knowledge manag portal

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1. Abstract

A Knowledge Management Portal integrates information, collaboration, process, and

expertise. Knowledge Management (KM) comprises a range of practices used by

organizations to identify, create, represent, and distribute knowledge for reuse, awareness

and learning. Knowledge Management programs are typically tied to organizational

objectives and are intended to achieve specific outcomes, such as shared intelligence,

improved performance, competitive advantage, or higher levels of innovation. The

conscious strategy of getting the right knowledge to the right people at the right time and

helping people share and put information into action in ways that strive to improve

organizational performance. Knowledge Management project deals with the creation of a

portal, which consists of say proposals, reusable components and general presentation

documents, newsletters, training program of vendors etc. The project helps to avoid effort

duplication and trains the employees with minimal cost. It helps in storing several

documents of a company under a single storage. It provides the facility for upload and

download of files such as technical, commercial and cost documents. It provides the facility

to post comments because of which communication between all the Employees is made

possible.

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2. Introduction

2.1 Brief Overview About the Knowledge Management Portal

Knowledge Management project deals with the creation of a portal, using which all the

employees of a company can find relevant and important information under a single

storage. The only irreplaceable capital an organization possesses is the knowledge and

ability of its people. The productivity of that capital depends on how effectively people

share their competence with those who can use and this portal helps in achieving it. The

application will be utilized by company management for collecting, updating and

analyzing, selecting, preparing, editing the knowledge and will be utilized by the company

management to provide sophisticated training.The various user classes anticipated to useKnowledge Management portal are trainees and the trainers. Trainees use this more

frequently in order to get updated with training sessions. Trainers are comparatively less

frequent users than trainees, they use it when they require delivering content or to clarify

the doubts presented by the trainees or to upload any information. The respective privileges

are given to the trainees and trainers according to their functions.

1.

2.2Advantages

It is a free of cost service provided to all the employees of the company to update

their knowledge and share their experiences.

The system is password protected and the overall system maintenance is quite easy.

The system avoids effort duplication and makes the training program less tedious.

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3.2.1 Major Functions of the Proposed System

Authentication and Authorization.

Registration of new employee.

Uploading/Downloading content

Knowledge Sharing.

Online Examination.

Creation of the Lesson.

View the Lesson. View interview tips.

Rate the lesson.

View Latest News.

Edit the latest news.

3.2.2 Constraints on the Existing System

The portal will not be responsible for misuse of the content by the Employees of the

company.

Only Authorized persons who are registered with the site should only be permitted

to use this Site so as misrepresentation of secure data is not done.

Safety and security considerations: Some of the characteristics of the safety critical

operation are the performing of

I. Database integrity checking with each read and write operation into a database.

II. R

ange checking.

III. C

ontinuous checking of the hardware and problem logging.

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IV. E

liminate data redundancy.

V. D

atabase information validation.

VI. H

ardware validation.

3.3 Module Description

The Knowledge management portal consists of three modules.

3.3.1 Authentication Module

Authentication is the process of determining whether someone or something is, in fact, who

or what it is declared to be. In private and public computer networks (including the

Internet), authentication is commonly done through the use of logon passwords.

Knowledge of the password is assumed to guarantee that the user is authorized. As the

portal contains sensitive information about the company that should not be viewed by users

other than the company employees care should be taken that only the authorized employees

of the company get registered with the site. This is achieved by asking the employee to

enter a secret code given by the organization before getting registered. Only if the entered

code is proven to be correct, he can go ahead with the registration process else his

registration request is denied. Even after the entered code is correct and the user enters all

the registration details, access is provided only after verifying and validating information

provided in the registration form by the administrator.

3.3.1.1 Functionalities:

Following functionalities need to be made available before the Authentication takes place:

Incorrect Password:

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This may be a scenario when a registered User may forget the password and may

not be in a position to login, in which cases the user can make another attempt.

Registration of New User:

This may be required in a scenario when an employee is newly appointed.

Password Prompts:

User will be prompted with a success message or rejected message accordingly.

This may be required for security reasons to ensure protection of the account.

3.3.2 Information and Knowledge Sharing Module

List of all projects/products that the organization has handled can be viewed and their

technical, commercial and other documents can be viewed which makes the employees get

trained on them. They can Upload / Download Files. With this reusability of code can be

done. The employees can post a Query/Share his experience/reply to someones queries.With this knowledge sharing as well as communication between the employees and others

will be achieved.


Upload files:

An authenticated person (Trainer) is given the access to upload the content, which

gets stored in the Knowledge Bank. Knowledge bank is a huge database where all the

information related to company is stored.

Download files:

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An authenticated person (trainer) can view the content present in the knowledge bank

by downloading the lessons he is authorized to.

Knowledge Sharing:

All the employees can share any kind of information or their opinions and increase

their technical skills.

Online Examination:

This feature is exclusively meant for the trainees. After going through the lessons in

the portal, he may wish to test his level of understanding. This can be achieved by

taking an online exam.

