building an ecommerce solution architecture - · pdf filebuilding an ecommerce solution...
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![Page 1: Building an eCommerce Solution Architecture - · PDF fileBuilding an eCommerce Solution Architecture Vin D’Amico President vin@damicon.com January 2002 New England Electronic Commerce](https://reader033.vdocument.in/reader033/viewer/2022051523/5a729ff87f8b9a9d538dba66/html5/thumbnails/1.jpg)
Building anBuilding an eCommerceeCommerceSolution ArchitectureSolution Architecture
Vin DVin D’’AmicoAmicoPresidentPresident
vinvin@@damicondamicon.com.comJanuary 2002January 2002
New England Electronic Commerce Users' GroupNew England Electronic Commerce Users' Group
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GoalsGoals
� Introduce Damicon, LLC�Define “Architecture”�Show Sample Architectures�Share Best Practices�Compare Web Services
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Who is DWho is DAMICON, LLCAMICON, LLC??
� Information Technology Advisors� IT Help Desk Enhancers�Adjunct CIOs� IT Change Agents
ItIt’’s not about technology, its not about technology, it’’s about business!s about business!
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Core CompetenciesCore Competencies
� IT Process Reengineering�Technical Consulting�Program Management�Planning and Execution Methodologies�Joint Requirements Planning� IT Training and Mentoring� IT Staffing
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What is ArchitectureWhat is Architectureandand
Why is it Important?Why is it Important?
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““A common mistake that people makeA common mistake that people makewhen trying to design somethingwhen trying to design something
completely foolproof is tocompletely foolproof is tounderestimate the ingenuity ofunderestimate the ingenuity of
complete fools.complete fools.””
-- Douglas Adams, AuthorDouglas Adams, Author
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Formal description of a system at theFormal description of a system at thecomponent level.component level.
The structure of components, theirThe structure of components, theirinterrelationships, and the principlesinterrelationships, and the principlesgoverning their design and evolutiongoverning their design and evolutionover time.over time.
Architecture DefinitionArchitecture Definition
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Why Architecture?Why Architecture?
�Lower software development, support, andmaintenance costs
� Improved interoperability and easier systemand network management
�Simpler upgrade and exchange of systemcomponents
�Reduced complexity in IT infrastructure�Flexibility to make, buy, or outsource IT
solutions
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Architecture is Critical InArchitecture is Critical In……
�Delivering an enterprise-computing system�Providing control points to manage complexity�Maintaining system integrity�Unifying component structure�Organizing people and processes�Generating rules for growing the system�Protecting an enterprise system
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Architecture GoalsArchitecture Goals
1. Accommodate Change2. Adhere to Standards3. Scale as Business Grows4. Provide Full Functionality5. Deliver Low Response Times6. Be Reliable7. Interoperate with Other Systems8. Provide Robust Security9. Be Simple to Manage10. Service International Users
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Architecture ElementsArchitecture Elements
� Personal Systems– Desktops, PDAs, Phones, Pagers, etc.
� Network Components– Routers, Load Balancers, Switches, etc.
� Security Elements– Firewalls, Encryption, VPNs, etc.
� Servers– Web, App, DB, Directory, etc.
� Application Components / Web Services– Packaged and/or Custom
� Data– Local, Remote, Internal, External
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Examples of ArchitectureExamples of Architecture
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Basic 3Basic 3--Tier ArchitectureTier Architecture
Database Server(s)
Application Server(s)
Database(s)Database(s)
The Internet
Web Server(s)
Users
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Physical ArchitecturePhysical Architecture
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Infrastructure ServicesInfrastructure Services
Complex Distributed ArchitectureComplex Distributed Architecture
Administration ServicesAdministration Services
Transaction ProcessingTransaction Processing
Data ManagementData Management
Presentation ServicesPresentation Services
Personal ServicesPersonal Services
Netw
ork Overlay
Netw
ork Overlay
Security Overlay
Security Overlay
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• Any Browser-basedDevice:• Desktop• Laptop• Handheld• Phone• Appliance• etc.
Personal ServicesPersonal Services
• Best Practices:• Adhere to Standards• Avoid Browser-
Specific Features• Minimize Decision
Logic• Use Java or C# for
Complex Functions
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Presentation Services
• Formatting Logic• Dynamic Content
Delivery• Portlets• Reporting• Internationalization
• Best Practices:–Separate Data
Retrieval fromFormatting
–Don’t Mix BusinessRules and DisplayLogic
–See Model-View-Control and LayerPatterns
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Data Management Services
• Searching• Categorization• Content Aggregation• Group Collaboration• Personalization• Distribution
• Best Practices:• Identify User Types• Focus on User Goals• Consider Performance• See Presentation-
Abstraction-Controland Chain ofResponsibility Patterns
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Transaction Processing Services
• TransactionManagement
• Metadata Control• Application Interfaces• Business Rules• Data Interchange
• Best Practices:• Focus on Interfaces• Beware Incomplete
User Activities• Think Services• Do Not Hard Code
Business Rules• See Adapter, Façade,
Proxy, Observer and,Broker Patterns
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Administration Services
• Directory Services(LDAP)
• System Administration• State Management• Session Management• User Controls• Rules Definition
• Best Practices:• Define Policies• Control System
States• Anticipate Growth• See Command and
Microkernel Patterns
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Infrastructure Services
• Data Access• Communications• Process and Thread
Management• Sun One and MS .Net• Content Repositories
• Best Practices:• Adhere to Standards• Understand Data• Model Data• Manage Data• See Abstract Factory
and MediatorPatterns
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Security Overlay
• Hardware Firewalls• Software Firewalls• SSL and WTLS• VPN’s• Encryption
• Best Practices:• Establish Policies• Secure the Perimeters• Monitor for Intrusions• Stay Aware• Patch, Patch, Patch
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Network Overlay
• Routers• Load Balancers• Switches• Gateways• Modems• Hubs• Cabling
• Best Practices:• Separate Major
Workgroups• Separate Major
Applications• Constantly Review
Structure• Document, Label,
Diagram
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Physical ArchitecturePhysical Architecture
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Web ServicesWeb Services
�Major Players– IBM (WebSphere)– Microsoft (“.NET”)– Sun Microsystems (Sun ONE)
�Problem Space– Distributed Applications– Interoperability
�Solution Space– XML– Interfaces
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Sun ONE
J2EEJDBCJVMJavaEJBJSPJNDIJAX_
MS .Net
Win XPODBCMSILCLRC#
VB.NetASP.NetADO.Net
SOAPWSDLUDDIXML
Web ServicesWeb ServicesThink Interfaces!Think Interfaces!
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ResourcesResources� The Open Group (TOGAF)
– http://www.opengroup.org� Portland Pattern Repository
– http://c2.com/cgi-bin/wiki?PatternIndex– http://c2.com/cgi-bin/wiki?AntiPatterns
� Microsoft (“.NET” initiative)– http://www.microsoft.com/net
� Sun (“Sun ONE” initiative)– http://www.sun.com/sunone
� Acronym Finder– http://acronymfinder.com
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New England Electronic Commerce Users' GroupNew England Electronic Commerce Users' Group