Database Reference
In-Depth Information
Final Document
Convert the working document.
Map the gathered information.
List all current data sources.
Identify all future data requirements.
Assemble and edit the document.
Conduct review sessions.
Get final concurrence from users.
Establish procedure to change requirements.
The success of a project using the JAD approach depends on the composition of
the JAD team. The size and mix of the team will vary based on the scope and extent
of the proposed database system. The typical composition, however, must have
certain roles present on the JAD team. For each of the following roles, usually one
or more persons are assigned.
Executive Sponsor Person controlling the funding, providing the direction, and
empowering the team members
Facilitator Person guiding the team throughout the JAD process—usually the
project manager or lead analyst
Scribe Person designated to record all decisions
Full-Time Participants
Everyone involved in making decisions about the data-
base system
On-Call Participants Persons affected by the project, but only in specific areas
Observers Persons who would like to sit in on specific sessions without partic-
ipating in the decision making
Observation of Processes
Almost all of the data requirements will be collected through one-on-one interviews
or through group sessions. This step of observing the business processes serves two
purposes. First, this step enables you confirm the data requirements gathered
through interviews. Second, the step provides an opportunity for you to collect any
requirements that were missed during the interviews.
You know that every business process within the organization generates data that
must be stored for use by the same process itself or by other processes. Further-
more, most processes make use of data generated by other processes. What exactly
do these two concepts mean—generating data and making use of data by a process?
Consider the process of settling an automobile claim by an insurance company.
This is a primary process for the claims processing business unit of the company.
The process begins with the receipt of an automobile claim from one of the policy-
holders. The person or persons in the company responsible for processing the claim
get some data from outside and enter them into the computer system. These are the
data generated by the process to be stored in the database. At the same time, the
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