Create Lesson:

An authenticated experienced person (trainer) can prepare the necessary lessons by

selecting the information present in the knowledge bank.

View Lesson:

All the employees can view the lessons created by their colleagues.

3.3.3 Knowledge Analytics Module

Rating of knowledge is implemented in this module. These analytic reports enable the

administrator to provide remuneration/rewards to the author. Here one can also know the

latest news in the organization through News Latest option and post their opinions.


Rating:

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In this section, all the trainees are given the privilege to rate the lesson created by

their respective trainer. Depending upon these reports, the Source/Author of the

content is provided remuneration/rewards.

Latest News:

This feature enables the employees of the company to be updated with the latest

happenings in and around the world including their company. This helps the

employee to enhance their general knowledge as well.

Update News:

Only Administrator will have the right to delete the unnecessary news and add the

New ones.

Annotation:

All the employees are given the freedom to post their opinions and share their

experiences.

Interview Tips:

The portal has an additional feature where in all its users can have a glance at the latest

questions being posed at the interviews and thereby prepare oneself for the future.

3.4 Assumptions and Dependencies

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It is assumed that all the systems will have the basic HW, SW and Communication

Interfaces available for the deployment of the application. The users are trained in using the

application.

4. Feasibility Analysis

The feasibility analysis is designed to determine whether or not, given the project

environment, a project will be successful (in virtually any interpretation of that word).

In other words, feasibility analysis is the measure of how beneficial or practical the

development of information system will be to an organization. A feasibility analysis

should examine three main areas:

Ease of operation.

Financial overview.

Technical requirements.

4.1 Operational Feasibility

It refers to the feasibility of the product to be operational. In this the operation scope of the

system is checked. The operational scope means, how well the system can perform the

operations that are assigned to it, how can the users use the system in an efficient manner

and how easily can the system be used by different users .It is observed that the proposedsystem is very user friendly and has all the features mentioned above.

4.2 Financial Overview

It deals with establishing the cost-effectiveness of the proposed system i.e. if the benefits

do not outweigh the costs then it is not worth going ahead. The proposed system does not

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require any special software technologies to be developed whose cost is huge. The

technologies and the hardware used in the development are the most popular ones, which

can be acquired by anyone, and moreover they promise portability, security, reliability and

easy maintainability.

4.3 Technical Requirements

The technologies and the standard used for the development of the project are as follows:

4.3.1 Dot Net Technology

It is a Microsoft operating system platform that incorporates applications, a suite of tools

and services and a change in the infrastructure of the company's Web strategy.

There are four main principles of .NET from the perspective of the user:

(a) It erases the boundaries between applications and the Internet. Instead of

interacting with an application or a single Web site, .NET will connect the

user to an array of computers and services that will exchange and combine

objects and data.

(b) Software will be rented as a hosted service over the Internet instead of

purchased on a store shelf. Essentially, the Internet will be housing all where

applications and data.

(c) Users will have access to their information on the Internet from any device,

anytime, anywhere.

(d) There will be new ways to interact with application data, such as speech and

handwriting recognition.

4.3.1.1 Features Of Dot Net

Consistency

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Using Master Page, Themes and using Cascaded Style Sheet feature of ADO.NET, one can

achieve this feature.

Personalization

This is done in regards with the Users taste. It may be in terms of colors, font size,

background colors, and look and feel with respect t the application. After gathering

requirements from the user by making use of and using Themes, Skin and Cascaded Style

Sheet feature of ADO.NET we can achieve personalization.

Themes and skins

These are new feature of ASP. Net. By this way you can customize your sites look and feel.

Like the master pages they also improve the maintainability of your site and avoid

unnecessary duplication of code for shared style.

A theme is a collection of property settings that allow you to define the look of pages and

controls, and then apply the look consistently across pages in a Web application, across an

entire Web application, or across all Web applications on a server.

A skin file has the file name extension. Skin and contains property settings for individual

controls such as Button, Label, Textbox, or Calendar controls. Control skin settings are likethe control markup itself, but contain only the properties you want to set as part of the

theme.

Tools for Navigation

Every site requires tools for navigation. The List of Navigation tools available in .NET

is as follows:

Menu Pull down / Drop down menu

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Fig 4.1 Menu control for navigation

Tree View These are structured links. User can know where they are currently located.

Fig 4.2 Tree View control for navigation

BreadcrumbsRenders tabs indicating parent and current web page.

Fig 4.3 Breadcrumbs control for navigation

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The new Site Navigation features in ASP.NET 2.0 can make building navigation structures

across a web-site much easier.

At a high-level, the new Site Navigation features allow you to define (outside of code or

pages) the site map structure of how your site is laid out. Specifically, it allows you to

define the relationships between pages on the site what is the home entry-point, what

are the sub-sections of it, and how individual pages fit within it. This information is cached

by ASP.NET, and you can then get access to this sitemap structure at runtime.

