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Business Activity ModelingNick LambrouUniversity of Westminster5/4/2024Business Activity ModelingThe technique provides a pictorial representation of the business which helps tease out the requirements,focus on the areas of concern,put the system into perspective,inform the clients of what is possible and what is in the realm of science fiction,while never alienating them in any way.5/4/2024Business Activity ModelingWhen used properly,Business Activity Modelling can increase user participation and encourage users to build a sense of ownership for the future system.5/4/2024Business Activity ModelingnBusiness EventsnBusiness TasksnActivitiesnTasks5/4/2024Business Activity Modeling Business EventsBusiness Events Trigger the Activities of one Business TaskActivity AActivity BActivity DActivity CBusiness taskBusinessevent5/4/2024Business Activity Modeling ActivitiesAn Activity is a self contained action that usually is achieved in one sitting5/4/2024Business Activity Modeling TasksAn Activity can be broken-up into tasks.The tasks involved in completing an activity may vary according to different conditions.When an activity is complicated,we may analyse the activity by breaking it into tasks and then reconstructing these tasks.5/4/2024Business Activity Modeling NotationA business activity5/4/2024Business Activity Modeling NotationThe phrase describing the activity should contain a verb which shows what happens from the business point of view.Thus Customer Appointment wont do since it is verbless.Similarly,Ask For Appointment wont do either since it depicts the customers point of view.5/4/2024Business Activity Modeling Salon Example5/4/2024Business Activity Modeling Salon ExampleIn typical pictorial fashion we can display all the business activities on a page large enough.We can then link those activities with arrows indicating associations which show,in some loose form,which activities have to precede which.5/4/2024Business Activity Modeling Salon ExampleFor example,the following activities regarding a single appointment are evident in our Salon:a receptionist takes the appointment and if the customer is new a customer record is set-up;close to the day of the appointment the receptionist makes sure a stylist is allocated to the appointment;on the day of the appointment a stylist attends to the customer where,as part of the job,alternative treatments may be suggested.5/4/2024Business Activity Modeling Salon ExampleTakeCustomerAppointmentAppointmentsArrangeStylistAttend ToAppointmentRecommendAlternativeTreatmentsSet UpCustomerFile5/4/2024Business Activity Modeling Setting the BoundaryTakeCustomerAppointmentAppointmentsArrangeStylistAttend ToAppointmentRecommendAlternativeTreatmentsSet UpCustomerFileinsideoutside5/4/20245/4/20245/4/2024Work Practice ModelingnWhile the BAM defines the business activities in terms of what,when,how and why,the WPM specifies who will carry out each activity and wherenThe products of Work Practice Modelling include the User Catalogue,Task Models,Task Scenarios,and User Roles5/4/2024Work Practice ModelingD De ef fi in ni it ti io on n o of f R Re eq qu ui ir re emme en nt ts sI Id de en nt ti if fy y U Us se er r R Ro ol le es sI Id de en nt ti if fy yT Ta as sk ks sD De ev ve el lo op p R Re eq qu ui ir re ed dT Ta as sk k MMo od de el ls sD De ev ve el lo op p T Ta as sk kS Sc ce en na ar ri io os sI In nv ve es st ti ig ga at ti io on n o of f C Cu ur rr re en nt t E En nv vi ir ro on nmme en nt tD De ev ve el lo op p B Bu us si in ne es ss sA Ac ct ti iv vi it ty y MMo od de el lP Pe er rf fo or rmm I In ni it ti ia al l U Us se er rA An na al ly ys si is sB Bu us si in ne es ss s S Sy ys st te emm OOp pt ti io on ns sP Pr ro op po os se e A Al lt te er rn na at ti iv ve eO Ou ut tl li in ne e WWo or rk k P Pr ra ac ct ti ic ce eMMo od de el ls sA Ag gr re ee e A Au ut to omma at ti io on nB Bo ou un nd da ar ry yP Pr ro ot to ot ty yp pi in ng gD De ev ve el lo op p R Re eq qu ui ir re ed dT Ta as sk k MMo od de el ls s5/4/2024Work Practice ModelingThe receptionist5/4/2024Work Practice ModelingThe stylist5/4/2024Work Practice ModelingnWork Practice Modelling entails the allocation of responsibilities to humans.To do so successfully,experience is needed plus the full backing of the affected organisation.5/4/2024Hierarchical Task ModelingnA task model describes the human activities that take place as a response to a business event.The BAM,which is after all just a network of activities,provides the starting point of activity identification.Each activity may then be broken down into smaller tasks which have to be performed to complete the activity.These tasks can be arranged in a hierarchy using a Hierarchical Task Model(HTM).5/4/2024Hierarchical Task Modelingplan(10):18 or 14,18ArrangeAppointment10Set UpCustomerRecord14Take DownAppointmentDetails18plan(18):186,189 or 183,186,189 or 183ListAvailableSlots183RecordAppointment186InformStylist1895/4/2024Hierarchical Task ModelingTask ScenariosnOne way of understanding and controlling the tasks involved in the successful completion of an activity is to provide concrete examples of real life situations which describe from beginning to end the actions needed to complete the activity.5/4/2024Hierarchical Task ModelingTask ScenariosnEach business activity is influenced by certain happenings and conditions to which users of the system have to react in order to complete the activity.Each set of such conditions represents a task scenario for the activity.For example,each different plan of the HTM represents a Task Scenario5/4/2024Hierarchical Task ModelingTask ScenariosnTask Scenarios are very helpful in validating Task Models.Usually,the task scenarios precede and drive the creation of the Task Model,but,as with all other diagrammatic tools of system analysis,the tables are soon turned and the Task Model generates ideas for Task Scenarios which can be validated with the users5/4/2024Hierarchical Task ModelingnHierarchical Task Modelling originated in the 50s when sociologists were trying to dissect peoples jobs in order to analyse them fully.The dissection of jobs into separate tasks led to a better understanding of these jobs and provided,almost as a side-product,tighter job descriptions and clearer training manuals.Their use in a computing environment will hopefully lead to similar benefits.5/4/2024The System Development TemplateDecision StructurePolicies and ProceduresUser OrganisationInvestigationConstructionSpecification5/4/2024The System Development TemplateDecision StructurePolicies and ProceduresUser OrganisationInvestigationConstructionSpecificationConceptual ModelInternal designExternal Design5/4/2024The Place of Business Activity ModelingDecision StructurePolicies and ProceduresUser OrganisationInvestigationConstructionSpecificationConceptual ModelInternal designExternal DesignBAMRDWPM5/4/2024谢谢你的阅读v知识就是财富v丰富你的人生
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