Anonlinefleamarketinhighereducationusingc2ce Commercemodelarequirementsmodel Salaheddin 140507110958 Phpapp01

8/11/2019 Anonlinefleamarketinhighereducationusingc2ce Commercemodelarequirementsmodel Salaheddin 140507110958 P

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AN ONLINE FLEA MARKET IN HIGHER EDUCATION USING

CONSUMER-TO-CONSUMER ELECTRONIC COMMERCEMODEL: A REQUIREMENTS MODEL

Salaheddin Khiri M.Beskri1, Dr. Azida Zainol

2

1Universiti Utara Malaysia, Malaysia,[email protected]

2Universiti Utara Malaysia, Malaysia, [email protected]

ABSTRACT. In higher education district, college students are special con-

sumers. Second hand goods are their main needs while they are in college.

Thereby public e-commerce websites may not fulfill their requirements.

Trustworthiness and security, between e-commerce websites users,are also

other issues that students, as buyers or sellers, are concerned about that pub-lic e-commerce users are still paying off its repercussions. Thus, it is essen-

tial to have an online flea market in higher education that specifically tai-

lored to the students needs and demand. This study proposes a comprehen-

sive requirements model that can be referred as guidelines to developing an

online flea market for a higher education district. The methodology for con-

structing the requirements model involves four main phases, which are theo-

retical study, requirements elicitation, requirements analysis and require-

ment validation. The requirements model consists of several Unified Model-

ing Language (UML) diagrams, content, hypertext and presentation model-ing; as well as list of requirements and use case description. The results

form the requirements validation and it is very promising. Moreover, it

demonstrated a significant efficiency of the requirements model towards a

higher education district. After all, this work contributes to the requirementsengineering domain specifically and to the body of software engineering

generally.

Keywords: Online Flea Market, requirement model, C2C e-commerce

INTRODUCTION

E-commerce has brought the world to a new era of trading, nowadays. Using Internet be-comes easier for most people regardless their ages and incomes whereby social networks andmobile phones are the main causes. The consumer to consumer e-commerce model (C2C)refers to a concept of which exchanging a set of transactions among consumers (Du, 2005). In

this model, sellers sell products directly to consumers as well as negotiations between buyersand sellers about the price of the offered products is applicable to finalize the transaction.

Online marketing has dominated most traditional markets all over the world. Therefore,traders do not need to find the best location to sell goods, and that in return, save the worldpollution, traffic jams, lots of money, effort and finally time (Villapol & Fuenmayor, 2007).In china, 2012, consumer-to-consumer E-commerce markets have dominated marketplaces

with an 80% market share while 20% of the markets go for business-to-consumer E-commerce markets (Hoffmann, Lannes, & Dai, 2012). Therefore, the significance of E-

commerces been increasing over the last decade and becoming more of interest of individu-als, companies and organizations to deliver their products.
mailto:[email protected]:[email protected]:[email protected]:[email protected]


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Apart from that, college students as a part of a higher education district indeed benefitfrom the use of E-commerce technology in many ways. Students travel far away distances

from their hometown seeking knowledge that, as a consequence, leads to adapting themselveswith a new lifestyle in their universities for quite long time. As novices, they will start look-

ing for their personal and learning needs by contacting sellers, for instance, senior studentswho are about to graduate and they have their own goods for sale. Eventually, students end upspending a vast amount of time and money most frequently and they are restricted to the cli-

mate and the location of the market (Zhao, 2010).

Therefore, currently online flea market websites are well known and widely spread amongprivate organizations especially in higher education districts (Zhang & Liu, 2010). Online fleamarkets are classified as unofficial websites in universities whereby students could look fortheir goods or put them for sale on the website. The online flea market websites are usually

manufactured as a standalone websites (e.g., accessible on the Internet or on a Local AreaNetwork (LAN)).

PROBLEM STATEMENT

In many public and private places, posters are tremendously used which that ends up, un-

fortunately, in walls fully filled with posters, either invalid or still valid, and, moreover, con-

ducting physical flea markets is restricted to climate, a location and time (Wang &Tomaszewski, 2010). As a consequence, robbery, traffic jams and left garbage on streets insome cases are the repercussions of conducting the physical flea market (Villapol &Fuenmayor, 2007).