ASP.NET includes a basic built-in XML based SiteMap provider that allows you to define

this site structure within an XML file whose default name is web.sitemap (note: you can

change the name if you want). For example, web.sitemap XML file can contain several

levels of hierarchy (a homepage root, then three sub-nodes, and under the products node

three additional sub-nodes).

Security

In .NET security considerations can be verified by carrying out authentication of entries,

password checking, password reminders and facility to create new users. It helps in

permitting authorized users and denies access to unauthorized users.

Wizard

. NET provides a wizard called as Web Site Administrative Tools which facilitates in the

Database Providers

Security Management Provides security consideration like password and

username checking

Roles Management Which pages and folders a user is permitted to view.

With built in Windows authentication, you can be assured that your applications are secure.

Database controls

These controls are used to connect with the database and then retrieve, display or edit the

contents of the database. They can be categorized as:

Data Source Control

These offer the behavior of connecting to sources of data.

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Examples of Data source Controls are SQL Data Source, Site Map Data Source, XML Data

Source, Object Data Source.

Data-bound Controls

These perform the task of taking information provided by Data Source Controls and render

it into HTML. Examples of Data Bound controls are Grid View, Data List, Details View,

Form View and Repeater.

Componentization

Code for the various parts of the page can be handled independently.

Code for the presentation layer can be kept in a separate file i.e. default.aspx file.

Code for the execution is kept in a separate file i.e. default.aspx.cs file.

Web Services

Web Services are methods of making information available in a standardized way that

could be accessed by any developers application over the web. A web service on its own

Is not an application

Cant be seen as web pages.

Cant be seen as an .exe files.

They come as part of user interface.

Helps in preventing code duplication & thus save time.

They can be created & exposed to web for other applications to share it or one can

search for web service to add to his own application.

Web services conform to the Simple Object Access Protocol SOAP and Extensible

Markup Language XML

Deployment

In the past series of steps were required to be carried out to register and configure

the site on the host machine.

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ASP .NET 2.0 has devised DOS XCOPY type of folder copying mechanism.

This XCOPY deploys your site from the development machine to the deployment

host.

All registration and machine level customizations occur automatically when the

first request hits the site.

XCOPY/ FTP will suffice for simple applications for more sophisticated

requirements it may well be preferable to create a Windows Installer based setup

package.

There are many common installation tasks that are not possible via XCOPY, some

of which are

Creating IIS web sites or virtual directories

However, if you do need any of these you have Microsoft Windows Installer at your

disposal

4.3.1.2 Summary of ASP .NET

ASP.NET is a programming framework built on the common language runtime that can

be used on a server to build powerful Web applications. ASP.NET offers several important

advantages over previous Web development models:

Enhanced Performance:

ASP.NET is compiled common language runtime code running on the server.

Unlike its interpreted predecessors, ASP.NET can take advantage of early binding,

just-in-time compilation, native optimization, and caching services right out of the

box. This amounts to dramatically better performance before you ever write a line

of code.

World-Class Tool Support:

A rich toolbox and designer in the Visual Studio integrated development

environment complement the ASP.NET framework. Drag-and-drop server controls,

and automatic deployment are just a few of the features this powerful tool provides.

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Power and Flexibility:

Because ASP.NET is based on the common language runtime, the power and

flexibility of that entire platform is available to Web application developers. The

.NET Framework class library, Messaging, and Data Access solutions are all

seamlessly accessible from the Web. ASP.NET is also language-independent, so you

can choose the language that best applies to your application or partition your

application across many languages.

Simplicity:

ASP.NET makes it easy to perform common tasks, from simple form submission

and client authentication to deployment and site configuration. For example, the

ASP.NET page framework allows you to build user interfaces that cleanly separate

application logic from presentation code and to handle events in a simple, Visual

Basic - like forms processing model. Additionally, the common language runtime

simplifies development, with managed code services such as automatic reference

counting and garbage collection.

Security:

With built in Windows authentication and per-application configuration, you can be

assured that your applications are secure.

Language Independency:

ASP.NET is language-independent, so you can choose the language that best applies

to your application or partition your application across many languages.

ASP .NET 2.0 supports more than 20 different languages.

Irrespective of language the code is converted to Intermediate Language prior to

execution.

4.3.2 SQL Server

SQL Server has many advanced features like:

Database mirroring

Database mirroring is a new high-availability feature in SQL Server 2005. It's similar to

server clustering in that fail over is achieved by the use of a stand-by server; the difference

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SQL Server 2005 provides the ability to rank result sets returned from the database engine.

This allows customizing the manner in which result sets are returned, such as creating

customized paging functions for Web site data.

XML integration

SQL Server 2005 introduces the new XML data-type. Using this feature, full XML

documents in this new data-type, and validations can be placed on the well-formed

documents in the database. Additional enhancements include the ability to query the XML

documents and create indexes on the XML data-type.

