English heritage Guidelines (http://www.english-heritage.org.uk/upload/pdf/cfa_archaeometallurgy2.pdf?1249209835) clearly state the need for assessment and analysis of metal and metal working evidence.

3.1  Assessment Service of metalworking debris

3.2 Full analysis and reporting of metalworking assemblages

3.3 Integration of metalworking evidence with other data e.g., other crafts, associated finds – see “it bugs me pages”