Project DTR Insists On Using Only The Highest Quality B
Projectdan Tragg Insists On Using Only The Highest Quality Blanks In T
Identify the resources, events and agents. Draw E-R diagrams that illustrate the relationships between these items. In case you need additional assumptions, please make it clear in writing.
Identify tables that you would need to create a working database. For each table, please include the following information: table name, primary key(s), foreign key(s), and other attributes. Use Microsoft Access to create at least three records for each of the tables you identified. Document by printing the window from Access. Create relationships for your various tables and document by printing the relationships window, ensuring that primary key icons appear on the relationships.
Paper For Above instruction
The expenditure cycle at Projectdan Tragg involves various resources, events, and agents that work collaboratively to ensure the procurement of high-quality blanks for manufacturing surfboards. To analyze and model this process, the REA (Resources, Events, Agents) model provides an effective framework. This paper identifies the key components involved, constructs an ER diagram to depict the relationships, and designs the necessary database tables to facilitate efficient processing and record-keeping using Microsoft Access.
Resources, Events, and Agents
The core resources in this cycle include inventory items (blanks), vendors, purchase orders, invoices, and payments. The primary agents comprise production supervisors, purchasing agents, receiving clerks, and the suppliers (vendors). The principal events involve recognizing inventory needs, creating purchase orders, approving and sending purchase orders, receiving goods, entering receipt details, matching invoices with purchase orders, and processing payments.
Entities and Relationships (ER Diagram)
The ER diagram illustrates these components and their interconnections systematically. The core entities are:
- Vendor: with attributes such as VendorID, Name, Address, and ContactInfo.
- InventoryItem: with InventoryID, Description, QuantityOnHand, and Cost.
- PurchaseOrder: with POID, Date, VendorID (FK), and total amount.
- OrderLineItem: with LineItemID, POID (FK), InventoryID (FK), QuantityOrdered, and UnitPrice.
- Receiving: with ReceiptID, Date, POID (FK), VendorInvoiceNumber, and ReceivedQuantity.
- Invoice: with InvoiceID, ReceiptID (FK), InvoiceNumber, Amount, and PaymentStatus.
- Payment: with PaymentID, InvoiceID (FK), PaymentDate, Amount, and PaymentMethod.
The relationships are as follows:
- Vendor supplies InventoryItems via Purchase Orders.
- PurchaseOrder contains multiple OrderLineItems, each tracking a specific InventoryItem and quantity.
- Receiving records the receipt of items linked to a specific PurchaseOrder.
- Invoices are linked to receipts and detail the invoiced amounts.
- Payments are made against invoices, potentially covering multiple invoices or installments.
Any assumptions made include that purchase orders can include multiple items, payments may cover several invoices, and partial payments are possible.
Database Tables Design
| Table Name | Primary Key(s) | Foreign Key(s) | Other Attributes |
|---|---|---|---|
| Vendors | VendorID | - | Name, Address, ContactInfo |
| InventoryItems | InventoryID | - | Description, QuantityOnHand, Cost |
| PurchaseOrders | POID | VendorID | Date, TotalAmount |
| OrderLineItems | LineItemID | POID, InventoryID | QuantityOrdered, UnitPrice |
| Receivings | ReceiptID | POID | Date, VendorInvoiceNumber, ReceivedQuantity |
| Invoices | InvoiceID | ReceiptID | InvoiceNumber, Amount, PaymentStatus |
| Payments | PaymentID | InvoiceID | PaymentDate, Amount, PaymentMethod |
Constructing the Database in Access
Using Microsoft Access, create each table with the specified attributes and set primary keys accordingly. Populate each table with at least three example records, ensuring data diversity and completeness. For example, the Vendors table might contain entries for three different approved vendors, while the PurchaseOrders table includes varied purchase events.
Establish relationships among tables by utilizing the Access relationships window. Link foreign keys to their primary keys accurately, and ensure that referential integrity is enforced to maintain data consistency. Document the relationships window by printing it, verifying that primary key icons clearly appear on each relation.
Conclusion
The analysis demonstrates that an effective database supporting Tragg’s expenditure cycle involves carefully defined entities, relationships, and data attributes. By implementing this design in Access, the company can streamline its procurement process, improve data accuracy, and facilitate efficient processing of purchase orders, receipts, invoices, and payments. This structured approach not only supports operational needs but also enhances organizational control and decision-making capabilities.
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