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XML Main  |  XML Meta-Lanuages |  XML Sitelog |  XML-Schema |  XSLT |  Purpose |  Status Status Updates 12/04/03 The IGS Site Log Style Sheet used to convert xml-based igs site log documents generated from SOPAC's database into easy to read html documents has been revised. The latest style sheet transforms documents produced by our current xml-encoded igs site log generator tool into html. The previous version transformed xml documents created by the 2002-based xml-encoded igs site log generator tool. 11/25/03 The perl code that generates the xml-based igs site log has been rewritten to output xml-based igs site log documents that can be validated against our revised schema document which uses multiple namespaces. The previous version of the xml-based igs site log generator created documents that validated against SOPAC's 2002 xml-schema document. 11/12/03 SOPAC has restructured the XML Meta-data schema. The latest revision of the schema has been organized into four namespaces: 1) equip namespace : This namespace contains equipment meta-data. 2) contact namespace : This namespace encompasses contact information meta-data. 3) li namespace : This namespace contains meta-data for possible interference sources. 4) monumentInfo namespace : This namespace contains meta-data pertaining to monuments. This approach allows for better organization of the meta-data within the xml-schema document. 10/30/03 The XML Schema has been completely restructured and the single large schema has been broken down into several smaller schemas. Much attention was focused on creating schemas that could be reused entirely within other schemas or extended within other schemas. There are many defined complexTypes and simpleTypes that are reused within multiple schemas as well. However, the multiple schemas are all located in the same namespace and we would prefer better organization. The latest revision SOPAC is working on will divide the schemas into separate namespaces. This will provide better organization for us the developers and clarity for users who may want to use some of our schema components. 08/11/03 SOPAC is currently in the process of developing a tool that will take will use the XML document that is generated by our XML-Based Site Log Generator and transform the XML-Encoded Site Log document into one of the following formats: HTML, ASCII, XML, PDF, PostScript, or Excel. Cocoon will be used to perform the on-the-fly XSLT Transformations on the XML-Based Site Logs. 04/20/03 The XSLT stylesheet that is used to transform the XML-Based Site Log Documents into a HTML Site Log Documents has been completed and is available for view or download on the SOPAC Web Site. 03/26/03 New tool implemented that will generate XML-based Site Logs based on four character site id's. This tool will be available to the general public via the SOPAC XML Site Logs Project web site. 03/14/03 Modifications were made to the schema. SOPAC relaxed constraints on the Monument_Foundation, Geologic_Characteristic, Bedrock_Type, Bedrock_Condition, Fracture_Spacing, Fault_Zones_Nearby, Humidity_Sensor_Model, Pressure_Sensor_Model, and Temperature_Sensor_Model subelements. SOPAC tightened constraints on the Date_Installed, Date_Removed, Telephone_Primary, Telephone_Secondary, and Fax subelements. 03/04/03 Based on input from colleagues at SOPAC, the tags for several elements were modified to be more descriptive. SOPAC began work on an alternate schema. The original schema draft is one long document. The alternative schema SOPAC is working on will break the schema up into multiple schemas. We can then share groups, elements, or attributes between schemas. 01/16/03 The SOPAC XML-based Site Log Project has made considerable progress over the past few months. We are successfully generating XML-based Site Log documents from our database using code written in perl. After taking into account the advantages and disadvantages of the many competing XML Meta-Languages, we decided XML-Schema would best fit our needs. We have created an XML-Schema with many constraints that will ensure the integrity of the data going into the XML Sitelog documents. Currently we are working on implementing an XSLT Style Sheet that can be used to convert our Sitelog XML documents into modified XML documents, html documents, or pdf documents. For our purposes we will converting the Sitelog XML documents into html documents for display on our website.