TRY...CATCH

Use of new TRY...CATCH constructs in SQL Server 2005 helps to catch and handle

deadlocks when they occur in the database. This long-awaited feature simplifies error

handling in the database.

Database Mail

Database Mail, the eventual successor to SQL Mail, is a greatly enhanced e-mail solution

available in the database engine. With Database Mail, there is no longer a dependency on

Microsoft Outlook or MAPI e-mail clients. Database Mail uses standard SMTP to send e-

mail messages. These messages may contain query results, attachments (which can be

governed by the DBA), and is fully cluster aware. In addition, the e-mail process runs

outside of the database engine space, which means that messages can continue to be queued

even when the database engine has stopped.

Fast Recoveries

A new faster recovery option improves availability of SQL Server databases.

Administrators can reconnect to a recovering database after the transaction log has been

rolled forward.

Standards-based Information Access

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Any object, data source, or business intelligence component can be exposed using

standards-based protocols such as Simple Object Access Protocol (SOAP) and Hypertext

Transfer Protocol (HTTP)eliminating the need for a middle-tier listener, such as IIS, to

access a Web services interface that is exposed by SQL Server 2005.

Security Enhancements

The security model in SQL Server 2005 separate users from objects, provides fine-grain

access, and enables greater control of data access. Additionally, all system tables are

implemented as views, providing more control over database system objects.

Web Services

With SQL Server 2005 developers can develop Web services in the database tier, making

SQL Server a hypertext transfer protocol (HTTP) listener and providing a new type of data

access capability for Web services-centric applications.

T-SQL

T-SQL (Transact-SQL) is the primary means of programming and managing SQL Server. It

exposes keywords for the operations that can be performed on SQL Server, including

creating and altering database schemas, entering and editing data in the database as well as

monitoring and managing the server itself. Client applications, both which consume data or

manage the server, leverage SQL Server functionality by sending T-SQL queries and

statements which are then processed by the server and results (or errors) returned to the

client application. SQL Server allows it to be managed using T-SQL. For this it exposes

read only tables from which server statistics can be read. Management functionality is

exposed via system-defined stored procedures, which can be invoked from T-SQL queries

to perform the management operation.

Replication Monitor

With its intuitive user interface and wealth of data metrics, Replication Monitor is a tool

that sets a new standard for ease of use in managing complex data replication operations.

Cross-Tier and Cross-Language Debugging

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SQL Server 2005 and Visual Studio 2005 together provide even deeper integration in the

area of application debugging. The combination lets you seamlessly debug both CLR and

Transact-SQL code using the same Visual Studio debugging interface, and enables you to

debug from CLR to Transact-SQL and back again, regardless of the location of the code,

whether it is on the developer computer or stored in the SQL Server database

4.3.3 Standards used

SCORM stands for "Shareable Content Object Reference Model", is a standard for

developing, packaging and delivering high-quality training materials for online training

Courses. We are following SCORM standards in our project. SCORM was developed

based on the concept of "using a common e-learning Standard to modernize education and

training courses". Now, with the SCORM standard, and more specifically SCORM

compliant tools/platforms, you can find, import, share, reuse and export learning contents

through compliant web-based learning systems.

The benefits of using SCORM standards are as follows:

Reusability

Lowers cost because learning contents can be used many times. SCORM incorporated

contents can be easily incorporated into multiple applications, allowing for learning

contents to be easily modified and used by different tools and platforms. This allows you to

spend less effort in creating new contents from scratch and focus more on incorporating

existing contents to meet the specific needs of the learner and corporation.

Accessibility

Increased access to learning information. The SCORM standard offers you the ability to

access learning contents from anywhere and at anytime. It enables you to customize the

delivery of your learning contents from one remote location and deliver them too many

other locations. It allows you to search, identify, access and retrieve contents that are

widely distributed in SCORM compliant repositories. This way, it is easier for learners to

identify, retrieve, and incorporate valuable content from many trusted sources.

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Interoperability

Systems work efficiently together. SCORM provides an extension for compliant

courseware and similar tools/platforms to communicate under a common interface. With

consistent content production specifications, learning contents developed using one set of

tools/platform can be easily identified, and launched with a different set of tools/platform.

In other words, SCORM compliant learning contents can be authored and/or launched by

any SCORM compliant authoring tools and/or platforms, providing maximum flexibility.

Durability

Learning contents will not easily become obsolete. SCORM is becoming the technological

standard for the e-Learning industry because SCORM compliant contents are preserved and

portable even when base technology (tools/platform) changes. This means learning

contents do not need to go through a Redesign or redevelopment process, even when

technology changes (platforms, tools, Access, devices, products, vendors).

Manageability

A track of system usage and learning experience can be maintained. SCORM can keep

track of the learners' learning experiences and activities, and more Specifically how

learning objects are created, stored, assembled, and delivered to individuals. Also it

provides tracking based on an individuals learning assessment, which gives a better

evaluation reference for determining the learning results. Thus, corporations purchasing

SCORM compliant software (such as TCMS 2.0 or Stream Author 2.5) can better assess

their e-Learning environment and provide a more detailed measurement for their ROI.

