employment database management system2

8/2/2019 Employment Database Management System2

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Systems programming assignment1

Author: Ponatshego Kgagawe

TABLE OF CONTENTS

Botswana Accountancy


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Introduction.............................................................................................1

Constraints .............................................................................................1

Resources.................................................................................2

Project schedule......................................................................................3

Analysis..5-12

Design..13-12

1Introduction


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HR consultancy company is established to register companies which need personnel in different

functional areas. It conduct some market researches on posts, job descriptions, qualification

requirements etc. it needs to develop an employment database management system which will

help in the processing employment procedures in an efficient and effective taking opportunities

of available electronic technologies in a secured environment. It also manages other companies

records eg number of personnel in each company, number of resignations. It produces annual

reports on labor issues in the country. The database objectives are to:

Captures and stores all the vacancies available online

stores all the employees information

Captures and stores all the applications submitted online

Sort the applications which qualifies for interviews

post the vacancies, listed applicants for interviews, successful candidates in the website

Constraints

the employment database system requires the use of a distributed system which need basic

knowledge of networking eg different infrastructures used by different users in a distributed

system, different technologies with different compatibility standards can have bad effects in the

performance of the system.

The security of the system is at risk because the website used can introduce a lot of threads to

the system. The system has poor integrity because users are not part of the organization.

Replication of will need large storage space to store multiple files. It can reduce performance of

write operations because the system has high updates.

Since many users will be accessing the system concurrently in different geographical locations

then consistency is compromised due to the conflicts of write and reads operations.

The communication failure can affect the system because the system is geographically

distributed.

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Resources


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The resources needed will be the implementation of the network to enable the communication of

the database with the website. The network installed and configured should be either in

software and Hardware devices. The database software used is My SQL. The web

developments tools and software(s) are Java and eclipse. The database is developed by

programmers and maintained by the database Administrators.

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Analysis

These is a phase where requirements definition is done. The first activity is determining

requirements needed to develop a system.fact finding tools eg JAD, questionnaires, document

revision of old systems are used to collect more information about a new system.information

which need to be collected from stakeholders companies should be done by JAD,

questionnaires, document revision. The effective methods of conducting JAD is to invite

systems developers from this company, the users(applicants), the stakeholder HR managers in

a discussion and collect information from them. The is collected by use of questionnaires should

be done in a written form but educating the users about indicators is done.The functional

requirements needed is the vacant post Information system which contains the following data

atrributes:

Job tittle

No. of employees needed

Qualification requirements

Status of the post(permanent/temporary/contract details)

salary

Current Employees information

Structure of the company

Information needed from education board should be collected using JAD and questionnaires.The information needed will help to measure which skills are offered by a qualification in the

market. The functional requirements needed is thequalification Information system which

contains the following data atrributes:

Courses offered

Number of students

Skills offered in each course

Information is needed from employment agencies is also collected using questionnaires.

Information to be collected will help to measure which qualification and skills are required foreach post, to measure scares skills required and abundant skills not needed. The functional

requirements needed is the employment status Information system which contains the

following data atrributes:

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Post tittles


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Qualification required

Number of employees in a post

Number of available posts without employees

Number of unemployed applicants

Information is neede from customers is collected using application forms which helps to select

candidates which qualify for the post. The functional requirements needed is theapplication

Information system which contains the following data atrributes:

Name

Omang Number

Age

Qualification

Experience

Information needed from stakeholders is collected using the JAD which will help to conduct

interview. The functional requirements needed is the interview Information system which

contains the following data atrributes:

Required functions of a post

Skills needed from a candidate

Experiences of a candidate

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Non fuctional requirements


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Information is also collected from the systems and network administration section to help in the

recommendations made about the available resources eg strengths/weakness of softwares,

hardware and devices.

The system will be developed using java application software, eclipse, mySQL DBMS.

The network suitable for this system is a WAN because the system is distributed

The architecture suitable for this system is client server because it can work in a middleware

whereby there is different computers, operating systems, applications used.

The client server also effectively separates the presentation from the data management and

analysis. Presentation is enabled by using the API and analysis and management is using

mySQL DBMS.

The standards used to develop this system using the internet is by using HTTP to enable

accessibility of web pages by users in client computers. The HTML enables the web pages to

be presented to the clients.

Security measures should be implemented by using the application architectures, installing

firewalls(application/hardware) in routers, installing antivirus in the system.

Backup is centrally done in the server.

The server manages replication process.

Data is managed by the systems administrators

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Requirements structures


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The second activity is to design a structure for requirements needed by the system. this is

where process, flow of data structures, data storage and data sources are defined using DFDs.

Entity relationships are defined using attributes to indicate the common attributes in different

entities, degrees and cardinalities at which they relate.

Use case diagrams are used to define functional iterations carried out in the system.

