Lecture Chapter 4: Beginning the analysis - Investigating system requirements

Lecture "Chapter 4: Beginning the analysis - Investigating system requirements" provides students with the knowledge: The analysis phase in more detail, system requirements, techniques for Information gathering, conduct interviews and discussions with users, activity diagram showing concurrent paths,... Invite you to consult.

Nội dung trích xuất từ tài liệu:
Lecture Chapter 4: Beginning the analysis - Investigating system requirements 4 4 Learning Objectives Chapter 4:  Describe the activities of the systems analysis life Beginning the Analysis: cycle phase Investigating System Requirements  Explain the effect of business process reengineering on activities of the analysis phase Systems Analysis and Design in a Changing  Describe the difference between functional and World, 3rd Edition nonfunctional system requirements  Identify and understand the different types of users who will be involved in investigating system requirements Systems Analysis and Design in a Changing World, 3rd Edition 2 4 4 Learning Objectives (continued) Overview  Describe the kind of information that is required  Analysis phase of SDLC skills needed: to develop system requirements  Fact-finding for investigation of system requirements  Determine system requirements through review of documentation, interviews, observation,  Analyst should learn details of business processes prototypes, questionnaires, vendor research, and and daily operations joint application design sessions  Analyst should become as knowledgeable as business domain users to build credibility  Discuss the need for validation of system requirements to ensure accuracy and  Analyst brings fresh perspective to problem completeness and the use of a structured  Modeling of business processes based on system walkthrough requirementsSystems Analysis and Design in a Changing World, 3rd Edition 3 Systems Analysis and Design in a Changing World, 3rd Edition 4 4 4 The Analysis Phase in More Detail The Activities of the Analysis Phase  Gather information  Define system requirements  Logical model and physical model  Prioritize requirements  Prototype for feasibility and discovery  Generate and evaluate alternatives  Review recommendations with managementSystems Analysis and Design in a Changing World, 3rd Edition 5 Systems Analysis and Design in a Changing World, 3rd Edition 6 4 4 Activities of the Analysis Phase Business Process Reengineering and Their Key Questions and Analysis  Fundamental strategic approach to organizing company  Streamlines internal processes to be as efficient and effective as possible  Questions basic assumptions for doing business and seeks to find a better way  Uses IT as BPR enabler  Systems analyst may discover opportunities for process improvement  Any project may include components of BPRSystems Analysis and Design in a Changing World, 3rd Edition 7 Systems Analysis and Design in a Changing World, 3rd Edition 8 4 ...