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2II60 Technology of Information Systems Course 2008

2II60 Technology of Information Systems Course 2008. Architecture of Information Systems Group Department of Computer Science K.M. van Hee. Goals of the course. Learn how modern information systems are built out of components. Learn what type of components there are.

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2II60 Technology of Information Systems Course 2008

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  1. 2II60 Technology of Information Systems Course 2008 Architecture of Information Systems Group Department of Computer Science K.M. van Hee Technology of information systems

  2. Goals of the course • Learn how modern information systems are built out of components. • Learn what type of components there are. • Learn what techniques there are to select, configure and integrate these components. • Build up some experience with these techniques • Learn how industrial / commercial components work Technology of information systems

  3. Contents of the course block A • Introduction to information systems..........(KvH) • Architecture...............................................(KvH) • Webservices (1) and case study ….……..(KvH) • Webservices (2) …....................................(KvH) • Process magement....................................(KvH) Technology of information systems

  4. Contents of the course block B • Business Process Execution Language….(EV) • IBM Websphere..........................(F. Nieuwerth) • Cordys...............................(Gerwin Ligtenberg) • MS BizTalk...................................(Lex Oskam) • ERP-packages.................(A. Klappe, Deloitte) Technology of information systems

  5. Contents of the course block C • Data management……………….(KvH) • Business Objects........................(???) • Rule management........................(AS) • ILOG............................(Nitsan Seniak) • Wrap up and conclusions...........(KvH) Technology of information systems

  6. Examination • Students do a multiple choice test that covers the concepts treated in the course. • Students (in groups) do a project in which they build an information system with components. They produce a concise report and they give a demonstration. Technology of information systems

  7. Lecture 1 Component-based Information Systems Technology of information systems

  8. Contents • Enterprises • Functions of information systems • The component-based world • Enterprise Resource Planning (ERP) systems Technology of information systems

  9. Enterprises (1) An enterprise is a system or organization that is producing (physical) products or services for clients by executing business process and using resources. Technology of information systems

  10. Enterprises (2) • Typical types of resources are: • Buildings • Money • Energy • Equipment (vehicles, machines) • People • Knowledge (e.g. recipes, market information) • Information systems • Supplies (e.g. raw materials or components) • Resources are durable or consumable (classify them yourself) Technology of information systems

  11. Enterprises (3) Classification of business processes • The business processes (BP) are essential: they are needed to make the products or services. We distinguish three types of BP’s: • Primary BP’s: they produce the products and services using the resources: they are directly related to the production orders. • Secondary BP’s: they enable the primary BP’s by providing and maintaining the resources and by controlling relationships with customers and suppliers. • Tertiary BP’s: they take care of the control of the enterprise as a whole and of the coordination of the primary and secondary BP’s Technology of information systems

  12. Enterprises (4) • An enterprise obtains (buys, rents) the resources from suppliers. Suppliers are enterprises themselves. • The stakeholders of an enterprise are people or organizations that have some interest (stake) in the enterprise. • Main stakeholders are: • Shareholders who own the enterprise • Employees who work as human resources for the enterprise • Clients who buy products or services • Suppliers who sell raw materials or components • Government (departments for tax, environment, economical affairs etc) Technology of information systems

  13. Functions of information systems(1) Information Systems (IS) supportan enterprise by • Monitoring of business processes: • Planning of business processes: • Decisions are made about resource assignment and scheduling of activities • Execution of business processes: • Is in fact a business transaction • Support of employees: • With cooperation • With knowledge sharing Technology of information systems

  14. Functions of information systems(2) How? • Monitoring • registration of states of objects and events with a database management system (DBMS) • generation of management information, Online analytical processing (OLAP) with a data warehouse system • Planning • evaluation of human made decisions (Decision support systems) • generating decisions automatically (Planning systems) • Execution • online transition processing (OLTP) • Support • groupware systems (virtual meetings, project administration) • knowledge management systems and expert systems Technology of information systems

  15. IS vs ES • IS support business processes inside an enterprise. • They are also called: Enterprise Information Systems • Between two or more enterprises (also called: e-Business Systems or Interorganizational Information Systems) • Embedded systems (ES) support a physical device • ES have more simple data structures • ES have stronger time and resource constraints despite the differences, most methods apply to both type of systems Technology of information systems

  16. user interface monitor interface component configuration interface software interface Component-based world (1) • So components have the role of service consumer: buy side • Systems are networks of cooperating components • Components may reside anywhere • Components deliver services to their clients: sell side • So components have a role as service provider • Components often use services offered by other components Synonyms • Capsules • Modules • Packages • Classes Technology of information systems