4.4 Hardware and Software Requirements

4.4.1 Hardware Requirements

Pentium 4 processor

Minimum 256 MB memory

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10 GB Hard disk

Modem / Network card

4.4.2 Software Requirements

Microsoft Windows XP Professional, Version 2002 or above

C# with ASP.NET 2.0

SQL server 2000 / 2005

5. System Design

5.1 Introduction

Systems design is the process or art of defining the architecture, components, modules,

interfaces, and data for a system to satisfy specified requirements. Once the software

requirements are analyzed and specified, the software design involves three technical

activities-- design, code generation and testing that are required to build and verify the

software. The design activities are of main importance in this phase because in this activity

decisions ultimately affecting the success of the software implementation and its ease of

maintenance are made. These decisions have the final bearing upon the reliability and

maintainability of the system. Design is the only way to accurately transfer the customer

requirements into a finished software or system.

5.2 UML Diagrams

UML, the Unified Modeling Language, is a visual language for specifying, constructing,

and documenting the artifacts of systems. UML can be used with all processes, throughout

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the development lifecycle, and across different implementation technologies. UML

diagrams represent three different views of a system model:

Functional requirements view:

It emphasizes the functional requirements of the system from the user's point of view. This

includes use case diagrams.

Static structural view:

It emphasizes the static structure of the system using objects, attributes, operations, and

relationships. This includes class diagrams.

Dynamic behavior view:

It emphasizes the dynamic behavior of the system by showing collaborations among

objects and changes to the internal states of objects. This Includes sequence diagrams,

activity diagrams.

5.2.1 Use Case Diagrams

Use case diagrams overview the usage requirements for a system. They describe "the

meat" of the actual requirements.

5.2.1.1 Elements of a Use Case Diagram and their Notation

Use cases

A use case describes a sequence of actions that provide something of measurable value to

an actor and is drawn as a horizontal ellipse.

Fig 5.1 Sample use case

Actors

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An actor is a person, organization, or external system that plays a role in one or more

interactions with your system. Actors are drawn as stick figures.

Fig 5.2 Actor

Relationships

A relationship between two use cases is basically a dependency between the two use cases.

Use case relationships can be one of the following:

Include:

When a use case is depicted as using the functionality of another use case in a diagram,

this relationship between the use cases is named as an include relationship.

Fig 5.3 Include relationship between use cases

Extend:

In an extend relationship between two use cases, the child use case adds to the existing

functionality and characteristics of the parent use case.

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Fig 5.4 Extend relationship between use cases

Generalization:

A generalization relationship is also a parent-child relationship between use cases. The

child use case in the generalization relationship has the underlying business processmeaning, but is an enhancement of the parent use case.

UseCase1 UseCase2

Fig 5.5 Generalization relationship between use cases

Usecase1:

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Trainee

Trainer

User

Authentication

Information andKnowledge Sharing

Database

Analytics

5.6 Use case diagram of the Knowledge Management Portal

Usecase2:

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Trainer

Trainee

Login

UserRegistration

Database

Access to Services

5.7 Use case diagram of Module 1

Usecase3:

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Trainee

Trainer

Company History

Latest News

Interview Tips

Knowledge Updation/Downloading

Database

Knowledge Creation


Usecase4:

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Online Exam

Rating Knowledge

Database

Trainee

Knowledge SearchTrainer

Annotations


5.2.2 Class Diagram

The purpose of the class diagram is to show the types being modeled within the system. A

class diagram is a pictorial representation of the detailed system designs.

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5.2.2.1 Elements of a Class Diagram and their Notation

Class:

A class represents an entity of a given system that provides an encapsulated implementation

of certain functionality of a given entity. The class to others as methods exposes these. The

properties of a class are called attributes. A class is represented by a rectangle. The

following diagram shows a typical class in a class diagram:

Fig 5.10 Representation of a sample class

Relationships

Association:

When two classes are connected to each other in any way, an association relation is

established.

Fig 5.11 Association relationship between classes

Inheritance/Generalization:

Also called an "is a" relationship, because the child class is a type of the parent class.

Generalization is the basic type of relationship used to define reusable elements in the class

diagram.

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Fig 5.12 Generalization relationship between classes

Database

Interview Tips()

Latest News()

Knowledge Bank()

Authentication

EmployeeId

Emp Name

Designation

Salary

PlatForm

Registration()

Services

View Lesson()

Rating()

Annotations()

Searching()

Online Examination()

Authorization

Updating()

Downloading()

Creation()

5.13 Class diagram of the Knowledge Management Portal

5.2.3 Sequence Diagram

A Sequence diagram depicts the sequence of actions that occur in a system. The invocation

of methods in each object, and the order in which the invocation occurs is captured in a

Sequence diagram. This makes the Sequence diagram a very useful tool to easily represent

the dynamic behavior of a system.

