object oriented analysis and design ppt

... have been defined as creation of a new object, creation of a new object from an existing object, and relocation of an existing object (Chapter 5, Section 3.3) The aim here is to illustrate the ... (stages 1 to 3) and the third update procedure (stages 4 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 ... scenario handles the update procedures due to natural changes and new demarcation descriptions occurring over public boundaries Three update procedures have been defined as creation of a new object,

Ngày tải lên: 08/08/2014, 00:23

... temporal and spatial objects into spatio-temporal objects in databases Spatio-temporal objects describe the temporal behaviour of ‘moving’ points and regions within the model Trang 4OBJECT-ORIENTED DESIGN ... based on object-oriented analysis and design methods is fundamental to creating an open GIS The STDM provides the user with a coherent computational model that encapsulates object classes, and spatio-temporal ... functions and extensibility) Communication models are often modelled using an object-oriented approach An object encapsulates state and provides a well-defined interface to the rest of the system Objects

Ngày tải lên: 08/08/2014, 00:23

... 1University of Technical Education HCMCFaculty of Information Technology o0o OBJECT-ORIENTED ANALYSIS AND DESIGN Decorator Trang 28 Ưu nhược điểm9 Các mẫu liên quan 10 Demo Trang 31 Đặt vấn ... kế thừa truyền thống. Nhược điểm: o Việc bảo trì có thể là vấn đề vì nó cung cấp rất nhiều loại Object của class chức năng Trang 219 Các mẫu liên quan Mẫu Decorator khác với Adapter, Decorator

Ngày tải lên: 25/02/2019, 22:15

... Design section.Class designFigure 3.21 Design VOPC for login use-caseFigure 3.22 Design VOPC for register use-caseFigure 3.23 Design VOPC for update personal information use-caseFigure 3.24 Design ... dayUse-case designIdentify design mechanismsAnalysis mechanism Design mechanism Implementation mechanismSecurity Web tokens Java Spring frameworkDistribution REST API Java Spring frameworkTable 3-2 Design ... conciseness and legibility – they are shown in full in the Class Design section.Figure 3.8 Design sequence diagram for Login use-caseFigure 3.9 Design sequence diagram for Register use-caseFigure 3.10 Design

Ngày tải lên: 04/05/2024, 14:22

... Trang 1UNIVERSITY OF ENGINEERING AND TECHNOLOGYJob Seeker Website PROJECT REPORT ON OBJECT-ORIENTED ANALYSIS and DESIGN Major: Computer Science Supervisor : Assoc Prof Trương ... The Candidate user have to log in successfully Trang 401.3 Identify subsystems and interfacesFigure 4.5 The Database subsystem and interfaces 1.4 Identify design mechanisms Table 4.2 Design and ... UC2.4 Database design Trang 57CHAPTER 5 USER INTERFACE DESIGN1 User interface design Objectives of designing user interface: ● User-friendly interface ● Information is presented clearly and highlight

Ngày tải lên: 04/05/2024, 14:22

... 1ĐẠI HỌC QUỐC GIA THÀNH PHỐ HỒ CHÍ MINHTRƯỜNG ĐẠI HỌC CÔNG NGHỆ THÔNG TIN ĐỒ ÁN: OBJECT-ORIENTED ANALYSIS AND DESIGN GVHD: Nguyễn Công Hoan Trang 2LỜI CÁM ƠN!Để có thể hoàn thành tốt bài tiểu ... Phố Hồ Chí Minh đã nhiệt giúp đỡ chúng em hoàn thành đồ án này! Bài viết là đề tài OBJECT-ORIENTED ANALYSIS AND DESIGN. Dù các thành viên trong nhóm đã cố gắng làm việc miệt mài và nghiêm túc, ... MỤC LỤC: Trang 4CHƯƠNG I: GIỚI THIỆULập trình hướng đối tượng (gọi tắt là OOP, từ chữ Anh ngữ object-oriented programming), hay còn gọi là lập trình định hướng đối tượng, là kĩ thuật lập trình

