Pattern Design

E. Gamma, R. Helm, R. Johnson, Design Patterns, Addison Wesley, Reading, Mass 1997. 

The traditional design pattern (to be described in Section 7.7.5) is recommended for air curtains with heated indoor air. The air curtain may be doublesided with horizontal supply (Fig. 7.S6a), or it may be single-sided (Fig. 7.86f ) with horizontal or vertical supply. In all cases, the air curtain is a flat jet discharged at an angle toward the pressure side of the opening. 

Fu, Y. Bryan, N. 2002. One-step transfer of diffractive structure from a designed pattern to a replica by use of a hybrid solgel film. Optics Express 10 436 142. 

The more effective strategy is to make generic designs that are built to be used in a variety of software products. Such reusable assets include code as well as models, design patterns, specifications, and even project plans. 

Section 7.4 discusses package-level decoupling. Design patterns (such as Pattern 16.15, Role Decoupling, or Pattern 16.17, Observer) provide specific techniques for decoupling. 

Design patterns are used to guide these decisions (as they can be used throughout the development process). The end result of 00 design is a collection of... 

Collaborations—sets of related actions—are introduced in Section 4.6. Section 4.7 describes how to use collaborations to describe either the encapsulated internal design of a type specification or an open design pattern. The separation of actions internal to a collaboration from those that are external to a collaboration forms the basis for effective collaboration models and is the topic of Section 4.8. 

What objects should be chosen The first draft is the static model we used for the type specification, although it is modified by design patterns to improve decoupling. 

This style of collaboration is common when each participant is one role of many played by some other object and the collaboration is part of a framework. These generic pieces of design are rarely about one object. Instead, they are about the relationships and interactions between members of groups of objects. Most of the design patterns discussed in books and bulletin boards are based on such collaborations for example, the observer pattern, which keeps many views up-to-date with one subject or proxy, which provides a local representative of a remote object or any of the more specialized design ideas that are fitted together to make any system. 

Many of the well-known design patterns are refinements applied in particular ways. The refinements we re about to discuss are, in some sense, the most primitive design patterns they are themselves combined in various ways to define the more popular design patterns. 

Will the program code be object-oriented If it is, should we choose the classes directly from the domain model or based on design patterns or following the gut instincts of the project gum ... 

User-defined models, such as design patterns, frameworks, and other architectural elements, are also defined in their own packages. The set of definitions composing each model is grouped into a package and can be used by many others. Even attribute definitions, associations, and refinement relations are defined within a package. 

The starting point for describing an architecture is to define the kinds of elements that constitute it. At the simplest level, interfaces and implementations are the elements of architecture. Beyond that, concrete implemented elements—specific kinds of buffers, synchronization primitives, coordinators, kits of parts to be assembled—can be specified as types or interfaces more-abstract ones—design patterns, patterns of connectors and components—can be described using model frameworks. It is even possible for certain architectural qualities to be quantified, in a parameterized form, on the framework level. After these elements have been defined, the architecture itself can be described using these as primitives. ... 

Use Pattern 16.8, Basic Desiga to sketch interactions between subcomponents. While drafting a basic design, also apply appropriate design patterns (see Section 16.2, Detailed Design Patterns) to improve decoupling. 

Apply generalizations after you complete the basic design. A wide variety of design patterns are directed at generalization and decouphng. Most notable are Pattern 16.15, Role Decoupling and Pattern 16.16, Factories. 

The context is action refinement making decisions that implement or put more detail into an abstract (set of) actions. This may be part of a computer system design (Pattern 16.8, Basic Design) or part of the reengineering of a business process (Pattern 14.1, Business Process Improvement) and may in particular be the engineering of the business process of which using a computer system is a part (Pattern 15.5, Make a Context Model with Use Cases). 

There is a rapidly growing literature on design patterns. Patterns enable designers to discuss their designs clearly with their colleagues and to convey sophisticated ideas rapidly. 

We believe that all programmers should have a basic vocabulary of design patterns, and we consider it inexcusable for a college now to release a computer graduate into the world without this knowledge. 

Gamma95] Gamma, E., et al. 1995. Design Patterns Elements of Reusable Object-Oriented Software. Reading, Mass. Addison Wesley Longman. 

Also, we do not cover several typical chemometrics types of analyses, such as cluster analysis, experimental design, pattern recognition, classification, neural networks, wavelet transforms, qualimetrics etc. This explains our decision not to include the word chemometrics in the title. 

The use of the terms cube, star and center points is descriptive of the design pattern, as is clear when there are p = 3 variables. In that case the points of the central composite design, shown in Table 2.5, can be represented by the points in Figure 2.3. In Table 2.5, runs 1-8 are the cube portion, runs 9-14 are the star portion, and runs 15-17 are the center points. 

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