Please Review Attached Doc And Please Answer Belwo Questionsreview The
Please review the additional requirements for the new system (that the current system cannot do) on page 64 (also copied below) and identify any changes to the database (as presented on pages) needed in order to meet these additional requirements. Your deliverable will consist of the following:
- List the new/additional requirement
- State if it necessitates a database change
- If it does not necessitate a database change, state why
- If it does necessitate a database change, identify table and/or columns that change impacts
- Provide SQL DDL to update such tables and SQL DML to insert sample data demonstrating that the requirement is met
- Provide SQL Selects for the test cases above
Capability New to DIWS 2
The following enhancements shall be included in the DIWS 2 HR application.
The DIWS 2 HR capabilities shall include:
1. Provide the ability for the user to select whether documents are presented in date order or document type order for document retrieval.
2. Provide the user with the ability to select the column for sorting when looking at a list of documents.
• For example, this could be implemented similar to the arrow in Excel column headings for ascending and descending sorts.
3. Provide the ability to send scanned documents via e-mail as either an attachment or as a link to the document.
4. Automatically ingest HR documents and supporting documents sent via email to a particular in-box, whether the documents are included in the body of the e-mail or as an attachment.
• The process should be automatic in that an incoming e-mail inbox is monitored and the e-mail is automatically captured from the inbox and information about the sender, send date/time, and subject are
used for indexing the body of the e-mail and/or attachments.
5. Automatically ingest HR documents and supporting documents sent via fax.
• For example, capture the incoming fax document without requiring the fax document to be printed and scanned.
• The process should be automatic in that an incoming fax line is monitored and the fax is automatically captured, and information about the sender, send date/time, page count, and subject are used for indexing the fax document.
6. Provide the following exit interview capabilities: exit interview surveys checklists for exit interviews folders and document types for all electronic exit interview documents queries and reports on the statistics on the reasons for leaving ability to export the exit statistics to Excel spreadsheets.
Paper For Above instruction
Analysis of Additional System Requirements and Database Impact
Introduction
The evolution of Human Resources Information Systems (HRIS) like DIWS 2 necessitates the continuous addition of new functionalities to meet organizational needs and improve operational efficiency. The newly outlined capabilities for DIWS 2, as detailed in the instructions, encompass document management enhancements, automated document ingestion, and advanced reporting tools for exit interviews. Analyzing these requirements reveals their impact on the existing database schema, which is crucial for seamless integration, performance, and data integrity.
Detailed Analysis of New Requirements and Database Impacts
1. Document Presentation Order Selection
Requirement: Allow users to switch between date order or document type order in document retrieval.
Database Impact: Minimal; primarily UI-related. However, for effective retrieval, the document's display order depends on the date or type stored as attributes.
Existing Tables: Assuming a "Documents" table with "document_type" and "date_uploaded" columns.
Impact: Might necessitate indexing these columns for faster sorting.
Conclusion: No schema change needed; only ensure proper indexing.
2. Custom Sorting Column Selection
Requirement: Enable users to select any column for sorting retrieved documents, similar to Excel.
Database Impact: No change in schema. Sorting is dynamically handled during query execution based on user choice.
Impact: No schema modification required.
3. Sending Scanned Documents via Email (Attachment or Link)
Requirement: Provide functionality to send documents via email, either as attachments or as links.
Database Impact: No schema change needed; likely involves email URL links stored or generated as needed.
Impact: Possible addition of a "document_url" or "email_link" column if links are stored separately.
Conclusion: If links are stored, a new nullable column may be added to the "Documents" or "Emails" table.
Sample SQL (if adding a link column):
ALTER TABLE Documents ADD COLUMN email_link VARCHAR(255);
4. Automatic Ingestion of HR Documents via Email
Requirement: Monitor an email inbox for incoming HR documents, index sender, date, subject, and body/attachments.
Database Impact: Need a table to store inbound email data and attached documents.
Suggested Table: "EmailIngestion" with columns for sender, received_date, subject, body, attachment_path, and document_type.
Impact: Table addition; no change to existing document tables.
Sample SQL (DDL):
CREATE TABLE EmailIngestion (
id INT PRIMARY KEY AUTO_INCREMENT,
sender VARCHAR(255), received_date DATETIME, subject VARCHAR(255), body TEXT,
attachment_path VARCHAR(255), document_type VARCHAR(50)
);
Sample DML:
INSERT INTO EmailIngestion (sender, received_date, subject, body, attachment_path, document_type)
VALUES ('john.doe@example.com', NOW(), 'HR Policy Document', 'Please see attached', '/attachments/hr_policy.pdf', 'HR Document');
5. Automated Ingestion of Faxes
Requirement: Monitor fax lines, capture received faxes, extract sender info, date/time, page count, subject, and store accordingly.
Database Impact: Establish a "FaxDocuments" table similar to email ingestion, with additional "page_count".
Impact: Table creation, no schema change to existing tables.
Sample SQL (DDL):
CREATE TABLE FaxDocuments (
id INT PRIMARY KEY AUTO_INCREMENT,
sender VARCHAR(255), received_date DATETIME, page_count INT,
subject VARCHAR(255), file_path VARCHAR(255)
);
Sample DML:
INSERT INTO FaxDocuments (sender, received_date, page_count, subject, file_path)
VALUES ('faxsender@company.com', NOW(), 3, 'Confidential Report', '/faxes/fax12345.pdf');
6. Exit Interview Capabilities
Requirement: Store exit interview surveys, checklists, document types, and support queries, reports, and exporting to Excel.
Database Impact: Extended schema with tables to hold survey responses, checklist items, interview documents, and statistics.
Proposed Tables:
"ExitInterviews" (id, employee_id, date, survey_response, comments)
"ExitChecklists" (id, interview_id, checklist_item, status)
"ExitDocuments" (id, employee_id, document_type, upload_date, file_path)
"ExitStatistics" (id, reason_for_leaving, count)
Sample SQL (DDL):
CREATE TABLE ExitInterviews ( id INT PRIMARY KEY AUTO_INCREMENT, employee_id INT, date DATETIME, survey_response TEXT, comments TEXT );
CREATE TABLE ExitChecklists ( id INT PRIMARY KEY AUTO_INCREMENT, interview_id INT, checklist_item VARCHAR(255), status BOOLEAN
);
CREATE TABLE ExitDocuments ( id INT PRIMARY KEY AUTO_INCREMENT, employee_id INT, document_type VARCHAR(50), upload_date DATETIME, file_path VARCHAR(255)
);
CREATE TABLE ExitStatistics ( id INT PRIMARY KEY AUTO_INCREMENT, reason_for_leaving VARCHAR(255), count INT
);
Export function to Excel would be handled at the application layer, exporting data retrieved via SELECT statements.
Conclusion
Many of the new requirements primarily impact the application layer, especially in user interface and external integrations like email and fax. However, some enhancements involve schema modifications, particularly for automated data ingestion and storage of new data types (emails, faxes, exit interview data).
Proper indexing and normalization are essential for performance, especially as data volume grows. These schema adjustments will enable the DIWS 2 HR system to meet the outlined capabilities effectively, ensuring seamless data processing, retrieval, and reporting functionalities.
References
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Silberschatz, A., Korth, H. F., & Sudarshan, S. (2010). Database System Concepts. McGraw-Hill Education.
Rob, P., & Coronel, C. (2009). Database Systems: Design, Implementation, & Management. Cengage Learning.
Groff, J. R., & Weinberg, P. (2013). SQL: The Complete Reference. McGraw-Hill Education.
Coronel, C., & Morris, S. (2015). Database Systems: Design, Implementation, & Management. Cengage Learning.
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