Apart from that, the present revolutions of E-commerce are still of concern of researchersin terms of security issues. Selling and buying goods online require a user to use his/her con-fident information which that will lower the websites reliability among the users. According

to the E-commerce report working group, 2012, reported that lack of consumer-perceivedsecurity and trust in vendors and payment systems is one of the main barriers to electronicand mobile tradeand According to Eurostat data, the main factors inhibiting the buying andselling of goods online are concerns with the security of payments (11%), privacy (10%)

(The European Online Marketplace Consumer complaints 2010-2011, n.d.). Therefore, theproposed system is efficiently supported to enable students to buy and sell their goods secure-ly and easily since there are no very sensitive and personal information regarding to payment

methods are required. Besides, the search for items is faster and more convenient (Zhang &Liu, 2010).

Moreover, college students are unique consumers comparatively to other consumers(Zhao, 2010). Second-hand goods are considered their main needs since they are temporalresidents who will be off a campus once he or she graduates. Besides, Trustworthiness be-tween a seller and a buyer is another achievement of this study since students are the mainactors in this study and that, consequently, will provide more details about a sellers historyand his/her background information which can be gained from his/her college. To maintain

these items its important that seller doesnt use nicknames and show hes available and re-sponsible with the transaction. Said (da Cunha Julio A, Hamilton L, Joao L, & Dennys E,2012).

Finally, developing an online flea market using C2C E-commerce model which is faced

with higher education district focusing on college students based on sufficiently elicited, in-cepted and elaborated requirements is necessary and a key criterion to proceed to subsequentsoftware engineering but, unfortunately it is scarcely done (Roger, 2010). In other words, in-consistency, omissions and ambiguity are still nightmares for most computer-based systemswhereby these systems are built on week foundations in terms of requirements engineering(Roger, 2010). Therefore, this study proposes a comprehensive requirements model that canbe referred as guidelines to developing the online flea market.


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EBay

The EBay site is one of the largest e-commerce sites in the world whereby bidding, listingand purchasing were happening every minute simultaneously by 90 billion active users andthe number is increasing everyday according to Zegian & Sundaresan, (2011). Even thoughthe EBay site is B2C and C2C e-commerce model-based and equipped with auctions andfixed-price features, there are still some issues that are affecting some features in the EBaysystem. A study reported that there is no a dominant bidding strategy when faced with multi-ple auctions each offering an item of interest according to Juda & Parkes, (2006). Which thatwill make the number of auctions declines due to the inaccuracy in picking the right winner.The study provided the truthful, dominant and simple bidding strategy by creating consistingof an options-based and authorized auction protocols.

Amazon

Amazon is another popular e-commerce marketplace in the world. It offers items for salesand buyers can pay by many ways similarly to the EBay whereby buyers can pay fixed pricesor bid in auctions. According to Zaman & Grosu, (2012) , the fixed price-based resource al-location and trading mechanisms currently in use in cloud computing systems do not providean efficient allocation of resources and do not maximize the revenue of the cloud providers.

Based on an economic theory that they supported their study with which is when the auctioncosts are low, auctions are especially efficient over the fixed-price markets since products are

matched to customers having the highest valuation. (Zaman & Grosu, 2012). Bidding oncombinations of discrete items adds more value to each item rather than selling or bidding onitems separately. In other words, if youd like to sell a single chair it will be less valuable bybidders than if it is sold with a table.

Requirements Modeling

Requirements modeling have been of concern of researchers for many years. Varioustechnique tools and methods have been established and enhanced continuously to deliver bet-ter end-to-end information system in terms of features and quality to users. Requirementsmodeling ensures the completeness and consistency of the system and plays an important role

in the System Development Life Cycle (SDLC) according to Pandey, Suman, Ramani, &Ahilyavishwavidyalaya, (2011). An information system becomes more mature after iterativedevelopment processes, methods and tools. Requirements model components are the repre-

sentations of the system activities and aspects and it can help understanding the system in thedevelopment processes phases (e.g. elicitation of the requirements, requirements analysis,design and implementation).

However, since using graphical requirements to describe the systems activities and fea-tures is worth rather than words, many requirement modeling applications have been estab-lished (e.g. UML), Business Process Modeling Notation (BPMN) and System Modeling lan-guage (SysML)). A research study , by (Pandey et al., 2011), has created a framework formodeling software requirements using UML concepts for requirement modeling with more

focus on specific details. The study found that conventional requirement artifacts can bemapped into system elements. Also, critics were found in using UML as a requirement speci-fication language and can be solved using the UML tools and extensions.

