Research And Implementation Of Decision Oriented Dynamic Report Based On MDA

There are different report models for different report systems today and this makes it impossible to exchange data between those models. This problem leads to "isolated island" problem in software engineering and make it impossible to reuse report model between reports. To solve the problem, a report product platform based on MDA (Model Driven Architecture) was designed and this will make the user get rid of the limitation of special report platform and focus on the design of report PIM (Platform Independent Model). PIM will be transformed to PSM (Platform Special Model) through the "switch rule", and the report code will be completed finally. In this thesis, probability of this platform is proved firstly from the aspect of algebra theory, and realization process is also given. Based on MDA, how to establish the PIM and Switch Rule is of importance, these problems are also the difficulties. The Report Description Language RDL is defined using the XML, and it is also regarded as the description of the PIM; Secondly, the mapping relation of different algebra systems is analyzed, and it is also the basis for Switch Rule. In this thesis, one report system is regarded as one algebra system, and the switch among different report systems is accomplished throng the mapping relation of algebra system.Most Report Systems focus on the exhibition of the data from the database and ignore the process of the data. Therefore,a new Report System "Dreport" is proposed. Besides of the strong exhibition of data, "Dreport" System constructs a new architecture which adapts to data analysis, and OLAP (On-Line Analytical Processing) structure will be introduced and put into "Dreport" System. The filling module of Dreport is based on transaction, and has the properties of reuse of component and extending of function.