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Component Software Development This assignment is accompanied with a case study describing a high-level system specification for an application

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Component Software Development

This assignment is accompanied with a case study describing a high-level system specification for

an application. You are required to provide UML models for only ONE appropriate use case.

Assignment Tasks:

Task 1

UML Models

Develop a Use case model with ONE use case. As part of your answer produce the use case

description and use case scenario.

Produce a Class diagram with appropriate refactoring and abstraction, related to the selected use

case. As part of your model, produce a system class with clear set of public methods.

Produce a Sequence Diagram for the selected use case. Include possible guards, iteration, and

message operations in your diagram.

[40 marks]

Instructions for Task 1

•  captured the application functionality in a use case diagram. Use case Description.
• provide a class diagram which captures all elements of the system. Class diagram with appropriate refactoring and abstraction.
• Explore the issues involved in the engineering task required and software design required
• The main functions that must be provided by the system
• Document your engineering analysis findings
• Apply the required level of abstraction in your models
• Produce a sequence model associated with your given use case scenario

 

 

 

 

 

 

 

 

Task 2

Object Constraint Language (OCL)

Incorporate OCL to represent the business logic, rules and constraints for the selected use case.

As part of your solution include the correct syntax for pre and post conditions, navigation, and

multiplicities. Produce a list of appropriate business rules and constraints.

[10 marks]

Instructions for Task 2

• Produce correct OCL to represent the business logic, rules and constraints for the use case?
• Include the correct syntax for multiplicities

Notes:

Your report should be a single PDF document containing model diagrams.

Java implementation is NOT required for this coursework.

 

Case Study

LH Medical Company (LHM)

                                                                    Case Study

 

LHM is a London based privately owned hospital which provides healthcare to its patients. The

hospital uses in-house software to manage and service its patients which they refer to as clients.

It is an expanding venture and needs to accommodate for processing its information globally.

The practice management system is web enabled and multi-platform for connectivity via web

services, in addition it has connectivity to existing legacy systems. An enterprise document

management system ensures patient documents are replicated globally and available per

demand.

In addition to medical treatments, medicine and drugs, consultation and vaccinations are offered

to its patients (with a variable additional fee) the company offers medical instruments to other

companies either to purchase or to lease.

LHM records the details of its clients with possibly their full medical history in their computer

system. When a new patient requests an appointment (walk-in or on-line) a treatment course

begins and a practitioner is allocated to the patient. A full history and previous medical records

are printed showing different categories of Treatments during different time intervals. Analyses

are drawn in terms of any possible allergies and previous histories. Treatments may involve

many surgeons and consultants depending on its complexity.

The contact practitioner is responsible for estimating the costs of treatments that is agreed by the

client at the start of the treatment. The duration of the treatment may be set at any time duration

and may also be changed during the treatment depending on the complexity of possible

operations. The final cost and completion date are recorded at the end of the treatment.

During a treatment process, notifications may be sent to patients and other practitioners.

Repeat prescriptions may automatically be produced by the system if appropriate and are

available for collection at any surgery by the patient. At any time, a practitioner may suspend or

cancel the prescriptions.

The cost for a treatment is paid for by the client or an insurance policy provided by a number of

insurers. Insurance policies may have additional surcharges and costing depending on treatment

types and medicines. Long term treatment courses may be edited or cancelled by practitioners

or clients. To re-start an existing treatment an additional fee is applied.

LHM may receive requests for specialise treatments from other hospitals or they may refer clients

to other medical centres.

Each treatment course or service may include one or more of the following items:

• Operations and vaccinations

• Consultations and check-up

• Medicine and different types of tablets

• Clinical reports and attached documents and history

• Prescriptions and repeat Prescriptions

A treatment course comprising services from other hospitals carry additional changes set by the

medical service providers. A full list of Treatment courses may be requested by the site manager

at any time