Business Analysis Exam 2 Questions and Answers

Business Analysis Exam 2 Questions and Answers Rules of process modeling - Answer-1. left to right, top to bottom 2. show all processes 3. data flows must start or end in a process 4. beware of black holes - every process and data store must produce data 5. no "magic processes" - must enter all data needed to get data out Rule of thumb (DFDs) - Answer-imagine that you are producing a diagram that must pass this test: you will finish the DFD, then hand it to someone who will then proceed to describe the process back to you based upon what he or she sees in your diagram Entity Relationship Diagram (ERD) - Answer-a detailed, logical, and graphical representation of the entities, associations and data elements for an organization or business Prototyping advantages - Answer-it is most useful when: user requests are not clear, designs are complex and require concrete form to evaluate fully, few users are involved in the system, there is a history of communication problems between analysts and users, and tools are readily available to build it Prototyping disadvantages - Answer-its drawbacks include: a tendency to avoid formal documentation, Systems Development Life Cycle (SDLC) checks are often bypassed, it is difficult to adapt to a more general user audience, sharing data with other systems is often not considered Business Process Reengineering (BPR) - Answer-the search for and implementation of radical change in business processes to achieve breakthrough improvements in products and services BPR Goals - Answer-to reorganize complete flow of data in major sections of an organization, eliminate unnecessary steps, combine steps, become more responsive to future change BPR processes to reengineer - Answer-Key business processes, Specific activities, and disruptive technologies