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1. Create a model for a cooking recipe generator. Given a list of ingredients, the recipe generator should output a list of recipes starting with the simplest recipe to the most complicated recipe. Optionally, the recipe generator should also accept cooking instruments as input, which will then output the simplest recipe that could be made with the cooking instrument. 2. How would you apply distribution strategy in marketing to the modelling of distributed software. The marketing distribution strategy includes operation management which means managing the supplier, manufacturer, wholesalers, retailers and consumers, and the respective channels. 3. Explain the difference between a UML sequence and state diagram. Why would you choose one over the other. 4. Choose your favorite design pattern. Explain it’s purpose, components, and an antipattern for it. 5. Do you think that Z is a “timeless” modeling language? Will it still be relevant with changing technologies? 6. Explain the difference between design patterns and architecture patterns. 7. Model RIT student info system course registration; evaluate and analyze implementation 8. Model the following procedures. Use all the modeling techniques required to make the design as clear as possible: ∙ Hosting a birthday party. ∙ Driving a manual car. *Model the realworld scenario, not a system that does those things. 9. Assume a supermarket such as Walmart or Target; design a system that would provide users with a detailed inventory and realtime locations of items. The system/app would enable the users to search and locate the aisle locations for products using GPS. The app would also provide the users with information about stock of products, products on sale, and empty billing counters. 10. The Rochester RC (Radio Controlled) Planes club wishes to implement a down scaled realization of the aviation industry to enhance their aviation hobby. How would we design a software that would provide a realtolife implementation of the aviation experience. Each plane handler would have a personal hand held display device that would provide updates similar to an Air Traffic Controller would. Consider elements such as virtual weather, pay load on planes, air traffic and emergencies. 11. You are to design a software for a Hotel that can help its management with day to day activities like managing reservations, managing employees, and payroll. The software should be
designed to be scalable and should allow for additional functionality to be added post release. The requirements for the property management system are outlined below. ○ The software would run on multiple machines located at different workstations in the hotel. All machines would be of the same platform so a platform dependent software is acceptable. ○ The machines would be connected via a local network and so communication between different nodes should be possible. All data would be stored on a server stub which also is the database server of the system. ○ System should allow for reservation of rooms, system should also allow for multiple reservations by a single person. ○ There are different type of rooms in the hotel and each has a different tariff and availability for them. ○ The system would have two users; an administrator who has complete access to all modules and a basic user who has limited accessibility to the modules based on the department the user is working for. ○ Each room has a dedicated housekeeping staff and this should be automatically assigned by the system based on employee availability. ○ The hotel also has its own cab service, the system will also be responsible for managing cab reservations upon customer requests. The bills for the cab serve would be added to the customer’s bill for his/her stay. ○ The system should keep a track of the hotel’s account books and also store payment receipts. ○ Employee salaries should also be kept track of. Each employee would have access to his/her paystub through the system. ○ The software should allow audits and revenue analysis. This would be on a daily, monthly, quarterly and yearly basis. ○ The software should allow for new rooms and employees to be added to the system. ○ Any requirement not specified may be assumed. You are free to use any of the modelling tools to model the requirements and specify different constraints. 12. Monroe County wants to set up a disaster management system for the community. You are to model a preliminary design that meets the specified requirements. This design would have to be accepted by the officials before a decision can be made and hence it is important to design a performance critical system. The initial requirements are stated below: ○ The system would get feeds from various department such as the meteorological department that keep track of any possibilities of a disaster. Reacting to these feeds is very time critical and would contribute to the acceptance off the design. ○ People would subscribe to the system for emergency updates. Hence the system should keep track of registered users, their location details and their notification preferences. ○ The system will also interact with various disaster management authorities such
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as the local police department and the fire stations. The fire stations would receive information from this system and hence it is expected that the system is reliable. Residents may choose to deregister from the system and have the option to update their contact information. The system should maintain statistics with regards to the Number of residents, Number of people travelling in and out of the county work. Other statistics that may help the system send out appropriate notification should be assumed. The disaster management authorities would have complete access to the system and can request for any data that should be supplied by the system immediately. In case of an emergency the system should send out appropriate notification to subscribed residents. These notification may include evacuation plans as decided by the authorities or may simply be warnings and alerts. Any requirement not specified and is crucial to the design may be assumed appropriately.
Use appropriate modelling techniques to design and specify constraints on the system.