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5.2.3.1 Elements of a Sequence Diagram and their Notation

Object:

The primary element involved in a sequence diagram is an Objectan instance of a class.

An object is represented by a named rectangle. The name to the left of the ":" is the object

name and to its right is the class name.

Fig 5.14 Object in a sequence diagram

Message:

The interaction between different objects in a sequence diagram is represented as

messages. A directed arrow denotes a message. Depending on the type of message, the

notation differs. In a Sequence diagram, you can represent simple messages, special

messages to create or destroy objects, and message responses.

Fig 5.15 Messages in a sequence Diagram

Sequence Diagram 1:

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U:User User Portal Database

1: Login/Registration2: search for the req page

3: validate

4: Retrives the page

5: Enter the details

6: Submit()

7: validate

8: succefully logged in

Fig 5.16 Sequence diagram of Module 1

Sequence Diagram 2:

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Sequence Diagram 3:

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User User Portal Service Engine DataBase

1: If User

2: Display Service

3: Select Service4: Request Page

7: Retrive the service

8: Searching Service9: Request Page

10: Search

6: Validate

11: Validate

12: Retrive the Service

13: Annotations service

14: Request Page 15: Search16: Validate

17: Retrive Service

18: If Trainee

19: Online Examination

20: Request Page 21: Search

22: Validate

23: Retrive Page

24: Rating25: Request Page

26: Search27: Validate

28: Retrive Page

5: Search


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Decision

A diamond with one flow entering and several leaving denotes it. The flows leaving

include conditions although some modelers will not indicate the conditions if it is obvious.

Fig 5.22 Decision

Activity Diagram 1:

U:User

Login/Registration

Check Valid User or not

Access System

Valid User

Invalid user

DataBaseValidateUser

Fig 5.23Activity diagram of Module 1

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Activity Diagram 2:

Fig 5.24 Activity diagram of Module 2

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Activity Diagram 3:

Fig 5.25 Activity diagram of Module 3

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5.3 Architecture Diagram

The architecture of a software system defines its structure. In fact, it defines several

structures, each of which comprises elements and the relationships among those elements.

The elements may be computational entities related by control flow or business entities

connected by semantic constraints. It is a multi-perspective, quality-based approach to

ensuring that software is built to fit its purpose.

The architecture below explains the complete flow of the project:

Fig 5.26 Architecture diagram of Knowledge Management Portal

5.4 Database Tables Used for The Design

Database tables are used to organize and group the data by common characteristics

or principles. The database can contain as many tables as needed to organize the

data. Database tables involved in this project for storing and retrieving the

data/information are as following:

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5.4.1 Employee Table

This table is used to store the details of the employees registered with the portal.

5.4.2 KBank Table

This table is used to store all the files pertaining to all the departments. All the files have aunique content Id to identify them.

5.4.3 Lesson Table

This table contains the details of the lessons created by the trainers.

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5.4.4 Ratings Table

This table stores the details of the ratings given by the employees.

5.4.5 DNQuestionBank Table

This table consists of the questions to be presented in the online exam for the traineebelonging to Dot net department.

5.4.6 JQuestionBank Table

This table consists of the questions to be presented in the online exam for the traineebelonging to Java department.

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5.4.7 OraQuestionBank Table

This table consists of the questions to be presented in the online exam for the traineebelonging to oracle department.

5.4.7 News Table

This table stores the headlines as well as the detailed news to be presented in the news

section.

5.4.8 Comments Table

This table is used to store the details of the comments posted by the employees in theannotations section.

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6. Testing

In general, testing is finding out how well something works. In computer hardware and

software development, testing is used at key checkpoints in the overall process to

determine whether objectives are being met. For example, in software development,

product user representatives test product objectives. When the design is complete, coding

follows and each programmer tests the finished code at the unit or module level, at the

component level by the group of programmers involved; and at the system level when all

components are combined together. At early or late stages, a product or service may also be

tested for usability. Software testing is a critical element of software quality assurance and

represents the ultimate review of specification design and code generation.

6.1 Testing Objectives

Testing is a process of executing a program with the intent of finding an error.

A good test case is one that has a high probability of finding an as yet undiscovered

error.

A successful test is one that uncovers an as yet undiscovered error.

6.2 White -Box and Black-Box Testing

Software testing methods are traditionally divided intoblack box testing and white box

testing. These two approaches are used to describe the point of view that a test engineer

takes when designing test cases.

6.2.1 White Box Testing

White box testing is a security testing method that can be used to validate whether code

implementation follows intended design, to validate implemented security functionality,

and to uncover exploitable vulnerabilities. White box testing is performed based on the

knowledge of how the system is implemented. White box testing includes analyzing data

flow, control flow, information flow, coding practices, and exception and error handling

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within the system, to test the intended and unintended software behavior. White box testing

requires access to the source code.

