Tài liệu Activity 5.2: Identifying Business Objects and Services ppt

Activity 5.2: Identifying Business Objects and Services In this activity, you will identify the business objects and services contained in the scenario the instructor provides. First, you will analyze the usage scenario for potential business objects. These candidate business objects are the logical constructs that help identify the services, attributes, and relationships of the future solution. Next, you will analyze the usage scenario for potential services. Finally, you will extend the analysis to identify hidden objects and services. Objectives After completing this activity, you will be able to: ! Analyze a usage scenario and determine candidate business objects and services for use in the solution design Before You Begin This activity includes both small group tasks and class discussion. Prerequisites There are no prerequisites for this activity. Materials ! Ferguson and Bardell, Inc. case study. ! Flip chart. ! Self-stick notes. ! Markers. Time to complete this activity: 45 minutes followed by a 15 minute discussion. 30 Activity 5.2: Identifying Business Objects and Services Exercise 1: Identifying Business Objects (15 min) ! Identify candidate business objects in a scenario 1. Participate in small groups as assigned by the instructor. 2. Review the future-state usage scenario provided by the instructor. 3. Analyze the usage scenario for people and things (nouns). 4. Write each noun on a separate self-stick note. 5. Place the self-stick notes on a flip chart so that the team can see the results of the analysis. These self-stick notes represent the candidate business objects. 6. Review candidate business objects for possible redundancy or lack of applicability. Activity 5.2: Identifying Business Objects and Services 31 Exercise 2: Identifying Services (15 min) After you have identified candidate business objects, you will then need to determine the candidate services that will be provided by those business objects. ! Identify candidate services 1. Participate in small groups as assigned by the instructor. 2. Review the future-state usage scenario and your preliminary object model. 3. Analyze the usage scenario for the actions (verbs) that will constitute candidate services. 4. Write each candidate service on a self-stick note. 5. Attach the self-stick note with the service to the object to which it applies. If a service does not appear to apply to any business object, place it off to the side for further analysis. 32 Activity 5.2: Identifying Business Objects and Services Exercise 3: Extending the Analysis and Design (15 min) Since a solution is made up of more then just one usage scenario, it is necessary to expand the analysis and design by extrapolating from the candidate business objects and services to find other business objects and services. ! Extend the analysis and design 1. Participate in small groups as assigned by the instructor. 2. Review the future-state usage scenario. 3. Analyze the candidate objects and services that are currently listed on the flip chart. 4. Focusing on the candidate objects, determine if there are services that can be identified that are not currently in the usage scenario. Write any new services on the applicable business object self-stick note. 5. Focusing on the candidate services, determine if there are objects that can be identified that are not currently in the usage scenario. Write any new candidate objects on a self-stick note and include on the flip chart. 6. Iterate through these instructions as needed until the team reaches a consensus that the key business objects and services have been identified. After completing the above steps, you will discuss your responses with the class. The instructor will write the class consensus on a flip chart. . by a 15 minute discussion. 30 Activity 5. 2: Identifying Business Objects and Services Exercise 1: Identifying Business Objects ( 15 min) ! Identify candidate. Activity 5. 2: Identifying Business Objects and Services In this activity, you will identify the business objects and services contained