The Object Constraint Language: Precise Modeling with UML (OBT)

Jos Warmer; Anneke Kleppe

Softcover

ISBN 10: 0201379406 ISBN 13: 9780201379402

Verlag: Addison Wesley, 1998

REVOLSKATES RS ONEEl Rs One aporta a todos los patinadores la máxima calidad y comodidad, gracias a sus grandes virtudes como su guía de aluminio CNC de alta resistencia, con un diseño que la hace prácticamente irrompible y sus ruedas de 80mm y 85A.Tampoco nos podemos olvidar de la importancia del tipo de material utilizado en la bota, hecho a partir de plástico polipropileno, siendo éste muy resistente y ligero, dándonos así la confianza de que contamos con los mejores materiales y que no tendremos problemas a la hora de ejecutar todos los trucos posibles.Contamos con el Shock Absorber el cual nos ayudará a reducir los impactos. Para asegurarnos el pie al patín, el Rs One dispone de cierres de gran calidad, el de la caña de correa, el cual se adapta perfectamente al diseño de patín y el de 45º micrométrico con el que podremos ajustar la bota a nuestro gusto.Por último no podría faltar que hablásemos de los rodamientos y como no podría ser de otra forma el Rs One cuenta con unos Abec-9 Carbon.Este patín viene con freno de taco incluido para todos aquellos que lo quieran utilizar o sean principiantes.-----------Ruedas: Rv wheels 4x80 / 85ªRodamientos: Abec 9 CarbonBotin: Botin de maxima comodidad y transpirabilidad (incluye Shock Absorber)Guia: Guia de alumnino CNC 4x80, 243mm, con ajuste lateralCierres: Cierre de la caña de correa, y strap 45° micrometricoBota: Bota de maxima resistencia gracias al plastico polipropilenoFreno: Incluido

Reseña del editor:

OCL complements the UML by providing a language for formally expressing the constraints of a model, a facility useful in user models as well as in the definition of the UML itself. Jos and Anneke provide a comprehensive and much-needed reference to this formalism.--Grady Booch, Ivar Jacobson, James Rumbaugh The Object Constraint Language (OCL) is a new notational language, a subset of the industry standard Unified Modeling Language, that allows software developers to write constraints over object models. These constraints are particularly useful, as they allow a developer to create a highly specific set of rules that governs the aspect of an individual object. As many software projects today require unique and complex rules that are written specifically for business models, OCL is fast becoming an integral facet of object development. This book is a practical guide to OCL for software architects, designers, and developers. Because it is designed for ease and usability, OCL is likely to gain broad acceptance. Much care has been taken during the design of OCL to ensure that the syntax is readable and writable by the average software modeler. The straightforward nature of OCL makes it a natural candidate to supersede current constraint languages. The authors' pragmatic approach and illustrative use of examples will help application developers to get up to speed quickly with this important object modeling method. Other highlights: *Detailed instruction explains how and why to use OCL, showing its relation to UML *Illuminating case study demonstrates several UML diagrams and corresponding constraints *Provides keen insight from the primary author of the OCL standard portion of the UML 1.1 standard of the OMG 0201379406B04062001

Biografía del autor:

Jos Warmer is the primary author of the OCL standard. He is an active member of the Unified Modeling Language (UML) Revision Task Force, which defined the revisions in the UML 2.0 standard. Previously he was a member of the UML core team, where he was responsible for the development of the Object Constraint Language (OCL). The author of several books and numerous international articles, Jos is an advisor on the UML method and techniques at the De Nederlandsche Bank. Anneke Kleppe is a consultant and adviser at Klasse Objecten, which she founded in 1995 to train and coach companies on the use of object technology, modeling, and MDA. She was intensively involved in the development of the Unified Modeling Language (UML) and the new UML 2.0 standard. The author of several books, Anneke started a knowledge center for object technology at KPN Research in Leidschendam, Netherlands. She is a member of the authoring team of the OCL 2 standard, where she has a special focus on the definition of the semantics of the OCL. 0201379406AB07222003