Using white-box testing we can derive test cases that

Guarantee that all independent paths within a module have been exercised at least

once.

Exercise all logical decisions on their true and false sides.

Execute internal data structures to assure their validity.

By the test cases each of the modules have been executed at least once and tested for bugs.

All the logic decisions on their true and false sides are executed so that the system will

perform well.

6.2.2 Black Box Testing

Black box testing is based on the softwares specifications or requirements, without

reference to its internal workings. Black box testing attempts to derive sets of inputs that

will fully exercise all the functional requirements of a system. This type of testing attempts

to find errors in the following categories:

Incorrect or missing functions.

Interface errors.

Errors in data structures or external database access.

Performance errors

Initialization and termination errors.

All the modules have been thoroughly tested in order to find if all the functions,

interfaces designed for the user, all the data structures used are working as per the

intended requirement.

6.3 Unit Testing

Unit testing is a procedure used to validate that individual units ofsource code are working

properly. This would test the interaction of many functions but confine the test within one

unit. Unit testing involves only those characteristics that are vital to the performance of the

unit under test. This encourages developers to modify the source code without immediate

concerns about how such changes might affect the functioning of other units or the program

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as a whole. Unit testing must be done with an awareness that it may not be possible to test a

unit for every input scenario that will occur when the program is run in a real-world

environment.

Keeping in mind the above rules, each and every module of our project was tested

individually and seen that all the modules are working in an error-free manner.

6.4 Integration Testing

Integration testing is a logical extension of unit testing. In its simplest form, two units that

have already been tested are combined into a component and the interface between them is

tested. A component, in this sense, refers to an integrated aggregate of more than one unit.

Integration testing can expose problems with the interfaces among program components

before trouble occurs in real-world program execution. Simulated usage of shared data

areas and inter-process communication is tested and individual subsystems are exercised

through their input interfaces.

After testing the individual modules, we have combined all the modules and tested if all the

modules as a whole are working properly or not.

6.5 System Testing

System testing of software or hardware is testing conducted on a complete, integrated

system to evaluate the system's compliance with its specified requirements. System testing

falls within the scope ofblack box testing, and as such, should require no knowledge of the

inner design of the code or logic. As a rule, system testing takes, as its input, all of the

"integrated" software components that have successfully passed integration testing and also

the software system itself integrated with any applicable hardware system(s). The purpose

of integration testing is to detect any inconsistencies between the software units that are

integrated together (called assemblages) or between any of the assemblages and the

hardware. System testing is a more limiting type of testing; it seeks to detect defects both

within the "inter-assemblages" and also within the system as a whole.

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7. Implementation

All the front-end pages are created using ASP. Net. The users can access most of the

services offered by the portal only when they log in. So, both the trainers and the trainees

must become members of the portal. As the portal contains sensitive information about the

company that should not be viewed by users other than the company employees, care

should be taken that only the authorized employees of the company get registered with the

site. This is achieved by asking the employee to enter a secret code given by the

organization before getting registered. Only if the entered code is proven to be correct, he

can go ahead with the registration process else his registration request is denied. This is to

ensure that additional security is provided. Once filling in the registration details is

completed, the details are stored in the database after proper verification by the

administrator. Here the freedom of choosing the user id is given to the employee himself. A

check is made in order to see if the user id already exists. If so, the employee is asked to

enter another one else he get registered with the given id. Here, constraint checking is made

on certain fields to ensure that the data he is entering is valid and meaningful. The data

entered by the employee is stored in the database using SQL server after proper

verification.

After successful login, the user will be directed to the home page. At the time of login his

category i.e. whether he is a trainer or trainee or admin is stored and this category acts as a

criteria in enabling different services to different classes of users. All the services offered

by the portal are present in the form of buttons, which are enabled, or disabled depending

upon the category of the user signed in. Clicking on the buttons will direct the user to the

appropriate pages.

If the user is a trainer, he will be given the privilege to create lessons from the files presentin the knowledge bank. For this activity to be performed, the documents he wishes to be

present in the lesson must be first updated in the knowledge bank. The provision of

updating and viewing the contents present in the knowledge bank is given only to the

administrator and the trainer. The trainer of a particular department is allowed to create

lessons pertaining to that department only. This particular feature is implemented by

displaying only the contents pertaining to his department only while creating the lessons.

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7.1 Input/Output (Sample Screens)

This section is to provide the sample screens of the knowledge management portal. These

screen shots provide an insight into the general working of the system.

LOGIN SCREEN:

Fig 7.1 the login page where the user needs to enter his user id and password

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SECURITY CODE SCREEN FOR ACCOUNT CREATION:

Fig 7.2 Asking the user to enter the secret code before getting registered.

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ERROR MESSAGE DISPLAYED FOR INVALID CODE:

Fig 7.3 The page displaying error if the entered code is not valid.

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REGISTRATION PAGE:

Fig 7.4 Employee Registration page.

