Research on the Implementation Scheme of Teaching Reform of “Information System Analysis and Design Practice Project”

2021 ◽  
Vol 11 (02) ◽  
pp. 476-483
Author(s):  
晓雪 张
Keyword(s):  
Information System ◽  
System Analysis ◽  
Design Practice ◽  
System Analysis And Design ◽  
Analysis And Design ◽  
Teaching Reform ◽  
Implementation Scheme

A Look Behind Conceptual Modeling Constructs in Information System Analysis and Design

2010 ◽  
Vol 1 (1) ◽  
pp. 79-108 ◽  
Author(s):  
Remigijus Gustas
Keyword(s):  
Information System ◽  
System Analysis ◽  
Conceptual Modeling ◽  
Technical System ◽  
Single Type ◽  
System Analysis And Design ◽  
Analysis And Design ◽  
Object Oriented Design ◽  
Modeling Approaches ◽  
Modeling Approach

Information systems can be conceptualized in a number of ways. Most methodologies propose to analyze separately process and data semantics by projecting them into totally different diagram types. This system analysis and design tradition is very strong in most modeling approaches such as structured analysis as well as object-oriented design. Structural and behavioral aspects are complementary. They cannot be analyzed in isolation. Lack of a conceptual modeling approach, which can be used for verification of semantic integrity among various types of diagrams, is the cornerstone of frustration for information system architects. Inconsistency, incompleteness and ambiguity of conceptual views create difficulties in verification and validation of technical system architectures by business experts, who determine the organizational strategies. Consequently, the traditional information system methodologies are not able to bridge a communication gap among business experts and IT-system designers. Various interpretations of semantic relations in conceptual modeling approaches make the system analysis and design process more art than science. It creates difficulties to formulate comprehensible principles of decomposition and separation of concerns. Unambiguous definition of aggregation and generalization is necessary for breaking down information system functionality into coherent non-overlapping components. This article concentrates on conceptual modeling enhancements, which help to avoid semantic integrity problems in conceptualizations on various levels of abstraction. The presented conceptual modeling approach is based on a single type of diagram, which can be used for reasoning on semantic integrity between business process and data across organizational and technical system boundaries.

scholarly journals Design of a web – based online Contract Administrative System platform of an Engineering firm

2019 ◽  
Vol 8 (05) ◽  
pp. 24612-24620
Author(s):  
Emmanuel Nwabueze Ekwonwune ◽  
Duru Ngozi A. ◽  
Uka Kanayo K.
Keyword(s):  
Information System ◽  
Design Methodology ◽  
System Analysis ◽  
Administrative System ◽  
Web Based ◽  
System Analysis And Design ◽  
Analysis And Design ◽  
System A ◽  
Dynamic Web ◽  
Structured System

This paper is aimed at designing a dynamic web – based Contract Bidding Information System that will be used to register details online to enable bidding for advertised contracts. It was motivated by the growing recognition of the need to modify bidding operation previously done manually. The Structured System Analysis and Design Methodology (SSADM) was used to develop a contract bidding system. A web – based application will be developed to enable bidders register and submit their biddings online.

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