Hospital Business Use Case Diagram

A use case diagram—

• Presents a high-level view of how the system is used as viewed from an outsider's (actor's) perspective.
• Depicts the behavior of the system visually.
• May depict all or some of the use cases of a system.
• Can be used during analysis to capture system requirements and understand how the system should work.

The NPCR–AERRO Hospital Cancer Registry Business Use Case Diagram shows the business process of a hospital cancer registry and its interaction with business workers and business actors. A business worker acts within the system, performs the processes, and interacts with other business workers and business actors. A business actor plays a role in relation to the business in the business environment, affecting it externally. In the diagram below, the actors perform different hospital registry functions, and the results of the actions are used by the recipients.

A text description of the diagram and legend may be found below. For information about reading diagrams, see Diagram Conventions.

• Hospital Data Source Employee
  A business actor who works for a data source inside the hospital. He or she interacts with the central cancer registry during the initial phase of the business process when event reports are prepared and transmitted.
• Non-Hospital Data Source Employee
  A business actor who works for a data source outside the hospital. He or she interacts with the central cancer registry during the initial phase of the business process when event reports are prepared and transmitted.
• Hospital Registrar
  A business worker who validates event reports; links patients and tumors; performs consolidation, audits, quality assurance, and rapid case ascertainment; links to external data sources to improve data and for research; conducts death clearance, follow-up, and interstate data exchange; responds to calls for data; and provides data for use by others.
• Physician
  A business actor who performs the functions of quality assurance/quality improvement and analysis.
• Certify a Data Source for Electronic Reporting
  The Use Case describes the process for evaluating and subsequently certifying a Data Source as being qualified to perform electronic reporting that meets cancer registry standards.
• Prepare and Transmit Event Report
  The process whereby a data source submits event reports to the central cancer registry, using established criteria for record layout format, required event report types, required data items, and transmission standards.
• Receive Batch File
  To verify that a group of event reports meet the standards for record layout format, and that the batch has not been submitted previously.
• Validate Event Report
  To verify that information submitted on an event report represents a reportable case and meets logic, consistency, and data validity standards.
• Perform Casefinding and Passive Follow-Up
  To verify that information submitted on an event report represents a reportable case, and update vital status and other follow-up information for patients with an abstract in the cancer registry.
• Perform Abstracting
  To collect and record pertinent cancer data from a health record.
• Validate and Edit Abstracted Data
  To verify that information in the cancer registry abstract meets logic, consistency, and data validity standards.
• Conduct Active Follow-Up
  To obtain updated information annually regarding a patient's health status to ensure continued medical surveillance.
• Submit Data to Cancer Registry and National Cancer Data Base
  To submit cancer information to various organizations to meet state and accreditation regulations, and assist in research activities.
• Perform Quality Assurance/Quality Improvement
  Quality improvement is a planned set of activities by which the cancer registrar monitors quality and takes appropriate remedial action to improve future quality, maximizing correct reporting and characterizing the reporting process in measurable terms. Quality assurance is a formal review of patient records to evaluate case completeness and data quality.
• Perform Analysis
  To analyze collected cancer data and convert it into information about treatment, survival, and other factors affecting cancer patients. To perform statistical analysis on collected data to provide interpreted information on cancer for a particular population.
• Data User
  A business actor who interacts with the hospital registry during analysis.
• Regional and Central Registries
  A central cancer registry that collects, processes, and analyzes data on all cancer cases diagnosed. It is a business actor that interacts with the hospital registry during reporting.
• Commission on Cancer's National Cancer Data Base
  The National Cancer Data Base, a joint program of the Commission on Cancer (CoC) and the American Cancer Society (ACS), is a nationwide oncology outcomes database for more than 1,400 Commission-approved cancer programs in the United States and Puerto Rico. These data are used to explore trends in cancer care, create regional and state benchmarks for participating hospitals, and to serve as the basis for quality improvement. The NCDB interacts with the hospital registry during editing, reporting, and quality improvement/quality assurance. It is a business actor.
• Clinical Trial Researcher
  A business actor who interacts with the hospital registry during casefinding and passive follow-up, and reporting.

Business Use Case Diagram Legend

Actors

Actors include hospital data source employees, non-hospital data source employees, hospital registrars, and physicians.

Functions

Functions include certifying a data source for electronic reporting, preparing and transmitting event reports, receiving batch files, validating event reports, performing casefinding and passive follow-up, performing abstracting, validating and editing abstracted data, conducting active follow-up, submitting data to the central cancer registry and the National Cancer Data Base, performing quality assurance/quality improvement, and performing analysis.

• Hospital and non-hospital data source employees certify a data source for electronic reporting and prepare and transmit event reports.
• Hospital registrars receive batch files, validate event reports, perform casefinding and passive follow-up, perform abstracting, validate and edit abstracted data, conduct active follow-up, submit data to the central cancer registry and the National Cancer Data Base, perform quality assurance/quality improvement, and perform analysis.
• Physicians perform quality assurance/quality improvement and analysis.

Recipients

Recipients include the data user, regional and central registries, the National Cancer Data Base, clinical trial researchers, and the Commission on Cancer.

• The data user receives analysis results.
• Regional and central registries receive submitted data.
• The Commision on Cancer's National Cancer Data Base receives submitted data and performs quality assurance/quality improvement.
• Clinical trial researchers receive the results of casefinding and passive follow-up, and submitted data.