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VALIDATIONS IN REGISTRATION PAGE:

Fig 7.5 Validation checks made in the registration form .

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FILLING THE REGISTRATION DETAILS:

Fig 7.6 Filling the registration form.

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SUCCESS MESSAGE AFTER ACCOUNT CREATION:

Fig 7.7 Success message displayed after the user account is created.

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LOGIN PAGE:

Fig 7.8 The login page

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HOME PAGE:

Fig 7.10 The home page displaying the services that can be accessed by the trainer.

The services, which cannot be accessed, are displayed in the form of disabled buttons.

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KNOWLEDGE BANK PAGE:

Fig 7.11 The Knowledge Bank page, which displays the contents present in it.

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KNOWLEDGE BANK UPDATION PAGE:

Fig 7.12 Update page, using which the trainer can upload the files in the knowledge

bank.

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KNOWLEDGE BANK UPDATION PAGEFILLING DETAILS:

Fig 7.13 Once the upload button is clicked the file gets uploaded into the knowledge bank.

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HOME PAGE OF ADMINISTRATOR:

Fig 7.14 Services accessed by the administrator presented in the form of enabled

buttons.

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LESSON CREATION PAGE:

Fig 7.16 The lesson creation page where the trainer needs to select the subtopics to be

present in the lesson being created.

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FAQ PAGE:

Fig 7.17 The frequently asked questions page.

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RATING PAGE:

Fig 7.18 The Knowledge Rating Page, which displays the ratings given to various topics.

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ANNOTATIONS PAGE:

Fig 7.19 The annotations page displaying different comments.

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POSTING COMMENT:

Fig 7.20 If the employee wants to post a comment he needs to click on the Post Your Opinion.

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POSTING COMMENT:

Fig 7.21 once the opinion is posted, the post button is disabled. The user needs to login again

to get that button enabled.

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HOME PAGE OF TRAINEE:

Fig 7.22 The services available for a trainee.

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VIEW LESSON PAGE:

Fig 7.23 The View lesson page where all the lessons are displayed chapter wise.

VIEW LESSON PAGE:

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Fig 7.24 The sub topics of a particular chapter in the form of links are displayed whenever the

chapter number is selected from the pull down menu.

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VIEW LESSON PAGE:

Fig 7.25 Once the link is clicked, the trainee can download the file.

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RATING THE LESSON:

Fig 7.26 The trainee can click on the Rate the Topic link to give rating to that particular

lesson.

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NEWS PAGE:

Fig 7.27 The News page displaying the latest news in a scrolling format.

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NEWS PAGE:

Fig 7.28 Once the scrolling news is clicked, news is displayed in detail.

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ONLINE EXAM PAGE:

Fig 7.29 The Online exam page displayed to the trainee.

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RESULT PAGE:

Fig 7.30 The result displayed after the online exam.

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HOME PAGE OF ADMIN:

Fig 7.31 The services page displayed to the administrator. The update news link is enabled

only for the administrator.

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NEWS UPDATE PAGE:

Fig 7.32 The administrator can delete unnecessary ones by clicking the Update News link.

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NEWS UPDATE PAGE:

Fig 7.33 The administrator can add new ones by clicking on the Update News button.

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SUCCESS MESSAGE AFTER INSERTION:

Fig 7.34 Once the news is updated successfully, a success message appears on the screen.

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8. Conclusions and Scope for Future enhancements

8.1 Conclusions

The Knowledge Management Portal, which can be easily accessed over the web by the

authorized employees, is a free of cost service provided by the company. Using this service,

the employees of the company can have the benefit of knowing the latest happenings, share

their experiences by posting comments and update their technical knowledge by going

through the lessons made available in the portal. The system is easy and convenient to use

and is made available round the clock. The system also aids in easy retrieval of the required

information. The system being portable helps in easy upgrading and maintenance.

Thus, we have developed the Knowledge Management Portal, which helps its users in

creating, sharing and maintaining valuable information in a user-friendly environment.

8.2 Scope for Future enhancements

The System can be enhanced to increase look and feel of the application. We can give some

more advanced features to the application like making it more automated (less Human

intervention), Secure Remote connectivity etc.

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9.References

9.1 Textbooks

1. William H. Murray and Chris H. Pappas., Visual C++.NET: The Complete

Reference, McGraw-Hill/Osborne, Microsoft.net framework, Published 2002.

2. Matthew MacDonald, Robert Standefer.,ASP.NET: The Complete Reference,

McGraw-Hill/Osborne, Active server pages, Published 2002.

9.2 Websites

1. Wikipedia, URL: http://www.wikipedia.org.

2. Answers.com, Online Dictionary, Encyclopedia and much more, URL:

http://www.answers.com.

3. Google, URL: http://www.google.co.in
http://www.wikipedia.org/http://www.answers.com/http://www.google.co.in/http://www.wikipedia.org/http://www.answers.com/http://www.google.co.in/

Documents

knowledge manag portal