MIS Chapter 9 Systems Development and Project Management

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legacy system
is an old system that is fast approaching or beyond the end of its useful life within an organization
is the process of tranferring information from a legacy system to an new system
software customization
modifies software to meet specific user or business requirements
off-the-shelf application software
supports general business processes and does not require any specific software customization to meet organization’s needs
systems development life cycle (SDLC)
is the overall process for developing information systems, from planning and analysis through implementation and maintenance
SDLC and its Associate Activities
planning, analysis, design, development, testing, implementation, and maintenance
planning phase
established a high-level plan of the intended project and determines project goals
change agent
is a person or even that is the catalyst for implementing major changes for a system to meet business changes
is a technique for generating ideas by encouraging particupants to offer as many ideas as possible
is a temporary activity a company undertakes to create a unique product, service, or result
project manager
is an individual who is an edpert in project planning and management, defins and develops the project plan, and tracks the plan to ensure that the project is completed on time and on budget
project scope
describes the business need (the problem the project will solve) and the justification, requirements, and current boundaries for the project
project plan
is a formal, approved document that managers and controls the entire project
analysis phase
the firm analyzes its end user business requirements and erfines project goals into defines functions and operations of the intended system
business requirements
are the specific business requests the system must meet to be successful, so the analysis phase is critical because business requirements drive the entire systems development effort
requirements management
is the process of managing changes to the business requirements throughout the project
requirements definition document
prioritized all of the buiness requirements by order of importance to the company
is the users’ actual signatures indicating they approve all the of the business requirements
process modeling
involves graphically representing the processes that capture, manipulate, store, and distribute information between a system and its environment
data flow diagram (DFD)
illustrates the movement of information between external entities and the process and data stores within the system
computer-aided software engineering (CASE)
tools are software suites that automate systems analysis, design, and development
design phase
establishes descriptions of the desired features and operations of the system, including screen layouts, business rules, process diagrams, pseudocode, and other documentation

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