Ngày tải lên: 13/03/2014, 13:47

... right classes and objects and then organizing them into separate modules are largely independent design decisions The identification of classes and objects is part of the logical design of the ... expensive, and often involves shared data Many contemporary operating systems now provide direct support for currency, and so there is greater opportunity (and demand) for concurrency in object-oriented ... abstraction) Such objects are called active In a system based on an object-oriented design, we can conceptualize the world as consisting of a set of cooperative objects, some of which are active and thus

Ngày tải lên: 12/08/2014, 21:21

... In the context of object-oriented analysis and design, we define a class as follows: A class is a set of objects that share a common structure and a common behavior A single object is simply ... set of objects that share a common structure and a common behavior What isn't a class? An object is not a class, although, curiously, as we will describe later, a class may be an object Objects ... variables are private, and all methods are public In Object Pascal, both fields and operations are public and hence unencapsulated In CLOS, generic functions are public, and slots may be made

Ngày tải lên: 12/08/2014, 21:21

... either objects or operations Structured Analysis A second alternative to classical object-oriented analysis uses the products of structured analysis as a front end to object-oriented design This ... the meaning of classes and objects and their relationships As Figure 5-1 suggests, we may capture our analysis and design decisions regarding these classes and objects and their collaborations ... prefer object-oriented analysis as the front end to object-oriented design: there is simply less danger of polluting the design with preconceived algorithmic notions If you must use structured analysis

Ngày tải lên: 12/08/2014, 21:21

... design" [1] As we described in Chapters 1 and 5, the architecture of an object-oriented software system encompasses its class and object structure, organized in terms of distinct layers and ... classes and objects at a given level of abstraction • Identify the semantics of these classes and objects • Identify the relationships among these classes and objects • Specify the interface and ... Apply the classical approach to object-oriented analysis (page 155) to generate a set of candidate classes and objects Early in the life cycle, tangible things and the roles they play are good

Ngày tải lên: 12/08/2014, 21:21

... employing object-oriented methods However, because the object-object-oriented process places an emphasis upon architectural design, we tend to accelerate the deployment of architects and other designers ... and become effective class designers 7.8 The Benefits and Risks of Object-Oriented Development The Benefits of Object-Oriented Development The adopters of object-oriented technology usually ... the oriented approach can reduce development time and the size of the resulting source code [19, object-20, 21] The Risks of Object-Oriented Development On the darker side of object-oriented design,

Ngày tải lên: 12/08/2014, 21:21

... in the field, most notably Aho, Hopcroft, and Ullman [3], Kernighan and Plauger [4], Sedgewick [5], Stubbs and Webre [6], Tenenbaum and Augenstein [7], and Wirth [8] As we continue our study, we ... interplay of hardware and software may be found in Lorin [H 1972] Trang 11327 Frameworks: Foundation Class Library A major benefit of object-oriented programming languages such as C++ and Smalltalk ... autonomous and relatively static objects In the current problem, two very different issues dominate: the desire for an adaptable architecture that offers a range of time and space alternatives, and

Ngày tải lên: 12/08/2014, 21:21

... model, the Object Management Group common object request broker (CORBA), and object-oriented extensions to SQL (SQL3), as well as vendor-specific solutions such as Microsoft’s object linking and embedding ... logical objects Those that refer to the way data are actually stored in the system are called physical objects" [10] In a process not unlike that of object-oriented design, database designers ... the full power of an object-oriented database, but who from Trang 6time to time need to save the state of structures such as queues and sets, and then reconstruct these objects in a later invocation

Ngày tải lên: 12/08/2014, 21:21

... between knowledge sources and assumptions than between knowledge sources and letters Design of the Blackboard Objects Let's complete our design of the Sentence, Word, and CipherLetter classes, ... forward- and backward-chaining in rule-based systems may be found in Barr and Feigenbaum U 19811; Brachman and Levesque U 19851; Hayes Roth, Waterman, and Lenat U 19831; and Winston and Hom [G ... blackboard object and a kind of dependent In addition to its inherited behaviors, each cipher-letter object has a value (such as the ciphertext letter H) together with a collection of assumptions and

