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ABC Realty Company Real estate agents at the ABC Realty Company rely on paper files and index cards to track buyers, sellers and house listings. The company, Happy Homes Real Estate wants to automate the manual system. Currently, homeowners selling their homes call ABC Realty. An agent is assigned to prepare the listing form. Details about the house and the property are spelled out on the form. An index card is used to keep information about the seller When a potential buyer calls, a buyer's info form including the buyer's information and amenities required is completed. Once a month, ABC Realty sends potential buyers current listings including addresses. If the potential buyer finds a house, he or she fills out an offer form. This offer is forwarded through the real estate agency to the seller, who responds with either an acceptance or a counter offer form.
Please complete the following:The system will need to record data about what entities? What specific data about the entities will need to be stored? Create the following diagrams: a context diagram a workflow diagram an activity diagram a sequence diagram.
Write a set of rules combining the secrecy controls of the Bell-La Padula model with the integrity controls of the Biba model.
Estimate the maximum aggregate I/O transfer rate in this system. Hint: Only one device at a time can be serviced on a selector channel.
Getting to know the industry in which a company operates is a critical factor for leveraging information systems and gaining a competitive advantage.
Points T1, T2 ,and T3 are 25 miles apart, and points C1 , C2, and C3 also are 25 miles apart. If telephone lines cost $1 per mile, determine the line cost for three?
How would you display the man page for shadow in section 5 of the system manual?
Explain the conceptual model employed in the design of these types. Describe the analogies and concepts these monitors expose to users, including the task-domain objects users manipulate on the screen.
As a security manager for XYZ Corporation, you are asked to find out amount of access that new user needs. You contact user and ask them to help you understand what kind of access they need.
Write the exploratory essay in which you distinguish online learning with classroom (on-ground) learning. Your estimation may incorporate preparation time.
Suppose you are designing a computer system and are considering a change to your original design. Estimate how much speedup would be gained from this change. You must.show your work.
Prove the following. Remember to make only one step at a time and not skip steps. Remember to write what rule allowed you to make each step, and which lines you applied it to
Explain the significance of top management commitment and development of standards for successful project management. Give examples to show the significance of these items based on experience on any type of project.
1. Recover the corresponding encryption key knowing that the first ciphertext word corresponds to plaintext "Recall".
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