A new patient management system is to be developed to support the operation of a
ID: 3685811 • Letter: A
Question
A new patient management system is to be developed to support the operation of a large dental practice. The system will be used by the dentists, dental nurses, and reception staff. The system will keep track of the scheduling of various types of appointments (e.g. cleaning, extraction, fillings, etc.) for new and existing patients.
An introduction which outlines the business case: Project name, description, project goal and criteria for project success.
The SDLC approach you would choose for this project.
The pros and cons of different SDLC approaches should be evaluated in order to come to a decision.
You should include a conclusion which states the choice and a summary of why this SDLC approach was chosen.
A list of requirements (functional and non-functional) and constraints must be devised.
Use cases (diagrams and descriptions) for the project must also be developed.
Finally, complete the Project Schedule by developing a Work Breakdown Structure (WBS).
This phase should have the phases, milestones, activities, resources and estimates included in it.
Explanation / Answer
SDLC is the acronym of Software Development Life Cycle. It is also called as Software development process. The software development life cycle (SDLC) is a framework defining tasks performed at each step in the software development process.
SDLC has been used because:
1. Clear project objectives.
2. Stable project requirements.
3. Progress of system is measurable.
4. Strict sign-off requirements.
List Of Requirements :
Functional :
The software must allow input of patient data from patient (initial) home, secured access at Physician and Nurse Workstations, and from the data streaming real-time monitoring equipment.
Note. A web-based system can allow initial patient information to be gathered by a dumb terminal in office or from patient’s own computer upon Email appointment verification hyperlinked to a web-based input screen.
The software must request username and password for access to data, only after authentication will allow access to the system.
The software must require high levels of error correction and input validation.
Note. Message box prompts would require a second entry of key data fields including name, DOB, Social Security Number, medications and allergies. Doctor’s inputs will similarly prompt proper code sets for diagnosis.
The software must allow browsing by the physician of historical medical information of his/her patients only.
The software must identify the patient by a unique numeric identifier derived from a function performed on the patient’s birth date.
Note. Algorithm will be simply TODAY-BIRTHDAY = NUM& Doctor key & Increment
(Increment will be added if duplicate number found in Database.)
The software must retrieve, update, and store data from multiple input locations including but not limited to hospital workstations, physician workstations, inbound emergency vehicles, and electronic monitoring equipment.
The software must allow patient to view their own medical record online allowing changes only to address, phone number, and insurer after initial input.
The software must only allow deletions by the vendor and only after archiving data in flat file format.
Note. Deletions will only be performed at the request of the patient or the decedent’s heirs in compliance with HIPAA guidelines.
The software to be developed must display the correct patient name.
The software to be developed shall display the correct time of day in compliance with ISO 8601.
The software to be developed must operate without interruption twenty-four hours a day.
The software must allow full and complete record search queries by physicians; also allow access to limited bloodwork, medication, and allergen information by EMT personnel and display results in order specified by operator.
The software must allow input of diagnostic imagery and FAT32 compression for storage and transmission of data.
The software must enable out put of real-time data and imagery from electronic diagnostic equipment through java applets which run in the web browser.
Note: Nurses at workstation or doctors at desktop can access this data.
The software must retrieve and sort medical record information and allow for screen and print output of said information.
Note. Print output will include name, DOB, and requested diagnostic information only.
The software must encrypt the data using Rijndael (AES) encryption algorithms from the database for transmission from point to point.
Non Functional Requirements :
The software interface must follow design conventions which allow for familiar location of drop down menus, help etc.
Input errors will be returned in red with appropriate message box.
More than three attempts at login and failure will produce a red flag to system administrator.
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