Another study , by Nor, (2009), created a requirement model for Employee Training Man-

agement System (ETMS) in one of the private higher learning institution. The researcher hasfound that using UML extensions such as Web Application Extensions (WAE) provides asubstantial, significant contribution to the comprehension activity and these results have beenverified only by developing a prototype of (ETMS).


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RESEARCH METHODOLOGY

Building a requirement model prior to system design phase has been neglected by manydevelopers (Roger, 2010). Having a requirement model ensures a higher probability to revealany omissions, inconsistencies or ambiguity which that will, in return, results in a solid struc-tured end system. Hence, this study is based on a framework as shown in Figure 2.

The framework consists of four major phases, namely: Theoretical study, requirements

elicitation, requirements analysis and requirementsvalidation.

Figure 2. The Research Methodology Framework

Theoretical

study

Literature study, previous

works and exploration.

Non functional and

Functional Re-

quirements areelicited

Phases Technique/Approach Output

Requirement

Elicitation

- Interview

- Background study

- Questionnaire

- Observation

- Document Analysis

Requirement

Analysis

-Requirement Modeling.

-Content Modeling

-Hypertext Modeling

-Presentation Modeling

Requirement

Validation

Experts Review the

Framework using the be-

low criteria:

1.Omissions.

2.Inconsistencies.

3.Ambiguity.validated require-

ments models

Evaluate the usefulness and

ease of use by using a pro-

totyping.

The requirement

models


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Theoretical study

A theoretical study of an interesting problem may come from multiple sources; and themost important thing is to achieve the objectives and to scope this problem. In this phase, Nonfunctional and functional requirements are derived from other related works. The require-ments for developing the E-flea market website will be identified and investigated from litera-ture studies and previous works.

Requirement Elicitation

This phase focuses on collecting and gathering the desired and required requirements andobjectives from multiple perspectives. In this phase, stakeholders who are affected by the sys-tem are determined and identified. The gathered requirements cover all aspects of the aimedsystem (e.g. security issues, business requirements, user requirements and constraints). Theelicited requirements are raw requirements which mean unanalyzed requirements. Interviews,background readings, observation, documents analysis techniques are used in this phase. Theoutput of this phase is the all desired functional and non functional requirements.

Requirement Analysis

There are four modeling activities involve in this phase, which are: functional, content,

hypertext and presentation modeling.Functional modeling

In this phase, functional requirements are the main concern. A list of requirements, usecase diagram and use case specification are constructed. This model aims to obtain an integralmodel which consists of the structure and the behavior of the targeted system. The list of re-quirements, the use case diagram and the specification diagram will describe how the systemwill function and its feature that the end-user will interact with.

Content Modeling

The content modeling level is of concern of the information that is included and shown onthe web either dynamically or statically. It aims to integrate and transfer all the information

and requirements in to a model. Class diagrams and interrelation diagrams are comprised inthe produced model. Therefore, Object-Oriented approach is adopted to model the contents ofthe web application to ensure information redundancy avoidance.

Hypertext Modeling

Since web applications are hypertext-based, modeling the navigation system in the webapplication is an important step in this phase. The aim of this step is to ease the user to navi-gate through the web application without being lost using navigation paths. Hypertext struc-ture modeling is based on nodes (pages or documents) and links between them. Usually, hy-

pertext model is considered as a view model for the contents model. Classes and objects in thecontent model are the basics of the hypertext model.

Presentation Modeling

The presentation modeling deals with the user interface (UI). It determines the appearanceand the feeling of web applications. Graphic designs are involved in this model to simplify

and the use of the web application. In this model, headers and footers on the web applicationare positioned as well as nodes, buttons, texts, images and audios. The output of this phase is

a fully designed requirement model.

Requirement Validation

The requirement validation phase is the last phase in the requirement model life cycle. Inthis phase, two activities are performed to gain a pure and solid requirement model, namely:Firstly, the requirement model is reviewed by two experts in order to ensure the requirements

model is clear, consistent and complete. Several critical questions are addressed by the re-


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viewers to ensure that this is the right system is to be built (e.g. is each requirement consistentwith the overall objectives for the system?) (Roger, 2010).

Secondly, after the reviewers validated the requirements, the online flea market is devel-oped based on the validated requirement model as well as the level of usefulness and opera-bility is evaluated by giving out a questionnaire to a group of students after they experimentthe developed online flea market.