13. Elevator Problem An elevator is to be installed in the Golisano School of Computing building with n floors. You are asked to design the logic required to move the elevators between floors according to the following constraints: •Each elevator has a set of n buttons, one for each floor. These illuminate when pressed and cause the elevator to visit the corresponding floor. The illumination is canceled when the elevator visits the corresponding floor. •Each floor, except the first floor and top floor has two buttons, one to request and upelevator and one to request a downelevator. These buttons illuminate when pressed. The illumination is canceled when an elevator visits the floor and then moves in the desired direction. •When an elevator has no requests, it remains at its current floor with its doors closed. 1.Model the elevator using UML showing the following diagram: a)Use case diagram and description b)Class diagram c)State chart d)Sequence diagram 2.Model the constraints using OCL or Z. 14. Crossroad modeling Crossroads has 6 different food stands (pasta and pizza, salad station, grabandgo, Deli, Grill, Asian Cuisine), a convenience store, and two cashiers. Customers can order from any food stands simultaneously, and each food stand has its own menu and list price. Crossroad has two cashier stands available where one or both cashiers operate at the same time. 1.Model the ordering and checkout process of Crossroad’s dining service using the following
diagrams: a)Use case diagram and description b)class diagram c)state chart d)sequence diagram You are free to make assumptions. 15. The Federal Aviation Administration (FAA) would like to formally model the United States’ air transportation system. Think about how this system is set up. For example, there are airports, airlines, airplanes, passengers, etc. All of these parts are interconnected. Your goal is to statically model United States air transportation in the Alloy language. Specifically, the FAA would like to find the top four critical areas of the system. Where can interactions among component parts go wrong? Where can interactions become a minor inconvenience? Note that there is no set answer. However, You should arrive at your conclusions by setting up Alloy assertions and facts around your model. See what breaks. At a minimum, your model should include these parts: 1. Airplane 2. Airline company 3. Passenger a. Child b. Adult c. Etc 4. Luggage 5. Airport 6. Boarding pass 7. Staffa . Air marshall b. Pilot & Copilot c. Flight Attendant 16 . Visionary thinking: will software modeling ever advance to the point where automation will kick programmers and software engineers out of their jobs? Why? How far into the future would this occur? How far along are we now? Will some people still need to oversee autocoding machines? 17. What is the best way to specify and design models, abstractly or using specific implementation details? What is the best approach to transform requirements intro working products? 18 . Will we at some point have a natural language modeling tools that will be capable of produce models, code and implementation just from descriptions and requirements? 19. Parking Lots Management System
The system is used to manage a garage by counting number of parking vehicles in the garage and letting the vehicles in if there are available parking lots. The system will support several types of vehicles including regular cars, vans, and motorcycles. The garage has more than one story, and each story has a maximum number of parking lots. Each story is equipped with a sensor to detect goingin and goingout vehicles. Each vehicle must equipped with a legitimate ID device, whose information is stored in the database of the system, to be able to park. Each story has a crossing gate to let the vehicles in. The gate bars will be raised automatically when its sensor detect a legitimate ID device. However, if the story does not have any more available parking lots, the gate bar will not be raised. The gate bar is also will not be raised if the customer who owns the ID device has not paid to park there before the due date. If a story is being maintained/repaired, its maximum number of available parking lots is automatically reduced to half, and vans are not allowed to park. One customer cannot have more than 3 ID devices. Given the requirements above, model the system with any appropriate modeling technique that you think it might fit the situation. 20. Suppose your team receives code from an existing project without documentation or a model. How helpful and effective would reverse engineering be in generating a model for better understanding of the code? How detailed should be the reversed model be? Is this approach feasible, what are the tradeoffs? 21. Pretend that you are a software developer for a company and want to convince your manager to incorporate a new software modeling technique (UML, OCL, Znotation) in the software development cycle. You need to convince your manager with research on how this modeling technique would improve software development for your team. Write a 1 page proposal backing up your claims with real research. 22. Model the Family Library Management System.
Brief Problem Statement. A family owns several family libraries in different locations. The main library is in the father’s house, several libraries are at his sons’ house. They exchange books among each other and in the process some books are dislocated. The family needs a system to link the libraries and enable the family members to look up books at any library location. The system should also provide a mechanism for borrowing and returning books to their location.
System Features 1. The libraries contain a collection of books, transcripts and periodicals. Only family members are allowed access to the collection. 2. The system should allow any family member to search through the collection in any of the libraries. 3. Library collections are available for borrowing except for transcripts and old edition books; they are not allowed to be taken out of the library.
4. The system should keep track of the collections, storing the original location, current location, and the expected return date. 5. The system provides notifications of returned collections, new added collections and redundancy warning (if any redundancy occurs in any collection). 6. For each collection, the system stores a document that contains a preface and index of the content. 7. The system also stores the review on a book by any family member. 8. For each library, the system stores its capacity; if the library is full the system provides information on the capacity of other locations. 23. Is a UML a Panacca or Malady? Answer with your own opinion and a discussion to support your answer
