Software For Use
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Software for Use
Author: Larry L. Constantine
language: en
Publisher: Pearson Education
Release Date: 1999-04-07
In the quest for quality, software developers have long focused on improving the internal architecture of their products. Larry L. Constantine--who originally created structured design to effect such improvement--now joins with well-known consultant Lucy A. D. Lockwood to turn the focus of software development to the external architecture. In this book, they present the models and methods of a revolutionary approach to software that will help programmers deliver more usable software--software that will enable users to accomplish their tasks with greater ease and efficiency. Recognizing usability as the key to successful software, Constantine and Lockwood provide concrete tools and techniques that programmers can employ to meet that end. Much more than just another set of rules for good user-interface design, this book guides readers through a systematic software development process. This process, called usage-centered design, weaves together two major threads in software development methods: use cases (also used with UML) and essential modeling. With numerous examples and case studies of both conventional and specialized software applications, the authors illustrate what has been shown in practice to work and what has proved to be of greatest practical value. Highlights Presents a streamlined process for developing highly usable software Describes practical methods and models successfully implemented in industry Complements modern development practices, including the Unified Process and other object-oriented software engineering approaches
Managing Software Requirements
Author: Dean Leffingwell
language: en
Publisher: Addison-Wesley Professional
Release Date: 2000
A classic treatise that defined the field of applied demand analysis, Consumer Demand in the United States: Prices, Income, and Consumption Behavior is now fully updated and expanded for a new generation. Consumption expenditures by households in the United States account for about 70% of Americaâ__s GDP. The primary focus in this book is on how households adjust these expenditures in response to changes in price and income. Econometric estimates of price and income elasticities are obtained for an exhaustive array of goods and services using data from surveys conducted by the Bureau of Labor Statistics, providing a better understanding of consumer demand. Practical models for forecasting future price and income elasticities are also demonstrated. Fully revised with over a dozen new chapters and appendices, the book revisits the original Taylor-Houthakker models while examining new material as well, such as the use of quantile regression and the stationarity of consumer preference. It also explores the emerging connection between neuroscience and consumer behavior, integrating the economic literature on demand theory with psychology literature. The most comprehensive treatment of the topic to date, this volume will be an essential resource for any researcher, student or professional economist working on consumer behavior or demand theory, as well as investors and policymakers concerned with the impact of economic fluctuations.
Software Product Lines
Author: Timo Käkölä
language: en
Publisher: Springer Science & Business Media
Release Date: 2007-02-07
Between July 1999 and June 2005 a group of European companies, research institutes, and universities executed the EUREKA-ITEA projects ESAPS, CAFÉ, and FAMILIES on the topic of product line engineering. The projects originated from the need of the industry to improve software engineering performance by organizing product development in product lines. The results obtained within the projects have been implemented in several large industries (e.g., automotive, e-business, medical systems, and mobile phones). They involve a radical shift in software construction and production. The most important research results of the projects are collected in this book. Product line engineering was already applied within industry in the 1980s and presumably earlier. In the 1980s, good architects in many telecommunications c- panies based their architectures on the ideas of David Parnas, who published on the subject of program families . They were facilitated by the CHILL language widely used by the telecommunications companies. This language deploys the same modularity principles as the Modula programming language family. Modularity is a crucial ingredient for implementing systems with a component-based architecture. Being able to compose the products of components is an important mechanism in all product line architectures. In the 1990s, the product line ideas started to gain ground in other industries. Around 1995, the company experiences reached the academia and since then people in companies and academia have collaborated widely on this subject. The ESAPS, CAFÉ, and FAMILIES projects manifest an institutionalized form of this collaboration.