11. A computer program product for estimating a labor cost to reconcile semantic conflicts between data schema terms used in different data sources, the computer program product comprising: a computer readable storage media; first program instructions to estimate a labor cost for mapping, to shared ontology terms, respective pairs of the data schema terms having semantic conflicts with each other, the first program instructions estimating the labor cost based on at least five of the following: (a) a number of the data sources that contain the data schema terms having the semantic conflicts, (b) an approximate number of the data schema terms in each of the data sources, (c) an approximate labor cost for implementing the shared ontology terms for each of the data sources, (d) an approximate labor cost to manually map to the shared ontology terms a percent of the data schema terms in each of the data sources, (e) an approximate labor cost to validate a percent of the mappings from the data schema terms to the shared ontology terms, (f) an approximate labor cost to perform functional computation for a percent of the mappings from the data schema terms to the shared ontology terms, and (g) an approximate labor cost to perform structural heterogeneity semantic mapping between a percent of the data schema terms and the shared ontology terms; and second program instructions to initiate display on a monitor the estimated labor cost for the mapping, to the shared ontology terms, the data schema terms having semantic conflicts with each other; and wherein the first and second program instructions are stored on the computer readable storage media.
11. A computer program product for estimating a labor cost to reconcile semantic conflicts between data schema terms used in different data sources, the computer program product comprising: a computer readable storage media; first program instructions to estimate a labor cost for mapping, to shared ontology terms, respective pairs of the data schema terms having semantic conflicts with each other, the first program instructions estimating the labor cost based on at least five of the following: (a) a number of the data sources that contain the data schema terms having the semantic conflicts, (b) an approximate number of the data schema terms in each of the data sources, (c) an approximate labor cost for implementing the shared ontology terms for each of the data sources, (d) an approximate labor cost to manually map to the shared ontology terms a percent of the data schema terms in each of the data sources, (e) an approximate labor cost to validate a percent of the mappings from the data schema terms to the shared ontology terms, (f) an approximate labor cost to perform functional computation for a percent of the mappings from the data schema terms to the shared ontology terms, and (g) an approximate labor cost to perform structural heterogeneity semantic mapping between a percent of the data schema terms and the shared ontology terms; and second program instructions to initiate display on a monitor the estimated labor cost for the mapping, to the shared ontology terms, the data schema terms having semantic conflicts with each other; and wherein the first and second program instructions are stored on the computer readable storage media. 15. The computer program product of claim 11 further comprising: third program instructions to estimate a labor cost to create an information wrapper to map terms in unstructured text to structured terms in a table-structured database; and the second program instructions initiate display on the monitor of the estimated labor cost to create the information wrapper; and the third program instructions are stored on the computer readable storage media.