Why is it important to use systems analysis and design methodologies when building a system? Why not just build the system in whatever way appears to be “quick and easy”? What value is provided by using an “engineering” approach?

DBU, KSV College, Sampson, University of Ibadan,

How might prototyping be used as part of the SDLC?

Apple, ASD Lab,

Why should project managers complete hard problems first in an OOSAD project?

Why is planning too much up front a mistake in an OOSAD project?

Infosys,

Using the example of a retail clothing store in a mall, list relevant data flows, data stores, processes, and sources/sinks. Observe several sales transactions. Draw a context diagram and a level-0 diagram that represent the selling system at the store. Explain why you chose certain elements as processes versus sources/sinks.