Web applications' designers have faced many challenges during development phase of thesystems. Most of these challenges are data handling, organizing, or structuring of the webapplications (Sridaran, Padmavathi, & Iyakutti, 2009). In this study the prototype will be de-

veloped using Microsoft ASP.NET 2008 Framework, which provides developers with theopportunity to create and deploy applications and services via the Web. In addition, a SQLServer 2005 database will be the data layer for the E-flea market website.

The evaluation will be performed to determine the level of usefulness and operability ofthe system after the system has been developed. The evaluation is based on the usability test-ing by using the System Usability Scale (SUS) proposed by (Davis, 1989). The prototype willbe evaluated by the stakeholders after the development process is done.

ANALYSIS AND RESULTS

In this part, the requirements models are described and documented using UML. The re-sults of this study discuss the requirements models elements namely a list of requirements,Use Case diagram, Use Case Specification, Activity diagrams, Class Diagram, Sequence dia-grams. In addition, content, hypertext and presentation modeling were part of the require-ments modeling. The results from the prototype evaluation were also presented.

The requirements model is based on the requirements gathered during requirements elici-tation phase. There are 33 requirements as presented in Table 1 and Table 2 below.

In the priority column, the following short hands are used:

Mmandatory requirements (something the system must do) Ddesirable requirements (something the system preferably should do) Ooptional requirements (something the system may do)

Table 1. List of the Functional Requirements

No. Requirement ID Requirement Description Priority

OFM_01 User login

1.

OFM_01_01 A User is able to login M2. OFM_01_02 User Name or/and Password is invalid D

3. OFM_02 User logout M

OFM_03 User sign up

4. OFM_03_01 A User is able to sign up M

5. OFM_03_02 The password fields are not matched D

6. OFM_03_03 The entered email is duplicated D

7. OFM_03_04 The fields are empty D

OFM_04 Administrators manage item categories


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Table 2. List of the Non-Functional Requirements

Consequently, a use case diagram is developed to visualize the functional requirements aspresented in Figure 3 below. It can be clearly seen in this figure, that there are five actorswith 10 use cases. Each actor associates with different use cases based on its role in the onlineFlea Market system.

8. OFM_04_01 An administrator able to create a new item category M

9. OFM_04_02 An administrator able to view an item category D

10. OFM_04_03 An administrator able to update an item category D

11. OFM_04_04 An administrator able to deletes an item category D


OFM_05 Administrators manage all members

13.

OFM_05_01 An administrator able to view peddlers records M

14. OFM_05_02 An administrator able to block a peddlers record D

OFM_06 Members manage personal record

15. OFM_06_01 A Member able to view his/her personal record M

16. OFM_06_03 The password fields are not matched D

17. OFM_06_04 The entered email is duplicated D


19. OFM_07 Administrators manage all offers

20. OFM_07_01 An administrator able to view all offers M

21.

OFM_07_02 An administrator able to block an offer(s) D

OFM_08 Members manage offer

22. OFM_08_01 A Member able to create a new offer record M

23. OFM_08_02 A member able to view his/her offer(s) D

24. OFM_08_03 A Member able to update his/her offer D

25. OFM_08_04 A Member able to delete his/her offer D


27. OFM_09 Users search offer M

OFM_10 Users comment/negotiate offer28. OFM_10_01 The Users able to comment/negotiate an offer(s) M

29. OFM_10_02 A required field(s) is empty D

No. Requirement ID Requirement Description Priority

OFM_11 Reliability issues

30. OFM_11_01 Each peddler must only have access to his offers. D

31. OFM_11_02 If the system broke down, it should be recovered by backup files. D

OFM_12 Usability issues32. OFM_12_01 peddlers must login to the E-Flea market at least once in 3 month D

33. OFM_12_02 Offers will last for only three months. D


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Figure 3. The Use Case Diagram of Online Flea Market.

The requirements of the flea market are presented using several UML diagrams. This isimportant because each of the UML diagram visualize the requirements from different per-

spective and usage. Thus, the following table represents the proposed requirements model andthe number of use of each element:

Table 3. The UML diagrams

No Diagrams Number of Diagrams

1 Use Case diagram 1

2 Use Case Specification 103 Activity diagram 10

4 Sequence diagram 7

5 Class diagram 1

Furthermore, the requirements model is also supported by content, hypertext and presenta-tion modeling. This is important because the online flea market is a web based applicationand therefore it is essential to show the dynamic aspect of a web application.

