Alabama Book Store Inc. Information System DFD

ERD Bookstore

Activity 7

Activity 6

PDIS Midterm Lab Exam

Activity 5

Activity 5 - Software, Hardware and Networks:

1. Which would you rather have—a handheld computer or a tablet computer? Why?

                I’d rather want to have a tablet computer.  Although handheld computers are smaller and occupy less space, I still want a tablet computer because it gives me a better view because it has a bigger screen compared to a handheld computer.  Applications are also easier to view and use because the tablet is bigger as well, the options are not that crowded and compressed.

2. If cost were not an issue, describe the characteristics of your ideal computer. What would you use it for? Which operating system would you want it to run?

                I want to use a computer for gaming purposes.  In the first place, I was into computers because of gaming.  The characteristics of my ideal computer would be mainly a core i7 processor, 1TB hard drive, 16-32GB RAM and 8GB Video Card.  That four is the basic characteristics of my ideal computer which allows me to play even the heaviest type of game available as of now.  Microsoft OS will be my preferred OS for my ideal computer, specifically Windows 7.

3. Define Software as a Service. Discuss some of the pros and cons of using software as a service.

                Software as a Service allows organizations to access business functionality at a cost typically less than paying for licensed applications since Software as a Service pricing is based on a monthly fee.  It is also hosted remotely so the hardware investment won’t be necessary.

PROS:

·                             It cost less

·                             It is easier to maintain

CONS:

·                            Communication(requires the internet)

·                            Data Security

 4. Why is an organization that employs centralized processing likely to have a different management decision-making philosophy than an organization that employs distributed processing?

                A centralized processing only has one management that is the one responsible for decision-making philosophy because it is centralized.  A distributed processing cannot have only one management to be responsible for the different branches available because it will take time and the efficiency of each processes must be efficient enough equally with each other.

 5. Social networks are being widely used today. Describe how this technology could be used in a business setting. Are there any drawbacks or limitations to using social networks in a business setting?

                The social networking sites now allows advertisements in some parts of their web page, example would be facebook.  It can be used in a business setting because it allows entrepreneurs to publish and advertise their products or services in the web through the social networking site that can be seen by almost everyone.  It can increase their market reach and might help their sales to increase.  The drawbacks of this type of business setting is that not all that inquires are buyers and also the sellers can also be scammers as well.  Security will be an issue and both the buyers and sellers must be careful in transacting through the web based business setting.

6. One of the key issues associated with the development of a Web site is getting people to visit it. If you were developing a Web site, how would you inform others about it and make it interesting enough that they would return and tell others about it?

                First is to develop a web site that is the current trend that fits the people.  As of now, social networking sites or social media is the current trend.  One must not only develop a social networking site with the same features of the other social networking sites available.  You can start by informing your friends about it and even publish or advertise it in other social networking sites for others to be curious and informed about it.  That is the time in which they can know what the site is all about and depending if they enjoyed or they snubbed your site will determine if they will tell others about it.

Activity 4

Activity 3

SCRUM Model

·                  The team that is going to develop the enrollment system of a particular school must take note of all the requirements that is needed.  From the stakeholders, objectives, resources, breakdown of task and all the way down to the users of the system developed.  The project team is also assembled and their SCRUM master is the one responsible for the success of the team.

·                    The development of the system is being started, not as individuals but as a team.  The SCRUM master must carefully assign the task and ensure that there is teamwork so that the development of the system is done in an orderly way to ensure that the output of the team is reliable.

·                     After the team has come up with a prototype, it must be presented to the project stakeholders and the users for further evaluation.  The project stakeholders and users play a big role in improving the overall capabilities of the system.

·         The system is now ready to be implemented with the approval from the project stakeholders.  Implementation does not guarantee 100% error-free but it will help in detecting further errors and help improve the system as a whole.

