
 
  To activate the bought product 
  The client must introduce the data of chosen 
software and the code of purchase obtained 
when paying 
  The site sends to the client the code of 
activation to the specified email. 
 
Figure 4: Purchase steps within the web site. 
In order to assure this process unloading - sale - 
activation, the products of the site are sold in 
individual way giving back for each one of them a 
purchase code that allows its later activation. By this 
the concept of "shopping cart" has not been used, it 
is to say products are sold separately and by means 
of independent processes of purchase.  
The data necessary to make the activation, 
information of products and the client are stored in a 
centralized data base. The architecture of the system 
therefore is structured in three levels, light client - 
servant of applications - database Server. 
6.1  Personal data storage 
The effective legislation in Spain, LOPD, establishes 
that it is necessary to notify in the Data Protection 
Agency all the files that contain personal character 
data (clients, suppliers, associate, personnel, etc) 
which they allow to identify physical people. 
In the case of the created web site, the only data 
that is stored is the email of the purchaser, which by 
itself does not consider information that can cause 
lost or damages to the client. This single data is used 
to make the dispatch of the activation code, in this 
sense is recommendable, but no obligatory, to 
communicate the article 5 of the LOPD (MI, 1999), 
including a clause in the own electronic mail (of this 
form, a greater security about the origin of the data 
and the identity of the file owner is obtained).  
If the purpose of the email stored was to make 
indiscriminate shipment of mails containing 
publicity or promotions, is due to consider that its 
prohibit from the approval of the LSSI (MITC, 
2002). In this point LLSI, says that the Spam made 
by Spanish companies or which they have an 
establishment in Spain is prohibited. 
On the contrary, if they only want to send 
electronic advertising, it’s necessary to obtain the 
express consent of the user (making click in a field 
specifically prepared for it), not being valid those 
abusive clauses that they suppose a consent no 
emitted specifically.  
In the case of collecting more personal data, as 
for example the full name if it would be obligatory 
to register the data base used to store the data of 
activated products. To clarify in this point, that the 
data gathered in this form are not going to be 
provided to third parties and the user has the 
possibility of modifying them or of eliminating them 
through the contact section of the web site. 
7 CONCLUSIONS 
This paper make a revision of the aspects most 
important to consider in the processes associated to 
the electronic commerce. In this sense the electronic 
commerce is a useful tool to make businesses, but 
the existing distrust has put in doubt its 
development. Therefore a very important aspect, due 
to the type of information that is handled, is the 
relative one to the security necessary to guarantee 
the transactions.  
Is an interesting fact that in all activity of 
purchase, which continues worrying is the operation 
of payment, that is to say, the moment in which the 
buyer faces the window where has introduced its 
credit card data and doubt at the time of pressing the 
button "Send". Therefore, one of the main 
conclusions extract is that the true barriers that 
restrain the ecommerce development are not as 
much technological as human. At the present time 
the existing technology is able to guarantee the 
privacy and the security of the made transactions.  
As fundamental conclusion, the propose solution 
innovates no single in the implemented modality of 
payment, but that in addition considers the effective 
legislation and makes agile and assures the process 
purchase with the activation of each product in an 
individual way. When activating the product we 
improved the scalability, customisation and 
availability in real time of the same one, since at any 
moment it allows to know unloaded and activated 
copies of software.  The developed system has been 
designed in such a way that in future new 
functionalities and improvements can be introduced 
easily and quickly. Among them, emphasizes the 
possibility of including in all the pages of the site 
compatibility with standard WAI 
(http://www.w3.org/WAI)  and access multi device. 
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