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Hospital Management System
SYSTEM DESIGN
1. Introduction
The purpose of design phase is to plan a solution for problem
specified by the requirements. System design aims to identify the
modules that should be in the system, the specification of those
modules and how they interact with each other to produce the
result. The goal of the design process is to produce a model or
representation of a system can be used later to build that system.
The produced model is called design of the system.
2. Applicable Document
As the project is user friendly, it can be applied to large
database with more information. This software can be used by
hospital management to make the work simple. They can get
information quickly as possible. It can handle large volume of data
and present the report whenever required. In this project, we use
SRS as the applicable document.
3. Functional Decomposition
Functional decomposition refers broadly to the process of
resolving a functional relationship into its constituent. Parts in
such a way that the original function can be reconstructed from
those parts by function composition. In general, this process of
decomposition is undertaken either for the purpose of gaining
insight into the identity of constituent components (which may
reflect individual physical processes of interest, for example) or for
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Hospital Management System
the purpose of obtaining a compressed representation of the global
function, a task which is feasible only when the constituent
processes possess a certain level of modularity.
4. Functional Component and Assumptions
4.1. Administration module:Administrator can view all the details of the hospital
record.
4.2. Inpatient module:This module is used to store details of patients who are
admitted.
4.3. Outpatient module:The outpatient module contains details of the patient who are
came for check_ups.
4.4. Lab module:Lab module is used to generate laboratory reports.
4.5. Billing module:Billing module is used to calculate the bill of the patient.
5. Description of the Program
5.1. Context Flow Diagram:-
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Hospital Management System
A context flow diagram is a 0th level DFD.It only contains
one process node that generalizes the functions of the entire system
in relationship to external entities.
Administrator/user
Authentication
Hospital
Management
System
Lab reports, bill
Statement
Hospital Database
5.2. Data Flow Diagram
A Data flow diagram is a graph showing the flow of data
values from their sources in objects through processes that
transform them to their destination in other objects.
A DFD also known as “bubble chart”, has the purpose of
clarifying the system requirements and identifying major
transformation that will become programs in system design.So, it is
the starting point of the design phase that functionally decomposes
the requirements specifications down to the lowest level of detail.A
DFD consists of a series of bubbles joined by lines.
DFD use a number of symbols to represent systems. Most Data flow
modeling method use 4 kinds of symbols to represent four kinds of
system components:-
Symbols
Description
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Hospital Management System
Process
A
process
shows
a
transformation
or
manipulation of data flows
within the system.
External entity
External
entities
are
outside the system, but
they either supply input
data into the system or use
system output.
Data flows
A data flow shows flow of
information from source to
destination. A data flow is
represented by a line, with
arrowhead showing the
direction of flow.
Data base
Database
is
a
huge
collection of data. It is
used for storage purpose.
1st level DFD
Receptionist
Login
1.1
Password
Authentica
tion
Valid user
1.2
Patient
Detail
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Hospital Management System
Database
Check up
Patient info
Database
1.4
Treatment
process
Lab
1.3
Reports
Lab Process
Patient &lab report
1.6
Report
Generating
And
Reports
Bill
Patient
1.5
Bill/charge Database
Calculation
Of bills
Database
Level 2 DFD (1.4)
Admitted patient
1.4.1
Inpatient
Lab report
Treatment
Lab report
1.4.2
Outpatient
Patient came for checkup
Treatment
Database
Lab report &patient report
Calculati
on of
bills
Lab report &patient report
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Hospital Management System
Database
Level 2 DFD (1.5)
Charges for inpatient
Database
1.5.1
Inpatient
Health card amount
Calculate
Billing
Lab charge
Billing
Charges for outpatient
Outpatient
Health card amount
Billing
Database
Lab charge
Database
5.3. Description of Component
5.3.1. Administration module:Input: - User Name, Password
Process Definition: - Login to the system
Output:-If login is successful then administrator can
view and update the records.
5.3.2. Inpatient module:-
Generating
report
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Hospital Management System
Input: - Inpatient detail
Process Definition: - Information about the treatment given
to the patients who are admitted.
Output: - Information about the patient.
Interface with other module: - The inpatient details are
necessary for lab reports and billing.
5.3.3. Outpatient module:Input: - Outpatient detail
Process Definition: - This module has the information
about the treatment given to the patient who are came to check up.
Output: - Information about the patient.
Interface with other module: - The outpatient details are
necessary for lab reports and billing.
5.3.4. Lab module:Input: - Patient ID, Category
Process Definition:-Laboratory reports of the patient.
Output: - Lab report and charge.
Interface with other module: - This module requires
information from inpatient and outpatient modules.
5.3.5. Billing module:-
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Hospital Management System
Input: - Patient ID
Process Definition:-Calculates bill and deduct amount if
any card facility is available.
Output: - Bill.
Interface with other module: - Billing module requires
information from inpatient and outpatient modules.