User interface of DFQL: an object-oriented approach

Download
Author
Li, Chang-Tsun
Date
1992-06Advisor
Wu, C. Thomas
Second Reader
Erickson, David A.
Metadata
Show full item recordAbstract
In recent years, many graphical approaches have been proposed to life the inconvenience of text-based query language among end-users. The new query language called DFQL (DataFlow Query Language) is a fully graphical interface to the relational model based on a dataflow paradigm. It only requires users to connect some well-defined operators which have been given an equivalent one-to-one correspondent functionality (or construct) in traditional query language (SQL in this case). All of the power of current query languages and sufficient expressive power and functionality are retained. But some shortcomings of DFQL user interface still exist. This thesis is to introduce a more ease-to-use and ease-to-learn user interface, so the shortcomings we found in DFQL user interface can be lifted and the productivity and power of the new version of DFQL can be increased. We have adopted object-oriented programming approach in our implementation and the benefits of using object-oriented programming in our development are also discussed.
Rights
Copyright is reserved by the copyright ownerCollections
Related items
Showing items related by title, author, creator and subject.
-
Study of composite interface strength and crack growth monitoring using carbon nanotubes
Bily, Mollie A. (Monterey, California. Naval Postgraduate School, 2009-09);Interface strength of woven fabric composite layers was studied using Mode II fracture strength testing. Both carbon fiber and glass fiber composites were used with the vinyl ester resin. First, the single-step cured ... -
Creep behavior of the interface region in continuous fiber reinforced metal-matrix composites
Funn, John V (Monterey, California. Naval Postgraduate School, 1997-09);The accurate incorporation of interface effects on creep in metal matrix composites is contingent on the direct experimental determination of the deformation kinetics. The goal is accomplished by isolating the composite ... -
Expeditionary Mine Countermeasures (ExMCM) C4I Requirements (Continuation)
Das, Arijit (Monterey, California: Naval Postgraduate SchoolMonterey, California. Naval Postgraduate School, 2019-12); NPS-19-N065-AThe ExMCM is a broad program providing an innovative approach to the Mine Warfare mission area, required to operate with both U.S Navy and U.S. Marine Corps forces. The large number of sonar imagery files (from the MK18 ...