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Stakeholder1


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Use Case diagram is used to show functional iterations of the system

Update Vacant

post system

Vacant post

file

Update

application

system

customer

Candidate

list file

Update

employmentsystem Employee

file

Stakeholder2

Update

qualification

system

Qualification

fileStakeholder3

Update

employment

system

Employment

file


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Stakeholder1(actor)

Stakeholder2(actor)

Stakeholder3(actor)

customer(actor)

database adminstrators

systems developers

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Issue vacant post information

Receives information about the success customer

Issue qualification information

Issue employment status information

Receives employmet status from HR consultancy

browse the web

input data

update the database

update the web


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Entity relationships is used to show the degree and cardinality at which attributes in the entity

participates in relationship

`

One post need more employees

One post have one qualification

One applicant have more qualifications

One post need has more applications

One employment has more applications

One post has more employees

Functional operations of the system

Vacant postJob tittleNo. of empsQual reqStatusSalary

QualificationqualificationNo. studentsSkills offered

Employment info job tittleQual reqNo. emps in a postNo. avail postswithout employeesNo. unempapplicants

ApplicationNameOmang Number

AgeQualificationExperience

employees

company nameNameJob tittle


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The system uses query operators to enable users to view information in the web eg candidate

list page.

The system uses constructor operators to enable users to add data into the database eg data is

added to vacant post, qualification and applicant page.

The system uses scope operators to enable sorting of data to produce a short list of applications

eg application file is processed into candidate list file.

The system uses update operators to update data eg the customer, DPSM, DSPW pages

captures data which add and updates the application, employee and qualification files.

Data is added, deleted by users online, data is searched, sorted and updated by DBA.


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DESIGN PHASE

The design phase is whereby the requirement specification is being developed. Data files are

structured into normalized tables, the data dictionaries are developed. Interfaces and data file

tables are which are used as prototypes. Testing is done using the interfaces and data file

tables. Reports are analyzed. The program specification is also developed.

Data dictionary

The data dictionary is developed using 5 tables. This is where the attributes are defined. The

definition are primary, foreign keys(PK,FK), data types and domains.

Vacant post table

name Data type Value ranges description

Job tittle Text(PK) Mandatory

No. of emp integer Mandatory

Qualif req. text Mandatory

status text Mandatory

salary double 0-99999.99 Mandatory

Qualification table


Qualification Text(PK) Mandatory

No. of students integer optional

skills text optional

Employment table


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Job tittle Text(PK) Mandatory

Qualify reg text Mandatory

No. of emps integer Mandatory

No. of vacant posts integer Mandatory

No. of unemp integer Mandatory

Application table


name text Mandatory

Omang No. Integer(PK) Mandatory

age integer 18-65 Mandatory

qualification Text(FK reference

qualification table)

Mandatory

experience text optional

Employees table


Company name Text(PK) Mandatory

name Text(FK reference

application.name

Mandatory

Job title Text(FK reference

vacant post.job title)

Mandatory

Normalized tables

First normal table


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Company name

No.of emp

Name of employees

Job title

Qualification

No.of students

Skills

No.of emps

No.of vacant posts

No.of unemp

Name of applicant

Omang No.

Experience

Age

Salary

Status

Second normalized table1: this table processes data for each company: one company has

many employees, one company many job title

company

Company name

Name of employees

Job tittle

Second normalized table2: this table processes data for all employees

employee

Name of employees


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Age

Qualification

Second normalized table3: this processes data for all posts in each company

post

Post title

Qualification

Company name

Salary

Second normalized table4: this process data for all employees

Company name

Name of employee

Omang No.

Status

Second normalized table5: this process the qualification accured

Name of applicant

Qualification

Post tittle

Third normalised table1: this process data for employees and salary

Name of employee

Omang No.


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Salary

Third normalised table2: this process qualification and post

Post tittle

Qualification

Third normalised table3: this process post tittle and status

Company name

Post tittle

Status

Third normalised table4: this process employee and status

Name of employee

Status

Third normalised table5: this process post and vacant post

Post tittle

No.of vacant post

Third normalised table6: this process post and employeed post

Post tittle

No.of emps

Third normalised table7: this process post and unemployeed post

Post tittle

No. of unemps

Third normalised table8: this process the students and qualifications

Qualification

No.of students

Reports

Number of posts in each company

Number of employed personnel by qualification


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Number of unemployed candidates by qualification

Number of qualified candidates per post

Number of employees in contract per company

Number of employees in permanent per company

Number of graduates in different levels by qualification

Number of applicants per post

Interface screen layouts


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Home page is used to enable the users to view the company information and access other

pages

Tables screen layouts

Tables are created using MySQL database

The vacant post table


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Qualification table

Employment table


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Application table

Employees table


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employment database management system2

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