·                  After the final system is done and implemented, it must be maintained thoroughly to ensure that it is always operational and if there will be errors, it can easily be detected and fixed.  Maintenance ensures that the system is consistent on giving the users the functionality that it was designed for.  It is important that system maintenance is done consistently.

·                        The team can now celebrate after the success of the project.  The success of each member of the group will determine the success of the group itself.  Because in SCRUM method, the success of the group is more important than the success of each member.

Waterfall Model

Requirements:

·                   The team that is going to develop the enrollment system of a particular school must take note of all the requirements that is needed.  From the stakeholders, objectives, resources, breakdown of task and all the way down to the users of the system developed.

Design:

·                After the team has an overall view of the system, they must now carefully create the design from the system analysis and the design which includes the GUI or Graphical User Interface.  The Software Engineering which includes the database design.  After a prototype is made, it must be presented to the project stakeholders for approval for evaluation and to review the further improvements.

Implementation:

·                  After carefully evaluating the system, it must be approved for system implementation.  This phase is for the system to be further tested including its functionality and other elements so that it the users are ensure that it is operational.

Verification:

·              The implemented system can still further be improved after observing and evaluating it during the early parts of its implementation.  After the said changes are done, it will now be verified so that the final system will be opened to the users.  This time, the final system must be 100% operational to ensure up-time.  The project stakeholders must agree for the system to be verified if it is a success or a failure thus it will determine if it is to be implemented or disposed.

Maintenance:

·                 After the final system is done and implemented, it must be maintained thoroughly to ensure that it is always operational and if there will be errors, it can easily be detected and fixed.  Maintenance ensures that the system is consistent on giving the users the functionality that it was designed for.  It is important that system maintenance is done consistently.

Activity 2

1.  An ideal automated class registration system for a college or university must include a very reliable hardware, complete software which includes the possible conditions that is handled by the current manual class registration that the university has and a very fast and reliable network that is where the data flows.  The current class registration of my university is still being developed and tested, it is not yet implemented online. But as far as functionality goes, I think that it will be a complete and automated one that will greatly help the students and the faculty of the school.

2.  Upstream:

     a. Blank CD or Used CD

     b. Searching - finding the trending music genre.

     Downstream:

    c. Customer Inquiry - customer service that allows the customer to ask or inquire about the product

   d. Burning of music to CD - transferring to the CD the desired songs that a customer orders.

    e. Display/Posting - displaying the available CDs on the website to allow the customer see the product.

    f. Shipping - after payment was given, the order may be delivered via third party courier depending on the geographic location of the customer.

3.  Using a virtual reality to enhance learning experience for new automobile drivers can increase a student driver's skills in driving and maneuvering a car.  It can help the driver learn the basics of driving, from turning on the engine, turning the steering wheel, familiarizing the controls and different parts of a car.  It gives great benefits for the student driver to test how good his/her skills are in driving.  A drawback can be that real driving is still different from a virtual reality.  I think that not all possible hazards can be experienced in a virtual reality set up.

Case 1

1.  It created a system that generates insightful reports and visualizations about medical  conditions on a regular schedule and on demand.  Business intelligence or BI systems were designed to extract, or mine, useful information out of the data collected by businesses or organizations into databases. That data may consist of detailed patient symptom information collected at the time of an examination. Doctors knew that about 6 percent of patients complain of flu-like symptoms onany given day. When the EMA BI system reported that 30 percent of patients were arriving with flu symptoms, the doctors warned the country that H1N1 was on the move. This alert provided medical professionals and citizens the time needed to take action.  The EMA BI system helped them detect the outbreak based on the information that was gathered by system.

2.  The human intelligence feeds the machine intelligence with data.  The machine intelligence then manipulates and sorts the necessary information needed that will be processed by the EMA BI system which is designed to extract or mine useful information out of the data collected.  From then, the users sees the reports and from it they make critical conclusions and judgement based on the information that is given to them by the EMA BI system whether to confirm if there is an outbreak or a false alarm.

Sample 2

Sample 1