  17. user interface monitor interface component configuration interface software interface Component-based world (2) • Components are specified and recognized by their function and their interface: interface = protocol + datatypes Technology of information systems

  18. Numetrix Commercial Of The Shelf (COTS) components Component based world (3) e.g.: a telco operator is built of about 20 COTS components Technology of information systems

  19. Component-based world(4) • Distinguish two kinds of components: small and large ones • Small ones are found in public libraries, often freeware. They fulfill some specific, small task, like sorting a file. • Large components have a vendor and they support a complex business process, like bookkeeping • Webservices is focusing on small components • Software packages and ASP services can be considered as large components Technology of information systems

  20. Component-based world (5) Different types of components: • application components contain business logic • generic components support application components and have no business logic Technology of information systems

  21. Component-based world (6) Parameters of predefined components: • parameters are options, selected from a list or input as simple data (often a tree of option lists) • limited flexibility, but easy to use • little ICT knowledge but much application knowledge required Technology of information systems

  22. Component-based world (7) Parameters of programmable components: • parameters are models, like data models and process models • the model defines the function of the component • special languages to make models (often diagrams) • very flexible, but advanced ICT knowledge required Technology of information systems

  23. Component-based world (8) Component based development is different: • requirements are determined • an architecture is designed • components are specified • components are selected from vendors or constructed from scratch • configuring components = parameter setting • integration = connecting components interfaces, often via middleware • testing • deployment programming= configuring + integration Technology of information systems

  24. Component-based world (9) • Component-based systems will behave in an ‘organic way’: • periodically components will be replaced by better ones • new functionality will be realised by new components • Vendors will compete with the best functionality of their individual components Technology of information systems

  25. Component-based world (10) • Prepacked solutions will be offered by third parties: • combinations of components with parameters that can be used as a new predefined component • prepacked solutions can be made by ‘third parties’ • ‘Prepackers’ will compete with vendors of packages • Components may be outsourced to an ASP:Software As A Service (SAAS) Technology of information systems

  26. Component-based world (11) Features of IS to be componentized • Data management • User interaction • Business process (workflow) • Business logic • Coordination (orchestration, choreography) • Security control • ….??? Technology of information systems

  27. Database man. system Document man. system Datawarehouse / Dataminer Content man. system Webserver Application server Rule engine Workflow man. system Coordination engine Oracle, SQL server, MySQL OpenIMS, Worldox Business objects, Cognos Tridion, Tekfuse CMS Apache, IIS WebLogic (BeaSys), Borland Enterprise Server FairIsaac, ILOG Staffware, Cosa BizTalk, Tibco Component-based world (12) Generic components and some vendors Technology of information systems

  28. database management content managers orchestrators application servers BizTalk Server document management webservers data warehousesbusiness intelligence business rule engines workflow engines Component-based world (13) Technology of information systems

  29. Web Server ApplicationServer Rule Engine Workflow Engine Coordination Engine Application Application Database Manager Document Manager Data Warehouse ContentManager Example Component based world (14) Technology of information systems

  30. ERP systems(1) • Purchase and Inventory control • PRODUCTION • PLANNING Capacity plan Sales forecast Purchase Master production plan Sales Detailed Production plan Supplier Materials Intake Production control Distribution Customer Predefinedapplication components Sales and distribution Technology of information systems

  31. ERP systems(2) ERP functions • Purchase and supplier management • Sales and distribution planning (invoicing, transport planning) • Inventory control • Quality control • Production planning (material planning, capacity planning) • Means of production planning (equipment, maintenance) • Human resource planning (payroll, timesheets, personnel and organization chart) • Financial management (general ledger, debtors, creditors, asset management, treasury management) • Supporting functions: • Workflow management • Data warehousing • Industry specific functions (telco, health care etc) Technology of information systems

  32. ERP systems(3) Evolution of functions • It started with the financial administration • Then inventory control appeared • Three phases: • Islands of automation • Internally integrated • Externally integrated: • Supply chain management • E-Procurement • Customer relationship management • E-commerce/ E-business Technology of information systems

  33. Purchase & inventory control Rule engine EIS Production planning DMS Statistical analysis OLAP Production means control. Interne databases Data mining Query- en reporting HRM Externe databases Data cleansing Meta Data Financial management eBusiness ERP systems(4) Components of an ERP system Data collection Data warehousing Knowledge management Functional Applications Software infra structure (OS, middleware, …) Hardware infra structure Technology of information systems

  34. ERP systems(5) ERP processes as supported by development tools Technology of information systems

  35. ERP systems(6) ERP processes as supported by development tools Technology of information systems

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