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

Capability hierarchy

Subjects and elements	Diagram	Sources
Customer management; Customer creation; Customer query and browse; Customer update; Customer deletion; Order entry; Order creation; Line-item entry; Customer-based order viewing; Order update; Order deletion; Stock management; Reporting; Mailing-label reporting; Accounts-receivable reporting; Backlog reporting; Stock-list reporting	Diagram; 2 recorded gaps	E0001, E0002, E0003
Business operations; Customer maintenance; Order entry; Stock management; Reporting	Diagram; 1 recorded gaps	E0004, E0005, E0006
Customer management; Add customer; Find customer; Update customer; Delete customer; Order entry; Add order; Find order; Update order; Delete order; Stock management; Add stock; Find stock; Update stock; Delete stock; Reports; Mailing labels; Accounts receivable; Backlog reporting; Stock-list reporting	Diagram; 1 recorded gaps	E0007, E0008
Customer management; Customer search; Order management; Order entry; Item entry; Order browsing; Privileged order totals; Reporting; Mailing-label reporting; Accounts-receivable reporting; Backlog reporting; Stock-list reporting; Main menu navigation; Privileged menu access	Diagram; 1 recorded gaps	E0008, E0009, E0010
Customer maintenance; Order management; Order entry; Invoicing; Stock management; Reporting	Diagram; 2 recorded gaps	E0011, E0012, E0013
Customer management; Customer creation; Customer lookup; Customer update; Customer deletion; Order entry; Order creation; Order lookup; Stock management; Reporting; Mailing-label reporting; Accounts-receivable reporting	Diagram; 1 recorded gaps	E0001, E0002, E0007
Customer management; Customer maintenance; Order entry; Order creation; Customer-order viewing; Stock management; Stock item maintenance; Reporting; Mailing labels; Accounts receivable reporting; Backlog reporting; Stock-list reporting	Diagram; 1 recorded gaps	E0001, E0002, E0003, E0007
Stock management; Add stock; Find stock; Update stock; Delete stock	Diagram	E0003, E0004, E0007
Customer management; Customer maintenance; Order entry; Order creation; Customer order lookup; Stock management; Reporting; Mailing-label reporting; Accounts-receivable reporting; Backlog reporting; Stock-list reporting	Diagram; 2 recorded gaps	E0001, E0002, E0004

Harten documentation of the Informix 4GL and Java source repository, from the retained 17 October 2026 export. The exact upstream revision analysed is not established. Source findings do not establish runtime behaviour or equivalence between the implementations.

Evidence identifiers are retained for traceability. The underlying analysis records are not included in this public edition; credential values are redacted. About this case study.