Thesis full text PDF - Politecnico di Milano

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4.5.5.2. Navigation link and Action LinkThey allow to define the navigation flow of the Web applications and govern the Action Mappingsof the controller. Navigation links establish which Action to call after a request (JSP page) whileAction links establish which view (JSP page) to call after the termination of the Action. In plainwords these links define the associations among JSP pages and Action Mappings. In particularSuccess Links and Failure Links allow to define the success path and the failure path for theaction unit.44
5. MVC-WebFlow Ajax tool5.1. Objectives and contextMVC-WebFlow project deals with the development of an online editing tool to ease thespecification of MVC-WebFlow models. The main purpose of the MVC-Webflow tool is to lower thebarrier to the adoption of Web Engineering techniques in the development practices. The tool willallow to model applications with a MVC approach adapted for the Web (namely, the Model 2design framework), which is widely adopted by developers and has some valid implementationcounterparts (e.g., Jakarta Struts). This design tool will provide both solid model-driven designfeatures typical of Web Engineering and quick application evolution thanks to a Web basedinterface that does not require a rigid development process. The final aim of the tool is a basic onthe fly code generation on Model 2 reference architectures.The advantages of MVC architectures are well known. They allow the developer to design theWeb application defining three separate levels: Model, View and Controller. In complexapplications, separation of concerns is fundamental; MVC allows it by separating data andbusiness object (the Model), user interface aspects (the View), and the rules that control theexecution logics of the application (the Controller). MVC decouples business logics and dataaccess from the presentation thanks to the Controller intermediate component.In the following figure we can see all the various stages of development of Web applications.MVC-WebFlow tool acts on the Data design step, the Hypertext design step and theImplementation step.Figure 5.1 – Development process and tool interventionRequirements analysis encompasses those tasks that go into determining the needs or conditionsto meet for the Web application, taking account of the possibly conflicting requirements of thevarious stakeholders, such as beneficiaries or users. Requirements analysis is critical to thesuccess of a development project and will produce a set of requirements (requirementsspecification) to be respected.45
Page 1 and 2: POLITECNICO DI MILANOFacoltà di In
Page 4 and 5: INDEX1. Introduction and problem pr
Page 6 and 7: 1. Introduction and problem present
Page 8 and 9: 2.2. Ajax Web Applications2.2.1. Wh
Page 11 and 12: development, nor as easy as old-sch
Page 13 and 14: AJAX application development possib
Page 15: Figure 2.3 - Traditional interactio
Page 19 and 20: frameworks. They allow you to map J
Page 21 and 22: Figure 3.2 - Draw2D shapes exampleT
Page 23 and 24: Possibility to use dynamic windows
Page 25 and 26: The PropertyWindow is maybe the mos
Page 27 and 28: Win 98 Win 2000 Win XP Win Vista Ma
Page 29 and 30: YAHOO.example.container.panel2.setB
Page 31 and 32: Tab One ContentTab Two ContentTab T
Page 33 and 34: We offer an online design tool that
Page 35 and 36: The Struts ControllerAlthough Strut
Page 37 and 38: many of the connections between the
Page 39 and 40: Table 1. Primitives of the MVC-Webf
Page 41 and 42: a JSP page can contain more than on
Page 43: Form property typeParameter name Pa
Page 47 and 48: 5.2. Business requirements and func
Page 49 and 50: the view needs the possibility for
Page 51 and 52: The state diagram in Figure shows a
Page 53 and 54: of the unit but also add and modify
Page 55 and 56: 5.5. Interface requirementsThe grap
Page 57 and 58: We can see in depth all the technol
Page 59 and 60: 5.7. Data schema designThe data sch
Page 61 and 62: Figure 5.15 - Logical view of the a
Page 63 and 64: ApplicationFiles packageThis packag
Page 65 and 66: its navigation flow. At the top the
Page 67 and 68: The developer has to define each el
Page 69 and 70: 6. Conclusions and future developme
Page 71 and 72: 7. Appendix A: Ajax open source and
Page 73 and 74: Avoid traditional approaches proble
Page 75 and 76: e updated as the result of one Ajax
Page 77 and 78: complete JavaScript parser which op
Page 79 and 80: http://www.zimbra.com7.2. JavaScrip
Page 81 and 82: Build for reliability Stable commun
Page 83 and 84: Powered by BindowsoooooStrength of
Page 85 and 86: Possibility to use images in the di
Page 87 and 88: An SVG DOM implementation A set of
Page 89 and 90: It’s fast, reliable, more stable
Page 91 and 92: • ProxyingProxy requests to remot
Page 93 and 94: WindowsEventAppender: send log mess
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XML form binding for easily copying
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24. Guida JavaScript di base - http
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