a. Starting with a context diagram, draw as many nested DFDs as you consider necessary to represent all of the details of the engineering document management system described in the following narrative. You must draw at least a context diagram and a level-0 diagram. In drawing these diagrams, if you discover that the narrative is incomplete, make up reasonable explanations to complete the story. Provide these extra explanations along with the diagrams. Projects, Inc. is an engineering firm with approximately 500 engineers who provide mechanical engineering assistance to organizations, which requires managing many documents. Projects, Inc. is known for its strong emphasis on change management and quality assurance procedures. The customer provides detailed information when requesting a document through a Web portal. The company liaison (a position within Projects, Inc.) assigns an engineer to write the first draft of the requested document. Upon completion, two peer engineers review the document to ensure that it is correct and meets the requirements. These reviewers may require changes or may approve the document as is. The original engineer updates the document until the reviewers are satisfied with the quality of the document. The document is then sent to the company liaison, who performs a final quality check and ensures that the document meets the requirements specified by the customer. Finally, the customer liaison sends the document to the customer for approval. The customer can require changes or accept the document. When the customer requires changes, the company liaison assigns an engineer to make the changes to the document. When those changes are made, two other engineers must review them. When those reviewers are satisfied with the changes, the document is sent back to the company liaison, who sends the document back to the customer. This may happen through several iterations until the customer is satisfied with the document. b. Analyze the DFDs you created in part a. What recommendations for improvements can you make based on this analysis? Draw new logical DFDs that represent the requirements you would suggest for an improved document management system. Remember, these are to be logical DFDs, so consider improvements independent of technology that can be used to support the management of these documents.
a. Starting with a context diagram, draw as
many nested DFDs as you consider necessary to represent all of the details of the
engineering document management system described in the following narrative.
You must draw at least a context diagram
and a level-0 diagram. In drawing these
diagrams, if you discover that the narrative is incomplete, make up reasonable explanations to complete the story. Provide
these extra explanations along with the
diagrams.
Projects, Inc. is an engineering firm with
approximately 500 engineers who provide
to organizations, which requires managing many documents. Projects, Inc. is
known for its strong emphasis on change
management and quality assurance procedures. The customer provides detailed
information when requesting a document
through a Web portal. The company
liaison (a position within Projects, Inc.)
assigns an engineer to write the first draft
of the requested document. Upon completion, two peer engineers review the
document to ensure that it is correct and
meets the requirements. These reviewers
may require changes or may approve the
document as is. The original engineer updates the document until the reviewers
are satisfied with the quality of the document. The document is then sent to the
company liaison, who performs a final
quality check and ensures that the document meets the requirements specified
by the customer. Finally, the customer
liaison sends the document to the customer for approval. The customer can
require changes or accept the document.
When the customer requires changes,
the company liaison assigns an engineer
to make the changes to the document.
When those changes are made, two other
engineers must review them. When those
reviewers are satisfied with the changes,
the document is sent back to the company
liaison, who sends the document back to
the customer. This may happen through
several iterations until the customer is
satisfied with the document.
b. Analyze the DFDs you created in part a.
What recommendations for improvements can you make based on this analysis? Draw new logical DFDs that represent
the requirements you would suggest for an
improved document management system.
Remember, these are to be logical DFDs,
so consider improvements independent
of technology that can be used to support
the management of these documents.
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