After having a comprehensive requirements model, it is crucial to validate it in order toensure the requirements model are complete, consistent and clear. Hence, the requirementsmodel is sent for the expert review to check on completeness, consistency and ambiguity. Af-

ter the expert reviews, the validated requirements model are transform into a prototype and

Administrator

Members

Peddler

Users

Buyer

User login

User logout

User sign up

Manage item categories

Manage all members

Manage personal record

Manage all offers

Manage offer

Search offerComment/negotiate offer


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been demonstrated to the potential users. The users used this prototyped and then they need toanswer a set of questionnaire as it is shown in appendix A.

In this study, perceived usefulness scale and perceived of ease of use scale (PUEU) wereassessed, which are hypothesized to be fundamental determinants of user acceptance (Davis,1989; Bangor,2008). However, the checklist included initially two fourteen-item scales foreach scale. After a set of studies and tests on its reliability, content validity and construct va-lidity, the measures were refined and streamlined in two six-item scales for the perceived ofusefulness and the perceived of ease of use (Davis, 1989; Bangor,2008) as it is shown in theappendix A. An each item out of the 12 items is scaled from one to five degrees based on apsychometric theory. The scales 1 represents the term Strongly Disagree, 2 represents Dis-agree, 3 represents Moderate, 4 represents Agree, 5 represents Strongly Agree.

A sample of 33 potential users were involved and randomly selected in the study using thequestionnaire to measure usersacceptance towards the system. The checklist consists of twosections namely General information and Evaluation Guidelines.

General Information

Demographic profiles are used in this study to descriptively conclude the number of fre-

quencies for each item. Table 4 and Fiqure4 below depicts that 6 respondents (19%) out of 33

respondents are majored in accountancy which makes most of the accountancy course fre-quency number is the highest followed by 6 respondents (15%) for other courses .

Table 4. A Distribution of Respondents Based on Courses

Course Number of Respondents Percentage (%)

Marketing 1 3

Agriculture business 1 3

Finance 1 3

Education in IT 1 3

Banking 2 6

Strategic studies 1 3

Accountancy 6 19

Bachelor of Business Administration(BBA) 2 6

Information Technology (IT) 3 9

Applied Linguistics 1 3

Operation Management 2 6

Doctorate of Business Administration (DBA) 1 3

Economic 3 9

Information Communication Technology (ICT) 3 9

Others 5 15


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Figure 4. A Distribution of Respondents Based on Courses

.

Respondents in different ages were responded to the questionnaire. Table 5 and Figure 5shows that 17 respondents (51%) were between 18 to 22 years old and they were the majorityin the survey, Followed by 10 respondents (45%) who their ages were between 23 to 27 yearsold.

Table 5. A Distribution of Respondents Based on Age

Ages Number of Respondents Percentage (%)

18-22 17 51.51

23-27 10 45.45

28-32 3 09.09

33-37 3 09.09

38-42 0 0

43-47 0 0

marketing

3%

agriculture

business

3%finance

3%education in

IT

3%Banking6%

Stratigic

studies

3%

Accountancy

19%

BBA

6%

IT

9%

Applied

Linguestic3%

Operation

Management

6%

DBA

3%

Economic

9%

ICT

9%

Others

15%


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Figure 5. A Distribution of Respondents Based on Age

Moreover, respondents gender was one of the assessed items in the survey whereby 33males and females responded to the questionnaire. As it can be seen in Table 6 and Figure 6below, females were the majority in the survey whereby 18 (54%) were females and 15 (45%)were males.

Table 6. A Distribution of Respondents Based on Gender

Gender Number of Respondents Percentage (%)

Male 15 45.45

Female 18 54.54

Figure 6. A Distribution of Respondents Based on Gender

0%

10%

20%

30%

40%

50%

60%

18-22 23-27 28-32 33-37 38-42 43-47

52%45%

09% 09%

00% 00%

Percentage

Age

18-22

23-27

28-32

33-37

38-42

43-47

0%

10%

20%

30%

40%50%

60%

Male Female

45%55%

Percentage

Gender

Male

Female


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Evaluation and Guidelines

Users acceptance towards the online flea market prototype is assessed in this section.Since the system targets the higher education district, students are considered main actors inthe system and their perceptions of usefulness and ease of use were scaled. Table 7 and Figure7 below illustrate the result of an overall assessment. Whereby, a majority of 59.08% of re-sponses agreed that the prototype is useful and easy-to-use while 8.25% responses disagreed.Therefore, the requirements model has succeeded delivering usersacceptance.

