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B. Oestereich, Developing Software unth UML, Addison Wesley Longman, Reading, Mass 2002. 

Muller, H. J. 1975. Beitrag zum thenia der luttfuhrung in tierproduktions-anlagen. L.uft uml Kdltetechmk, no. 2. 

The operational window of a fluidised bed process is defined by the minimum fluidisation velocity, Uml, at which a settled bed of adsorbent beads starts to fluidise and the terminal velocity ( /t) at which the bed stabilises and adsorbent beads are entrained from the bed. 

Objects, components, and frameworks with UML the Catalysis approach / Desmond Francis D Souza, Alan Cameron Wills. 

Object-oriented methods (Computer science) 2. UML (Computer science) I. Wills, Alan Cameron. II. Title. III. Series. 

UML) now standardized by the Object Modeling Group (OMG). Both authors have been... 

Catalysis has been central to the component-specification standards defined by Texas Instruments and Microsoft, the CBD-96 standards from Tl/Sterling, and services and products from Platinum Technology it has been adopted by several companies as their standard approach for UML-based development. It fits the needs of Java, JavaBeans, COM+, and CORBA development and supports the approach of RM-ODP. It also supports systematic development based on use cases. 

Don t read it all in one night. If you think this is a bit long for a Preface, wait until you see the rest of the book. What background will you need Some basic knowledge of UML, OMT, Booch, or Fusion modeling will help the succinct UML summary by Martin Fowler is quite readable [Fowler98], If you already know UML, take an early look at the UML perspective in the Appendixes. 

Two different navigation paths may refer to the same object for example, the object referred to as my boss may be the same object as that referred to as my friend s wife. In Figure 2.2, session-5.instructor and session-32.instructor both refer to the same object, laura. If both names refer to the same object, they both see the same attribute values and changes to those values, x = y means x and y refer to same object x <> y means that x and y refer to different objects. These symbols are based on the Object Constraint Language (OCL) in UML in C++ and Java we d use == and =. 

These are also based on the UML s Object Constraint Language. 

Well-written postconditions can be used as the basis for verification and testing. For this purpose, we should write the postconditions in a more precise style as test (Boolean) functions. You can use the Boolean expression part of your favorite programming language we will use a general syntax from UML called Object Constraint Language (OCL). It translates readily to most programming languages but is more convenient for specification. 

The use case approach also defines two relationships between use cases—extends and uses—to help structure and manage the set of use cases. These relationships are defined in UML as follows. 

UML 1.1 makes mention of refinement, with a default notation that uses a stereotype on the generic dependency arrow. Refinement is central to Catalysis in our presentation here, we have chosen to highlight refinement with a distinguished arrow. 

We have found that temporal logic handles more general cases in a very concise form. The UML activity diagram is another alternative. 

UML has a relationship between packages called dependency, which can be annotated as an import another relationship is called generalization. In Catalysis you must permit and track dependencies, by explicitly deciding to import a package, before you can use any of its contents. This approach is very much like the import and include schemes in programming languages. A general dependency is inferred after the fact, whereas an import is decided beforehand. 

A concrete package is one documented in the UML syntax concrete import is the relationship whereby statements of one concrete package are adopted as part of another. However, we sometimes work from a common set of terms that was never documented as a concrete UML package—for example, some telecommunications standards. 

For example, one of our clients in the telecommunications industry recently built a business model. In that world, all the manufacturers and operators adhere to several standards. So some of the client s model was determined by what the standards say and will have to be updated whenever the standards change in other words, it imports the industry-standard virtual packages. So our client s business model contains definitions of the standardized concepts (or at least its interpretations of them) along with all its own definitions. Because there were not yet arty UML versions of these standards, we simply consider the standards documents to be part of an implicit virtual package and proceed to virtually import it. 

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