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© 2004 Popkin Software & System Inc. Enterprise Architecture and Business Process Modelling Developing a business-centred architecture Architecture Practitioners Conference, Brussels © 2004 Popkin Software & System Inc. David Harrison Senior Consultant, Popkin Software 22 April 2004 Business Process Model Accommodation Decomposition Diagram for BPM-UML Example Accommodation Handle Enquiry cancellation requested © 2004 Popkin Software & System Inc. Customer Requests Accommodation Make Reservation accommodation available Confirm Reservation Prov ide Accommodation Cancellation request Received Check In Guest Check Out Guest payment received accommodation charged to account accommodation unavailable Customer Advised of Unavailability Handle Cancellation Payment Received for Accommodation Invoice Raised for Accommodation Bill f or Accommodation Data Model Custom er Prim ary Key ID [PK1] Non-Key Attributes nam e address telNo f axN o creditCard is_a © 2004 Popkin Software & System Inc. Ov erseas Custom er Prim ary Key ID [PK1] [F K] Non-Key Attributes Nationality PassportN um ber Receptionist Prim ary Key em ploy eeID [PK1] ID [PK2] [F K] contacts is_a m akes UK Custom er Prim ary Key ID [PK1] [F K] Non-Key Attributes Postcode Trav el Agent Prim ary Key Agency _ID [PK1] Non-Key Attributes Agency _N am e Agent Phone Y TD _Com m ission m akes Reserv ation Prim ary Key code [PK1] em ploy eeID [PK2] [FK] ID [PK3] [F K] Property _Code [PK4] [F K] Unit_N umber [PK5] [F K] Non-Key Attributes status date duration room Ty pe Shif t_Num [FK] Sales_Clerk [FK] Agency _ID [F K] Guest_Num ber [FK] books Room Prim ary Key num ber [PK1] em ploy eeID [PK2] [FK] ID [PK3] [F K] Non-Key Attributes status ty pe Application Model A Reserv ation Booking "New Reserv ation" reserv ation details customer details D Customer Customer A reserv ation request P New Reserv ation reserv ation details Accounts © 2004 Popkin Software & System Inc. authorisation code P Accounts Receiv able customer credit rating D Customer credit card action account history Customer Serv ices P Customer Maintenance customer booking details maintenance detail Billing "Accounts Receiv able" "Customer Maintenance" maintenance details account history Models in the Enterprise Architecture Enterprise Architecture CUSTOMER PRODUCT ORDER Order Receiv ed Check Details Conf irm Order Enterprise Archi tecture - principl es + standards - Common Vocabulary Order Conf irmed © 2004 Popkin Software & System Inc. The Boss The Middle A A CRM Pay ments The Middle D The Work ers Customer Database © 2004 Popkin Software & System Inc. Explorer diagram: objects and collections © 2004 Popkin Software & System Inc. Explorer diagram: applicationstechnology © 2004 Popkin Software & System Inc. Explorer diagram: applications-processes © 2004 Popkin Software & System Inc. Explorer diagram: processes-roles © 2004 Popkin Software & System Inc. Explorer diagram: processes-data entities © 2004 Popkin Software & System Inc. Explorer diagram: processeslocations © 2004 Popkin Software & System Inc. Explorer diagram: one process with relationships © 2004 Popkin Software & System Inc. Explorer diagram: one application with relationships Business Process Lifecycle Model and Redesign Simulate and Optimize © 2004 Popkin Software & System Inc. System Architect Measure Execute © 2004 Popkin Software & System Inc. Business Process Modeling Notation (BPMN) © 2004 Popkin Software & System Inc. What is BPMN? BPMN – acronym for Business Process Modeling Notation New standard for modeling business and web service processes Provides users with an industry standard set of diagramming syntax and semantics, through a graphical diagram to facilitate the representation of business processes Owned by BPMI – www.BPMI.org - the Business Process Management Initiative Why is BPMN needed? © 2004 Popkin Software & System Inc. …… oh no not another new standard! Why is BPMN needed? Provide a standard where there hasn’t been a standard BPMN helps with Process Design Deployment Execution Maintenance Optimization © 2004 Popkin Software & System Inc. Aid interoperability between Business Process Management tools Support generation of process execution languages BPMN is a core enabler for Business Process Management (BPM) which is concerned with managing change to improve business processes. Goals of BPMN Provide a notation that is readily understandable by a business audience © 2004 Popkin Software & System Inc. capable of providing technical detail for the purposes of implementation that supports generation of XML based execution languages such as Business Process Execution Language (BPEL) Business process modelling with UML © 2004 Popkin Software & System Inc. Is a single modeling language enough? UML describes system behavior (Zachman Rows 4 & 5) Existing UML extensions for business modeling are described in terms of OO concepts, with which most business users are unfamiliar A single modeling language to span all the abstractions required by business users, analysts, systems designers and developers is open to interpretation Using UML to describe Scope or Enterprise perspectives: Takes it out of its original domain; and Requires us to map the existing symbol set onto different concepts © 2004 Popkin