Systems Development, computer science homework help

  

The
Cycle Stationary Unit (CSU) is a company that sells stationary cycles to
fitness centers, rehabilitation centers, and home consumers. CSU is a
multi-million dollar business that employs 1,000 employees for the building,
selling, packaging, and shipping of their products to consumers. You are a
systems analyst, and management has tasked you to create a new point of sale
(POS) system for CSU.
You
must complete the following requirements for this final project:
Describe
briefly the five steps of the systems development life cycle.
Differentiate
between agile, JAD, and RAD methodologies. Which will you use for the
development, and why?
       Would
you use a prototype method?Summarize
the six steps of the preliminary investigation and the project triangle.
Explain
what a data flow diagram (DFD) is. Illustrate by drawing a DFD of a context
diagram point of sale (POS)
system
using the Gane and Sarson symbols and a diagram 0 DFD.
Discuss
what object-oriented development is, and draw an object model of the point of
sale system. Remember
you
must have an object model, attributes, and methods in the object model. Also,
draw a use case modeling
UML
(Unified Modeling Language) for the POS.
Describe
the seven basic principles for developing user interface design. Draw a simple
entity relationship
diagram
(ERD) for the POS.
Summarize
the last step of the SDLC of systems support and security. Why is this so
important to the Cycle
Stationary
Unit (CSU) organization?
Explain
what global, national, or local industry needs could affect the POS system.