5. A system for retrieving data while a code script is run interpretively, said system comprising: a script interpreting engine configured to execute the code script during execution of a software application including the code script; a data lookup engine in communication with said script interpreting engine, said data lookup engine configured to execute a tag embedded in the code script, the tag representing a data element whose data value is to be retrieved during execution of the software application; and a database accessible to said data lookup engine, said database storing a library including definitions of a plurality of tags, the definition of each tag being embodied in a set of executable instructions and a set of methods for obtaining data at runtime.
5. A system for retrieving data while a code script is run interpretively, said system comprising: a script interpreting engine configured to execute the code script during execution of a software application including the code script; a data lookup engine in communication with said script interpreting engine, said data lookup engine configured to execute a tag embedded in the code script, the tag representing a data element whose data value is to be retrieved during execution of the software application; and a database accessible to said data lookup engine, said database storing a library including definitions of a plurality of tags, the definition of each tag being embodied in a set of executable instructions and a set of methods for obtaining data at runtime. 6. The system of claim 5 , wherein said data lookup engine is further configured to report retrieved data to said script interpreting engine for executing said code script continuously.