Software & System Inc. (UML) Activity diagram vs (BPMN) Process diagram BPMN and UML co-existence BPMN and UML will co-exist OMG and potential for BPMN-UML convergence Technical users may continue to use UML BPMN can be used to drive solutions that will run directly on a BPMS © 2004 Popkin Software & System Inc. BPMN can be used as a business analysis front end for subsequent systems development using UML UML users would then regard business processes merely as another type of component UML – Aggregation of multiple diagrams Grady Booch and OMT OMT and Grady Booch Ivar Jacobson James Odell and Oracle © 2004 Popkin Software & System Inc. Process-centric – single diagram type from which multiple views can be derived BPMN + UML + TOGAF in SA © 2004 Popkin Software & System Inc. Phase B – Business Architecture © 2004 Popkin Software & System Inc. BPMN + UML + TOGAF in SA Business Process Lifecycle Model and Redesign Simulate and Optimize © 2004 Popkin Software & System Inc. System Architect Measure Execute Key Components in Business Process Execution Application Development concerned with modelling business processes description of web services Generation of Business Process Execution Language (BPEL) production of executable code © 2004 Popkin Software & System Inc. Business Process Execution running the BPEL code Application Development – description of Web Services WSDL describes web services WSDL stands for Web Services Description Language. What is WSDL? an XML document used to describe Web services used to locate Web services Expose service operations Import the WSDL into System Architect as an XML Schema Hierarchy © 2004 Popkin Software & System Inc. Web Service Need to relate business processes to the web services that they call Use in the business process models to describe the method of execution Application Development – Business Process Models © 2004 Popkin Software & System Inc. The “Functions” described in the XML hierarchy are reused as UML Class Methods by dragging and dropping into BPMN Processes and Message Flows. Business Process Modelling © 2004 Popkin Software & System Inc. - Design and develop business processes using BPMN and utilising WSDL - “Functions” described in the XML hierarchy re-used as UML Class Methods by drag and dropping into BPMN Processes and Message Flows. Generate Business Process Execution Language What is BPEL? © 2004 Popkin Software & System Inc. Stands for Business Process Execution Language and is used for describing the execution of business processes provides an XML notation and semantics for specifying business process behaviour based on Web Services as an Is an XML document. A BPEL process is defined in terms of its interactions with partners BPEL orchestrates Web Services by specifying the order in which it is meaningful to call services It assigns responsibilities for each of the services to partners It is used to specify both the public interfaces for the partners and the description of the executable process Deploying BPEL Generate BPEL from the BPMN Models BPEL is intended to be platform independent. © 2004 Popkin Software & System Inc. Execution bindings to specific hardware/software platforms and other mechanisms required for a complete runtime environment for process implementation need to be specified prior to running. Business Process Management Develop, Design and Optimise Process Models © 2004 Popkin Software & System Inc. Capture WSDL Produce Deploy And Execute Business Process Management Server BPEL Engines Microsoft BizTalk Collaxa Intalio IBM WebSphere © 2004 Popkin Software & System Inc. …… Execution of BPEL © 2004 Popkin Software & System Inc. Load the business processes into the server Example of business process ready for execution within Collaxa BPM Server Example execution of BPEL © 2004 Popkin Software & System Inc. Example showing diagrammatically the status of one instance of execution of the process BPMN Summary BPMN is designed to enable Modelling of simple and complex business processes Offers the capability to model the exchange of messages involved in web services delivery Supports generation of Business Process Execution Languages (BPEL) © 2004 Popkin Software & System Inc. It is expected to become the new standard to model business processes and web services BPMN and the future Vendors are expected to provide support for Simulation of BPMN processes Generation of Business Process Execution Languages © 2004 Popkin Software & System Inc. Integration into workflow management tools Models in the Enterprise Architecture Enterprise Architecture CUSTOMER PRODUCT ORDER Order Receiv ed Check Details Conf irm Order Enterprise Archi tecture - principl es + standards - Common Vocabulary Order Conf irmed © 2004 Popkin Software & System Inc. The Boss The Middle A A CRM Pay ments The Middle D The Work ers Customer Database © 2004 Popkin Software & System Inc. BPMN + UML + TOGAF in SA Reference Material BPMN specifications from www.bpmi.org A White Paper titled ‘BPMN and Business Process Management. Introduction to the New Business Process Modeling Standard’ available from www.popkin.com © 2004 Popkin Software & System Inc. BPMN Tour from http://bpmi-notation-wg.netfirms.com/index.htm © 2004 Popkin Software & System Inc. Thank you www.popkin.com www.government.popkin.com