Sign Up Now
Get instant access to over 1 million+ study documents
OR
Already registered? click here to login
By creating your account, you agree to our terms of service, privacy policy and student honor code.
Modeling Tool
In one of my system projects, I used the Logical Data Model to build separate models for each logical entity of the project. With Logical Data Model, it allowed me to represent each area of the system with one model diagram. Thus, the entire project encyclopedia is composed of separate data models that can be assembled into one complete system.
Logical data modeling can meet the needs of every system development because it is a very efficient method of creating a project model especially if the system is a large system. This method minimizes confusion during the process of developing a system's model. This is because one only needs to focus on the main function of each entity, what the entity needs to do, use, and provide, to other entities of the system. For instance, in a word processor application, we can have separate data model diagram for the Save, New Document, and Edit functions. Thus, if one is to work on the Save function, all he needs to think about is the logic behind saving a document, what the function needs to use, how to do the process of saving a document, and what the function needs to output that can later be used by other functions.
Moreover, logical data modeling is effective, efficient, and user-friendly in terms of documentation. Because each logical entity has a separate data model, information about an entity can be easily found should there be a need such as during system modifications. Also, logical data modeling can save time because each logical entity can be tested separately. However, although each logical area of a system has a separate data model, one drawback of logical data modeling is that it needs a very meticulous method of system tests. Otherwise, the system can be prone to errors especially if each entity was developed by different individuals during the development process. Such errors can be unmatched elements between related entities or missed elements that are important in the systems flow.
Bibliography
Relational Data Modeling.
Popkin Software.
http://government.popkin.com/methods/relational_data_modeling.htm
system modeling? Do you already have them installed? If you are installing the Rational XDE, how did it go? According to Allen McNaughton of Devx online computer magazine, the systems modeling program Rational XDE, in contrast to Microsoft's Visio systems modeling software, is by far the superior program of the two options. Unlike Microsoft's Visio, "Rational XDE supports round-trip engineering with continuous synchronization between the code and model elements that
Rational XDE modeling tool We recently received the Rational XDE modeling tool for use in class and luckily I had some previous practice using it. "XDE Professional, originally released in February, is a tool that allows software developers to "model" -- or create graphical representations of -- their software, so they need to write less code to build applications." (Wong, 2002) This report aims to describe my understanding of XDE and
Systems Media Table: Comparison System Uses Word processor The main purpose of this program is to construct sentences of the perceived information and manipulate paragraphs to form a word document. The program uses a display format 'what-you-see-is-what-you-get' to enhance the quality of the expected hardcopy. WordPerfect and Microsoft Word are mostly superseded by both organization and personal computers to perform functions such as word formatting, letter processing and some simple designing. Accordingly, it is the
System Design: Oahu Base Area Network The aim of this paper is to examine and discuss the Navy's decision to build the largest local area network (LAN) connecting the U.S. Pacific Fleet using information-gathering techniques and design methods. The system has the capacity to connect sailors and marines within the 102-million square miles of the Pacific Fleet's command coverage. Moreover it will provide the indispensable access for supplying and training the
Systems Thinking The key constructs of systems thinking were constituted in the first half of the 20th century in fields such as psychology, ecology, organismal biology, and cybernetics (Capra 1997). They include: sub-systems/parts/wholes, environment/system/boundary, process/structure, emerging properties, hierarchy of organizations, negative and positive feedback, data and control, open systems, holism, and the observer. The practical application of these constructs in many fields was discovered by von Bertalanffy (1950). He referred to
However, in the most recent theory of evolution which discusses the living world appears as the result of chance and an output of different randomly selected natural mills. This kind of development came to present as a result of the need of more subjects or topics in areas such as cybernetic, general system theory, information theory, theories of games which is needed in most decision making process in line