Table 7. A Distribution of Respondents on All Items in Percentage

Items1

(Strongly Disagree)

2

(Disagree)

3

(Moderate)

4

(Agree)

5

(Strongly Agree)

Item1 0% 9% 30% 52% 9%

Item2 3% 9% 30% 45% 12%

Item3 0% 9% 39% 39% 12%

Item4 0% 3% 48% 30% 18%

Item5 0% 6% 18% 64% 12%

Item6 3% 6% 33% 45% 12%

Item7 0% 15% 24% 42% 18%

Item8 0% 3% 24% 55% 18%

Item9 0% 0% 45% 39% 15%

Item10 0% 3% 42% 45% 9%

Item11 3% 24% 30% 39% 3%

Item12 0% 3% 21% 55% 21%

Averages 0.75% 7.50% 32.00% 45.83% 13.25%

Figure 7. An Overall Distribution of Respondents

0%3%

0% 0% 0%3%

0% 0% 0% 0%3%

0%

9% 9% 9%

3%6% 6%

15%

3%0%

3%

24%

3%

30% 30%

39%

48%

18%

33%

24% 24%

45%42%

30%

21%

52%

45%

39%

30%

64%

45%42%

55%

39%

45%

39%

55%

9%12% 12%

18%

12% 12%

18% 18% 15%

9%

3%

21%

0%

10%

20%

30%

40%

50%

60%

70%

Item1 Item2 Item3 Item4 Item5 Item6 Item7 Item8 Item9 Item10 Item11 Item12

1 (Strongly Disagree) 2 (Disagree) 3 (Moderate) 4 (Agree) 5 (Strongly Agree)


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DISCUSSION AND CONCLUSION

The paper discusses the major requirements needed for higher education district and howits elicited, modeled and finally verified. UML was used as requirements specification lan-guage to model all the web-based application models namely functional and non-functionalrequirements modeling, content modeling, hypertext modeling and presentation modeling.This paper has also presented the online flea market website whereby the other developmenttools were involved in the development process namely MS SQL Express 2005 and MSASP.Net 2008 as it is shown in the appendix B. The prototype was uploaded in a local serverwhere all UUM-Zone access pointsusers can communicate to the online market. According-ly, checklist questionnaires were giving to evaluate students acceptance towards the proto-type. A number of 33 users were involved in verifying the online flea market usefulness andease of use. Questionnaires measures were in two six-item scales for the perceived of useful-

ness and the perceived of ease of use. Results of the assessment revealed that the online fleamarket successfully delivered useful and ease of use functions. However, further requirementsrefinements are definitely needed for future work since the assigned time was barely suffi-cient to elicit and analyze the most demanded requirements.

The requirements model for online flea market can be a guideline in the future for devel-oping a flea market in higher education, It also can be a reference for researchers in visualiz-

ing the requirements using UML as well as the dynamic aspect of a web based application,Therefore, this requirements model contributes to the domain of requirements engineeringspecifically and to the body of software engineering generally.


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Firstly, Enter this URLhttp://10.19.183.140/OFM/to open the Online Flea Market website.

Secondly, Complete this Questionnaire, using the following scale:

1= Strongly Disagree

2= Disagree

3= moderate

4=Agree

5= Strongly Agree

Perceived Usefulness

1 2 3 4 5

The Online Flea Market ena-

bles me to accomplish tasksmore quickly.

Using the Online Flea Market

improves my job perfor-

mance.


increases my productivity.


enhances my effectiveness on

the job.


makes it easier to do my job.

Overall, I find the Online

Flea Market useful in my job.

Perceived Ease Of Use

Learning to operate the Online

Flea Market is easy for me.

I find it easy to get the Online

Flea Market to do what I want to

do.
http://10.19.183.140/OFM/http://10.19.183.140/OFM/http://10.19.183.140/OFM/http://10.19.183.140/OFM/


20/21

My interaction with the Online

Flea Market is clear and under-

standable for me.

The Online Flea Market is flexible

to interact with.

I find it takes a lot of effort to be-

come skillful at using the Online

Flea Market.

Overall, I find the Online Flea

Market easy to use.


21/21

Documents

Anonlinefleamarketinhighereducationusingc2ce Commercemodelarequirementsmodel Salaheddin 140507110958 Phpapp01