Referential integrity is a relational database concept, which states that table relationships must always be consistent. In other words, any foreign key field must agree with the primary key that is referenced by the foreign key. Thus, any primary key field changes must be applied to all foreign keys, or not at all. The same restriction also...
Joint application development (JAD) is a prototyping life cycle methodology that uses collaborative JAD workshops to depict the business viewpoint of end users (or customers) for effective solution development. In project development, the historical approach involves individual stakeholder interviews, which may not yield appropriate required output. JAD team workshops are geared toward summarizing and resolving development issues through a joint effort between developers and end users.
JAD process steps are as follows:
JAD enhances user participation, thereby improving specification quality. Projects adhering to the JAD methodology are critical for an organization's future success. JAD is applied to new systems, conversions, enhancements and purchasing. JAD workshops require several key process participants and occur over a three- to five-day period.
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