Portals IST 421 Spring 2004 Lecture 3 Enterprise
- Slides: 18
Portals IST 421 Spring 2004 Lecture 3
Enterprise Information Portals o Portals – doorway to a focused set of resources either internal or external o Targeted for a specific audience n Employees, customers, suppliers o Serve as a single coherent view of information aggregated from different sources
Enterprise Information Portals o Back Office Systems - ERP, financials, human resources, engineering, process automation/workflow, project management o Front Office Systems – sales force automation, customer relationship management, help desk, marketing automation o Personal Productivity Systems – word processor, spreadsheet, presentation, contact manager, personal information manager
Enterprise Information Challenges o Managed data n n Legacy systems, proprietary systems Disconnected islands of automation o Unmanaged data n n n Ad-hoc productivity tools Chaotic access and exchange Restricted publication rights
Enterprise Information Portals o A system to manage access to information o Adopt a standard for transmitting and representing data using XML o Content must be abstract and kept separate from rendition n Rendition – the file format that contains the actual data and the description of the format
Enterprise Information Portals o Primary advantage is that there is no need to integrate systems directly between companies or within trading communities o Connect to each system through a point of integration n User interface, database, application server
Enterprise Information Portals o Today, more information flows through user interfaces than automatically through back-end integration
Portal Advantages o Supports a noninvasive approach o Faster to implement than real-time information exchange o Technology is mature with many portaloriented applications to learn from
Portal Disadvantages o Information does not flow in real time o Requires human interaction o Information must be abstracted through another application logic layer – complexity issue o Security is a concern when data is being extended to users over the Web
Portal Evolution o Single-System Portals n Single enterprise systems that have their user interfaces extended to the Web o Multiple Enterprise System Portals n Multiple enterprise systems information is funneled through a single Web-enabled application
Portal Evolution o Trading Community Portals n Multiple enterprise system portal is extended to include systems within many companies – trading community portal or digital exchange
Portal Architecture o Made up of components: n n n Web clients Web servers Database servers Back-end applications Application servers
Portal Server Architecture From The XML Handbook by Goldfarb and Prescod, Prentice Hall PTR, 2001.
Portal Architecture o Web Clients – any device able to run a Web browser and display HTML and graphics n PC, PDA’s, cell phones o Web Servers – file servers able to convert information into HTML and deliver to a Web browser using HTTP
Portal Architecture o Database Servers – work as a traditional client/server architecture o Back-End Applications – mix of applications such as SAP, custom applications, client/server applications n Portals gather appropriate information from these systems and present it to the user interface
Portal Architecture o Application Servers – provide a middle layer between the back-end applications, databases, and the Web server.
Portal Servers o Three requirements for portal servers: n n n Performance: reliability, availability, scalability Content distribution to PC’s, thin clients, mobile devices such as phones and PDA’s; personalization Business process integration
Portal Server Architecture o Personalization n Content delivery agents (CDA) is a program or script that creates a window for providing a data source Each user is assigned a “role” which specifies a collection of pages, CDS’s, and a default theme User may change the layout of any page, change the color and background images of the desktop
- Enterprise information portals
- Enterprise information portals
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- Business process integration definition
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- Enterprise information management gartner magic quadrant
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