9
Select types of Version Metadata
An option to follow this decision involves selecting necessary metadata types, which include an adequate version granularity. Versioning could be either settle on model element level or on the model.
10
Select Change Log of Metadata Types
With reference to the decision of selecting version metadata, an architect needs to decide whether to add change log metadata to either the model element of the model level.
11
Select types of Security Metadata
An Architect could choose among several security options. An architect needs to choose mechanisms to protect the whole repository.
12
Select Life Cycle of the Metadata Types
An Architects can choose a life cycle manager which can determine if a requested action could be allowed on the current state
13
Select Association Mode
This decision involves dealing with whether to use a general association model or model relationships within the domain models. (Lloyd et al. 2008).
Apart from the architectural design of repository metadata, the components of repository software are very critical for effective and efficient repository metadata. As being revealed in the fig 1, the repository software components consist of:
Engine
Form builder
Generator
Application
Fig 1: Components of Repository Software
Engine: The engine allows the interface to be integrated with the repository easily, which allows data to be easily accessed from the software products such as Rational Rose (for UML views), Microsoft Word (for reports), TestRunner (automatic testing), ClearCase (configuration control), Mercury Internet Explorer and others. The engine also maintains cache created documents, which could be used to minimize the use of XML parsing and analysis, as well as indexing the names and physical locations of all kinds of documents.
Forms Builder: The form builder creates the visual form that has ability to edit and display the document. Since the form...
Typically, the form and the layout are built upon any level of metadata, the features of the software is very simple to support.
Application. The visual editor is a simple Window application that assists in the creating document as well as editing the document .The component is displayed in the hierarchical forms that assist in the everyday application.
Generator: The generated file includes source code, XML Schemas, SQL that assist in editing the template.
Conclusion
This paper explores metadata repository, and the technical tool of the metadata repository. A metadata repository assists in managing a vital component of the Enterprise Data Management and the metadata is used to create, store, gather and distribute contextual information. The paper also discusses the technique of designing the architecture and software component of the metadata repository. The XML statement is used to design the architectural component while the software components consist of Engine, Form builder, Generator and Application.
References
Lloyd, C.M., Lawson, J.R., Hunter, P.J.,et al. (2008). The cellml model repository.
Bioinformatics 24(18), 2122 -- 2123 .
Marco, D., & Jennings, M. (2004). Universal Metadata Models Chapter 2. Wiley
Marco, D. (2000). Building and Managing the Metadata Repository: A Full Lifecycle Guide. Wiley.
Mayr, C. Zdun, U. & Dustdar, S. (2009). Architectural Decision Model for Reusable Model and Metadata Repositories . Springer-Verlag Berlin Heidelberg. Information System Institute. Vienna University of Technology, Austria.
Ochoa, X. & Duval, E. (2009). Automatic evaluation of metadata quality in digital repositories. Int J. Digit Libr: 10:67 -- 91.
Stausberg, J. Lobe, M. Verplancke, P et al. (2009). Foundations of a Metadata Repository for Databases of Registers and Trials. European Federation for Medical Informatics:409-413.
Application
Form Builder
Generator
Engine
