... transaction However, for the enquiry to stand any chance o f reaching a successful conclusion, it must eventually be processed by an instance of a class (in object- oriented terms a specific 'object' ), ... several candidates for 'handling instance' on Domain Spotter's candidate list, the Dialogue Manager, in the system's next turn, will prompt the user to choose one of them (and, of course, accept any ... departure, the destination, the day of departure and the departure time, and if a final check with the instance's database indicates that the combination of data is valid, then the system can...
... đồ Biểu đồ thành phần Biểu đồ cài đặt Reference Slides of Prof Pascal Molli, Loria, France Objectoriented Design, JEDI, Sun Microsystem ... Biểu đồ cộng tác Xác định đối tượng Quan hệ đối tượng Thông điệp thứ tự gửi thông điệp đối tượng Biểu đồ cộng tác Biểu đồ lớp Xác định lớp Xác định quan hệ lớp Xác định thuộc tính Xác ... Trò chơi xúc xắc Người chơi tung 10x2 xúc xắc Nếu tổng điểm xuất ghi 10 điểm Số điểm tung ván ghi vào bảng điểm Phân tích yêu cầu Xác...
... observation on a particular variable is known, and the sequence of observations provides the occurrence of a real-world phenomenon (Table 2. 2) 12 OBJECT- ORIENTEDDESIGN FOR TEMPORAL GIS Table 2.2 Main ... background to object orientation by summarising the efforts in the areas of object- oriented methods, temporal databases and version management approaches The object- oriented analysis design proposed ... homogeneous and isotropic, with an existence fully independent of any entity it might 10 OBJECT- ORIENTEDDESIGN FOR TEMPORAL GIS Table 2. 1 Main characteristics of the space-dominant view contain...
... categories The class Participant specifies information about participants in patterns Methods of these participants are specified by the class Operation The class Participant and the class Operation ... H Ammar, Pattern -Oriented Analysis and Design: Composing Patterns to Design Software Systems, Addison Wesley, U.S, August 28 , 20 03 [2] E Gamma, R Helm, R Johnson, J Vlissides, Design Patterns ... Protégé-Frames and ProtégéOWL editors Protégé ontology can be exported into a variety of formats including RDF(S), OWL, and XML Schema We specified objectorienteddesign patterns of Gamma et al [2] A design...
... Object- OrientedDesign • Now we can extend our discussion of the design of classes and objects • Chapter focuses on: software development activities determining the classes and objects ... a software design determines: how the solution can be broken down into manageable pieces what each piece will • An object- orienteddesign determines which classes • Low level design details ... 6-9 Identifying Classes and Objects • The core activity of object- orienteddesign is determining the classes and objects that will make up the solution • The classes may be part of a class library,...
... than as language extensions The evaluation consists of two parts: In the first part we compare performance to an existing Java-based actor language In the second part we report on experience implementing ... 2.2 Scala 2. 2.1 Higher-Order Functions 2.2 .2 Case Classes and Pattern Matching 2. 2.3 Partial Functions 10 Programming ... iterators blocking-style code is CPS-transformed by the C# compiler 2. 8 Timber Timber [BCJ+ 02] is an object- oriented and functional programming language designed for real-time embedded systems...
... novel objectoriented model for a video database is proposed in (Oomoto and Tanaka 1993) The model is schemaless, and includes inheritance by inclusion as an inheritance mechanism This means that ... occurrences of instances of atomic types In Fig 12, MyFigure has a reference to an instance of Image In Fig 13, MyAudio has a reference to an instance of Audio, MyVideo to an instance of Video, and MyStext-1, ... hierarchy as objects are instantiated and their attribute values set This discussion refers to Fig 12 and 13, where object instances of type X are denoted as MyX and the arrows are from objects to...
... Inheritance and Interfaces - 24 6 Chapter 10 - Designing with Inheritance and Interfaces: A Case Study - 28 1 Chapter 11 - Patterns: Proven Designs - 315 Chapter 12 - Designing Concurrent Objects ... world Objects within an object- oriented system may still transform input data to output data, but this is not the only possible way to organize an object- oriented program From an object- oriented ... interface Anything that a superclass object can do, a subclass object can also For example, if class A is a subclass of class B, then an A object can anything a B object can In this practical - 42 -...
... semantics to objectoriented analysis and design of spatio-temporal data models in GIS Chapter considers the concepts behind the object- oriented approach CHAPTER THREE Object- oriented analysis and ... background on object orientation summarises the chronological developments from object- oriented programming languages to object- orienteddesign methods, and finally to object- oriented analysis methods ... Karlqvist, Lunqvist and Snickars (1975), Lenntorp (1976), Pred 26 OBJECT- ORIENTEDDESIGN FOR TEMPORAL GIS (1977), Carlstein, Parkes and Thrift (1978), Parkes and Thrift (1980) and Golledge and Stimson...
... characterise OBJECT- ORIENTED ANALYSIS AND DESIGN 37 the dynamic nature of objects within an object- oriented model At any point in time, the state of anobject involves all properties of this object (usually ... processes within an object- oriented analysis and design method cannot be described in a ‘cookbook’ His proposal for an object- oriented development embodies purpose, products and activities which ... specifies an ODM (object data model), ODL (object definition language), OQL (object query language) as well as C++ and Smalltalk language bindings for OODBMS Conforming to the ODMG-93 standard, an object- oriented...
... need for version management of all instances that can belong to a space-time path This implies the analysis and design of a version management mechanism in order to manage change over time within ... offers much practical guidance, and implies the 45 46 OBJECT- ORIENTEDDESIGN FOR TEMPORAL GIS feasibility of applying object- oriented methods to the problem of handling space and time in GIS This ... sequence of states and events in which change can occur over its states A change can result from the effects of human activity due to an alteration, modification or transformation of an entity state...
... can change its position on the ground (see Figure 5.1) As the boundary changes its position, a transfer of territory from one authority to another will occur, causing changes in sovereignty and, ... during the lifespans of public boundaries On the other hand, states tell us what has changed, is changing, or will be changed during the lifespan of public boundaries The main advantage of this ... draft and new states is spatial generalisation, which demands procedures for line simplification (capability constraint) The Ordnance Survey uses different scales for 60 OBJECT- ORIENTED DESIGN...
... STDM Finally, the analysis and design of the STDM using an object- oriented method has raised issues in version management Having a system with several instances of several object classes connected ... play an important role in the update scenario Figure 5.11 illustrates an example with three update procedures: creation of a new object, creation of a new object from an existing object, and relocation ... the STDM: creation of a new object, creation of a new object from an existing object, and relocation of an existing object These update procedures are due to valid changes that have occurred over...
... revolutionary state 92 OBJECT- ORIENTEDDESIGN FOR TEMPORAL GIS Stages 4, 5: relocation of an existing object The last update procedure in the STDM involves the relocation of an existing object The same ... (McCormick, Defanti and Brown, 1987) so users need to have a natural acuity for recognising and interpreting visual patterns (Fedra, 19 92; Buttenfield, 1993), and an intuitive understanding of large ... procedure (stages to 3) and the third update procedure (stages and 5) Stages 1, 2, 3: creation from an existing object Suppose the user has selected as ground feature the Barnwell Road object, as shown...