real experience, much of it quantified. Many, many varied projects have been reflected on and distilled; but what we are given is not just lifeless distillate, but vivid examples from which we share the authors? inductions. Their premise is right: most software project problems are sociological, not technological. The insights on team jelling and work environment have changed my thinking and teaching. The third edition adds strength to strength.? ? Frederick P. Brooks, Jr., Kenan Professor of Computer Science, University of North Carolina at Chapel Hill, Author of The Mythical Man-Month and The Design of Design ?Peopleware is the one book that everyone who runs a software team needs to read and reread once a year. In the quarter century since the first edition appeared, it has become more important, not less, to think about the social and human issues in software develop¿ment. This is the only way we?re going to make more humane, productive workplaces. Buy it, read it, and keep a stock on hand in the office supply closet.? ?Joel Spolsky, Co-founder, Stack Overflow ?When a book about a field as volatile as software design and use extends to a third edition, you can be sure that the authors write of deep principle, of the fundamental causes for what we readers experience, and not of the surface that everyone recognizes. And to bring people, actual human beings, into the mix! How excellent. How rare. The authors have made this third edition, with its additions, entirely terrific.? ?Lee Devin and Rob Austin, Co-authors of The Soul of Design and Artful Making For this third edition, the authors have added six new chapters and updated the text throughout, bringing it in line with today?s development environments and challenges. For example, the book now discusses pathologies of leadership that hadn?t previously been judged to be pathological; an evolving culture of meetings; hybrid teams made up of people from seemingly incompatible generations; and a growing awareness that some of our most common tools are more like anchors than propellers. Anyone who needs to manage a software project or software organization will find invaluable advice throughout the book. Features + Benefits The legendary ?anti-Dilbert? book on managing software projects by focusing on people - now fully updated for today?s projects and methodologies In this classic book, the authors demonstrate the major human - not technical - issues of software development and give challenging, but successful answers to the questions of software managers and developers. For this third edition, the authors have added six new chapters and updated the text throughout, bringing it in line with today´s development environments and challenges. The book now discusses pathologies of leadership that hadn´t previously been judged to be pathological; an evolving culture of meetings; hybrid teams made up of people from seemingly incompatible