Wayfinder / Case study / Diagram galleries

Source-derived document; reported behaviour, inference and evidence gaps are identified in the text.

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Conceptual information

In this document

What business information does the application manage, and how are those concepts related?

This view identifies the business information represented by the supplied customer, state, order, and item artifacts. “Customer record” describes the declared customer structure and table; “Customer source records” describes the supplied unload excerpt rather than the complete database contents E0007. “Order record” and “Item unload record” are kept separate because the evidence describes distinct order-level and item-level data structures E0007.

Relationships marked inferred represent cross-file semantic interpretation, not proof of database foreign keys or runtime object loading. The evidence does not establish complete database contents, all unload-file field meanings, or that generated Java artifacts are used at runtime E0007E0008.

Diagram

Source-derived diagram. Some relationships may be inferred and require review.

Preparing diagram…

View Mermaid diagram source
classDiagram
direction TB
  class n172ac4fd43c6ed9aa6c5["Customer record"]
  class nd45b02887abe30e42ea8["Customer source records"]
  class nfad33ad01d83e318251a["State"]
  class n25d5d3585ad084a90813["Order record"]
  class n340b3d362c0ddabdfcf4["Item unload record"]
  n172ac4fd43c6ed9aa6c5 .. nd45b02887abe30e42ea8 : Customer data correspondence (inferred)
  n172ac4fd43c6ed9aa6c5 -- n25d5d3585ad084a90813 : Customer order association
  n172ac4fd43c6ed9aa6c5 .. nfad33ad01d83e318251a : Customer state reference (inferred)
  n25d5d3585ad084a90813 .. n340b3d362c0ddabdfcf4 : Order item grouping (inferred)

Elements

Customer record

Kind: entity

Basis: reported

Description: The customer table and the Customer record define a customer number, first and last names, company, two address lines, city, state, ZIP code, and telephone number. Customer forms map their fields to these customer columns, and customer operations support adding, finding, updating, and deleting customer data E0007.

Evidence: E0007

Customer source records

Kind: entity

Basis: reported

Description: The supplied customer unload excerpt contains 18 pipe-delimited records with identifiers from 101 through 118. Each visible record contains an identifier, names, business name, two address fields, city, state, ZIP code, and telephone number; all visible records use the California abbreviation CA E0007E0008.

Evidence: E0007E0008

State

Kind: entity

Basis: reported

Description: The state record defines a two-character state code and a state name. The application loads state rows ordered by state name, and customer state assistance checks whether an entered code exists before allowing a state selection E0007.

Evidence: E0007

Order record

Kind: entity

Basis: reported

Description: The application defines order-level data including order number, order date, purchase order number, and shipping instructions. Order entry first identifies a customer, collects these order fields, inserts the order, and obtains its generated order number E0007.

Evidence: E0007

Item unload record

Kind: entity

Basis: reported

Description: The supplied items.unl excerpt contains six pipe-delimited values per visible row. Its first field is a sequence that commonly restarts when the second field changes; the second field contains identifiers from 1001 through 1015, and repeated second-field values group related rows E0007. The business meanings of these fields are not declared in the unload file E0008.

Evidence: E0007E0008

Relationships

Customer data correspondence

From: Customer record

To: Customer source records

Relation: relates_to

Basis: inferred

Description: The unload records contain the same customer-oriented data categories declared by the customer table and forms—identifier, names, company, address, city, state, ZIP code, and telephone—so the excerpt is consistent with serialized customer records. This correspondence applies only to the supplied excerpt and does not establish the complete database contents E0007E0008.

Evidence: E0007E0008

Customer order association

From: Customer record

To: Order record

Relation: relates_to

Basis: reported

Description: Order entry searches for a customer before collecting order information, and customer deletion is prevented when matching orders exist. These operations establish a business association between a customer and orders, although the evidence does not state a database multiplicity or foreign-key constraint E0007.

Evidence: E0007

Customer state reference

From: Customer record

To: State

Relation: relates_to

Basis: inferred

Description: Customer records contain a state field, while state assistance validates entered state codes against state data and can assign a selected state code back to the customer form. The evidence supports a state-code lookup relationship, but does not establish a database foreign key E0007.

Evidence: E0007

Order item grouping

From: Order record

To: Item unload record

Relation: relates_to

Basis: inferred

Description: The application defines order items separately from order-level fields, inserts item rows after inserting an order, and groups repeated unload rows by their second field. The executable source provides a plausible interpretation of that field as an order identifier, but the unload file itself does not declare the mapping E0007E0008.

Evidence: E0007E0008

Gaps

The supplied evidence does not define the complete schema or prove database foreign keys and multiplicities for the customer, state, order, or item concepts E0007E0008. The items.unl field meanings and the correspondence between its grouping identifier and an order number remain cross-file inferences rather than unload-file metadata E0008. No separate order unload file is supplied, so the order concept is supported by application source rather than by an order-data excerpt E0007. The generated Java customer and state classes model fields consistently, but the evidence does not prove that they are loaded at runtime E0008.

Recovery limitations

  • The view includes explicitly marked inference.

Sources

  • E0007 — SHA256 ce6dd2b00b79f008ecb98935db9ed709c044218bcdd4143008d56d06a04cff97
  • E0008 — SHA256 1713f4e3d42ac5e2af28387ac6ff649f06bbe1683b11869af71326929d6a5f32