Ngày tải lên: 12/08/2014, 21:21

... current definition, Ada is object-based, not object-oriented However, Ada9x adds object-oriented programming extensions to the original language definition Trang 13Object-Oriented Programming Languajes ... ModPascal Neon New Flavors NIL O-CPU OakLisp Oberon Object Assembier Object Cobol Object Lisp Object Logo Object Oberon Object Pascal Objective-C ObjVLisp OOPC OOPS+ OPAL Orbit Orient84/K ... information for most of them object-Saunders [23] provides a survey of over 80 different object-based and object-oriented programming languages He suggests that object-oriented programming languages

Ngày tải lên: 12/08/2014, 21:21

... set of objects.Objects are responsible for knowing and doing certain things Objects collaborate to carry out their responsibilities Programs organized by classes, inheritance hierarchies and subsystems ... people model the world with "objects" • objects • classes • relationships between objects • relationships between classes Trang 16Advantages of object-oriented software development • more ... an object, anyway?Programming language view An object-oriented system is characterized by • data abstraction • inheritance • polymorphism by late-binding of procedure calls Trang 12Heart of Object-Oriented

Ngày tải lên: 24/10/2014, 00:42

... (transverse rings and frames and longitudinal stringers) is relatively rigid and is everywhere tightly fastened to the skin, then each skin panel is restrained along its Trang 2ANALYSIS AND DESIGN OF ... fuselage Trang 10ANALYSIS AND DESIGN OF FLIGHT VEHICLE STRUCTURES analysis, parallel to that of Art Al7.6, is to be found in reference 1, pp 4+10 A more elaborate two-dimensional analysis is shown ... Plates and Shells", McGraw-Hill, N ¥., 1940 Den Hartog, J P "Advanced Strength of Materials", McGraw-Hill, N Y., 1952 Sechler, BE and Dunn, L “Airplane Struc- tural Analysis and Design",

Ngày tải lên: 07/08/2014, 10:20

... For the Bragier rivet type use C = 3 and for counter-sunk or dimpled rivets use C=l1 au Trang 7ANALYSIS AND DESIGN OF FLIGHT VEHICLE STRUCTURES Figs C7.18 and C7,.19 show a plot of equation C7.22 ... stringer Ffop, thus giving, Trang 5ANALYSIS AND DESIGN OF FLIGHT VEHICLE STRUCTURES Some early experiments by Newell indicated the constant 1.90 was too high and for light stringers a value of ... (Refs 9 and 10) A rather recent study was carried out by Semonian and Peterson (Ref 11), which is reviewed and simplified somewhat by Gerard in (Ref 2) The results as given in (Refs 11 and 2}

Ngày tải lên: 07/08/2014, 10:20

... geometry and properties of Fig C11.48 and the engineering theory of bending, we find the primary internal stresses to be, Trang 3 ANALYSIS AND DESIGN OF F 2a Check top skin panel for four and k ... 1s just the opposite and can thus be conservatively” ignored, or evaluated tf desired From a time-saving standpoint, in pre- ‡minary design, an arbitrarily large value of % and an angle of diagonal ... transport, bomber and other cargo carrying aircraft The longeron type structure 1s more efficient and suitable where a large number "quick-access" panels and doors and other "cut-outs"

Ngày tải lên: 07/08/2014, 10:20

... content proposal, please refer to Mirbel and Ralyté (2006) and Mirbel (2006) In this section we presented the method-chunk model and the reuse-frame structure and content They allow support of the ... the same direct father node and the classification rank of c1 is inferior to the sification rank of c2 c1 is next to c2 if c1 and c2 have the same direct father node and the classification rank ... method engineering to provide efficient classification and re-trieving techniques to store and retrieve method fragments Classification and retrieving techniques are currently based on structural

Ngày tải lên: 07/08/2014, 11:22