Background
During data and process modeling, Susan Park developed a logical model of the proposed
system. She drew an entity-relationship diagram and constructed a set of leveled and balanced
DFDs. Now Susan is ready to consider various development strategies for the new system. She
will investigate traditional and Web-based approaches and weigh the advantages and disadvantages of in-house development versus other alternatives. As she moves ahead to the systems
design phase, she will review design guidelines, consider the use of prototypes, and analyze the
possible use of codes.