Chapter 2 - 3 - Exam Reviewer.docx

CHAPTER 2 & 3 Reviewer -- System Analysis and Design - A methodology is a formalized approach to implementing the SDLC that is justified by experience. - A popular technique for investigating causes and effects is called a fishbone diagram. - Although team-oriented development is th...

CHAPTER 2 & 3 Reviewer -- System Analysis and Design - A methodology is a formalized approach to implementing the SDLC that is justified by experience. - A popular technique for investigating causes and effects is called a fishbone diagram. - Although team-oriented development is the norm, some companies see the role of the IT department as a gatekeeper. - Brain storming is a fact-finding technique for gaining information, through use of a small group discussion of a specific problem, opportunity, or issue. - CASE Tools are automated software tool used by systems analysts to develop information systems. - Data Centered methodologies utilize data models as the core of understanding the system concept, other models will be less important. - Data Dictionary/Repository is a central storehouse of information about the system's data. - Data Elements are pieces of data, which need not be broken further. - Data flow diagrams (DFDs) is graphically shows the movement and transformation of data in the information system. - Data flow is a path for data to move from one part of the information system to another. - Describe organizational problems and the ways to think and find those problems. - Describe the differences between tangible and intangible benefits. - Discuss Environmental, Behavioural and Implementation Model. - Documentation keeping accurate records of interviews, facts, ideas, and observations. - Economic Feasibility means that the projected benefits of the proposed system outweigh the estimated costs. - Explain the two types of Prototypes - FDD is a process of division, from a higher function to appropriate smaller functions. - Feasibility Study determines the probability of success of the proposed system and the assessment of the said project. - Functional Primitive is a Processes that do not create a child diagram. - How to perform fact-finding? - Illustrate the Waterfall Development. - In waterfall development- based methodologies, the analysts and users proceed sequentially from one phase to the next. - Internal and external factors affect every business decision that a company makes, and IT systems projects are no exception. - Interview is a directed conversation with a specific purpose that uses a question-and-answer format. - It is trial system is developed quickly and presented to the user for review. Refinement are made based on the review, and this process is repeated until the prototype is approved by the user. - Object-Oriented methodology attempts to balance the focus between processes and data. - One-time costs are associated with project start up, initiation and development. - Operational feasibility determines if the human resources are available to operate the system once it has been installed. - PERT diagram represented by a network of nodes and arrows that are then evaluated to determine the critical activities, improve the schedule, and review progress. - Preliminary investigation used to study the system request and recommend specific action - Process- centered methodologies focus on defining the activities associated with the system. - Process Model is a formal way of representing how a business system operates. - Projects where management has a choice in implementing them are called discretionary projects. - Prototype is a smaller version of the system with a minimal amount of features. - Rapid application development (RAD) resembles a condensed version of the entire SDLC, with users involved every step of the way. - Recurring costs are associated with ongoing use of the system. CHAPTER 2 & 3 Reviewer -- System Analysis and Design - Risk management is the process of identifying, evaluating, tracking and controlling risks to minimize their impact. - Sampling is a process of systematically selecting representative elements of a population. - Scalability is the system's ability to handle increased business volume and transactions in the future. - Schedule Feasibility is an assessment of time frame and project completion dates with respect to organization constraints for affecting change. - Stakeholders include anyone affected by the company's operations, such as customers, employee, suppliers, stockholder, and members of the community - Strategic planning is the process of identifying long-term organizational goals, strategies, and resources. - Structured analysis is a set of techniques and graphical tools that allow the analyst to develop a new kind of system specification that are easily understandable to the user. Analysts work primarily with their wits, pencil and paper." - Structured brainstorming is a group discussion where each participant speaks when it is his or her turn, or passes. - Survey is a document containing a number of a standard questions that can be sent to many individuals. - System Request is a document describing business reasons for project and system's expected value. - Technical feasibility refers to technical resources needed to develop, purchase, install, or operate the system. - The Review Committee reviews system requests from groups throughout the organization and selects projects for the benefit of the business. - To achieve its goals, the company develops a list of shorter-term objectives. - Two tools for project planning and control are Gantt charts and PERT diagrams. - Unstructured brainstorming is a group discussion where any participant can speak at any time. - What are the four types of useful documents during fact-finding What are the skills of a Successful Systems Analyst What is SWOT analysis? Discuss your answer.