Crosswalk Exercise - Answers

Shown below are the answers to the Crosswalk exercise in which customer entities and attributes from the Bureau of Land Management's (BLM's) land records data were crosswalked to entities and attributes in the Cadastral Data Content Standard. Also included are some notes and explanations of circumstances which influence decisions made during such a crosswalk.

In case you wish to refer back to information used in the crosswalk, listed below are links to pertinent defintions and diagrams.

The Answers

"John" pertains to BLM entity/attribute customer_name/cust_idv_first_name. For this BLM attribute, the corresponding Cadastral Data Content Standard entity/attribute is:

Agent/Agent ID
Individual/Given Name
Individual/Surname

"William" pertains to BLM entity/attribute customer_name/cust_idv_mdl_name. For this BLM attribute, the corresponding Cadastral Data Content Standard entity/attribute is:

Individual/Given Name
Individual/Other Name
Agent/Alias Agent ID

"Doe" pertains to BLM entity/attribute customer_name/cust_idv_last_name. For this BLM attribute, the corresponding Cadastral Data Content Standard entity/attribute is:

Agent/Agent ID
Individual/Other Name
Individual/Surname

"Jr." pertains to BLM entity/attribute customer_name/cust_idv_suf_name. For this BLM attribute, the corresponding Cadastral Data Content Standard entity/attribute is:

Agent/Alias Agent ID
Individual/Other Name
Individual/Surname

"Junior" pertains to the BLM entity/attribute customer_historical_name/cust_idv_hist_first_name. For this BLM attribute, the corresponding Cadastral Data Content Standard entity/attribute is:

Individual/Given Name
Individual/Other Name
Agent/Former Agent ID

*Note: In BLM, the nickname "Junior" is recognized as a name used formerly, or historically, for a customer. There is no direct correlation in the Cadastral Standard for an historical name. In fact, to accomodate such a name, the Cadastral Standard assigns a "Former Agent ID" to represent the historical name, and then assigns a new Agent ID to correspond to the Former Agent ID, and finally assigns a new Individual entity in which the Given Name of "Junior" can be recorded.

"5/14/94" pertains to the BLM entity/attribute customer_relationship/cust_rel_recs_date. For this BLM attribute, the corresponding Cadastral Data Content Standard entity/attribute is:

Organization/Organization Type
Restrictions/R-Source Date
None

*Note: There Cadastral Data Content Standard has no entity/attribute for recording date information about an Agent's or Individual's relationship or name change.

"57 Rural Highway D" pertains to the BLM entity/attribute customer_address/cust_addr_ln1_txt. For this BLM attribute, the corresponding Cadastral Data Content Standard entity/attribute is:

Public Agency/County
Agent Address/Agent ID
None

*Note: The Cultural and Demographic Link in the Cadastral Standard's Agent Address entity is intended to connect to various descriptive information, including address, which will be established by the Cultural and Demographic Subcommitte of the FGDC.

"Smalltown" pertains to the BLM entity/attribute customer_address/cust_city_name. For this BLM attribute, the corresponding Cadastral Data Content Standard entity/attribute is:

Public Agency/City/Village/Town
None
Agent/Agent ID

"Wyoming" pertains to the BLM entity/attribute customer_address/cust_st_geo_cd. For this BLM attribute, the corresponding Cadastral Data Content Standard entity/attribute is:

None
Public Agency/State
Agent/Agent ID

"Myland Company" pertains to the BLM entity/attribute customer_name/cust_org_ln1_name. For this BLM attribute, the corresponding Cadastral Data Content Standard entity/attribute is:

Organization/Organization Name
Organization/Organization Type
Organization/Division/Department

*Note: In the Cadastral Data Content Standard, when an Individual's business or organization also relates to the land record, then an Alias Agent ID is assigned, a new Agent is created to correspond wto the Alias Agent ID, and the new Agent is in turn is related to the Organization entity where the name of the organization, in this case "Myland Company" can be recorded. This applies also to organization type, shown below.

"for profit" pertains to the BLM entity/attribute customer/cust_nprof ='N'. For this BLM attribute, the corresponding Cadastral Data Content Standard entity/attribute is:

Organization/Organization Name
Organization/Organization Type
Organization/Division/Department

Return to Section 5 which led to this exercise, or use the links below to go to any other Course Section.

Links to the Course Sections and Modules: [Quick Reference] [Introduction] [Section 1: Purpose and Benefits of the Cadastral Data Content Standard] [Section 2: How the Standard Was Developed] [Section 3: Other Standards and Related Activities] [Section 4: Data Modeling Techniques, Rules and Diagram Conventions] [Section 5: Crosswalks, Translations, and Examples] [Section 6: Understanding Compliance with the Standard] [Section 7: Maintenance of the Standard] [Section 8: User and Technical Support] [County Recorder Module] [GIS Specialist Module] [Surveyor Module] [Glossary]

Learning the Cadastral Data Content Standard

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Presented by the United States Department of the Interior Bureau of Land Management, and

the Federal Geographic Data Committee Cadastral Subcommittee