what aspects of it are of particular relevance to them. You do not need to categorise the stakeholders. Don't include the development team. (a) List and briefly describe the main functional requirements for tl There should be around 5-10. (b) List and briefly describe the main nonfunctional requirement LAABS. (a) Use the User Goal technique to develop a list of use cases for Present your list in a table that includes the participating case name and a brief use case description. (b) Use the Event Decomposition technique to identify any ac cases for the LAABS. These will probably be temporal and types. Present your list in a table that includes the event, ty
The case study: Light-As-Air Ballooning System (LAABS)
Light-As-Air Ballooning (LAA) is an organisation which operates hot air ballooning on the
Malaysian peninsula across from Singapore (the Singapore air-space is too busy and tightly
controlled to allow free-flying ballooning there). The company has a mixed fleet of
balloons and baskets and a team of pilots to cater for both small and large groups.
The five (5) smaller baskets have the capacity to carry up to 10 passengers each; six (6)
larger balloons and baskets can carry up to 20 passengers each. This is a relatively new
venture for this part of Asia, and the owner of this company, TEO Hong, is keen to see LAA
grow and expand.
Flights take place just before sunrise, and can be booked by individuals or groups, or can
be chartered (such as for wedding ceremonies and other special occasions). The larger
baskets are ideal for corporate and social group bookings.
As the business expands, Light-As-Air needs a new information system; as the current one
was based on Mr TEO doing all the bookings himself. The new Light-As-Air Ballooning
System (LAABS) must manage the booking system for the balloons, and maintain all
information about clients and flight sessions. It must also manage the information about
balloon and basket maintenance, and keep track of pilot and other staff certification.
Customers book online or at the LAA Singapore city office. As the flight sessions are heavily
subscribed, customers are sent reminder texts about their flight the week before and the
day before. Cancellation without incurring a charge is only possible up to 4 weeks before the
flight (after that the full price is payable). The LAABS is not required to handle any payment
information as this is done by a third party system. Customers are informed the night before
the booking date if the flight is cancelled due to weather.
The flights are only booked out in lots of ten (10) (small balloons) or twenty (20) (large
balloons), and each flight session must be accompanied by a senior pilot and a staff member
who act as co-pilot. These staff members must have first aid training, a Commercial Balloon
Pilots Licence, and have passed a medical within the last 3 months. The LAABS must ensure
that the staff have current first aid certificates and pilot certificates, as well as regular
medical check-ups. This will require alerts to the relevant staff members at the appropriate
times.
Customers must also meet various conditions: the office will need to know the weights of
the passengers in each party and if anyone has had recent injury or surgery, or is
pregnant. This is confirmed when they book, along with name, address, and contact
phone number, and the date of the flight required. Details of all customers in a party are
required, and all customers must sign a statutory declaration that the information they
provide is true. Insurance and OHS requirements mandate permanent storage of these
declarations.
Each flight session is booked out for two (2) hours, of which between 45 and 60 minutes
is actual flying time, with 30 minutes preparation (check-in, safety briefing and boarding
and balloon inflating) and 30 minutes disembarkation time (this includes bus transport
back to the launch site). Customers are expected to make their own way to/from the
launch site.
2
Customers may book two (2) different types of experience:
• Flight– this includes flight, loan of warm jacket for the duration of the flight,
Certificate of Participation and transport back to the launch site only
• Deluxe experience – as well as ‘Flight’ inclusions, this adds a post-flight
breakfast, champagne and photo opportunities with the (inflated) balloon
and pilot.
Safety and comfort of customers and staff is obviously paramount for LAA. Before each
flight an inspection is made of the basket and balloon (including physical damage,
integrity of equipment, balloon
thorough technical check of the equipment after each flight session. These checks are
noted by the system.
There is a full mechanical check of all equipment by a service engineer at the beginning
and end of every working day, and in addition each balloon inflating and control system
must be fully serviced by the manufacturer at least every three months or every 50 hours
of use, whichever is sooner. The mechanism is removed from the balloon structure and
sent to the manufacturer for examination and possible repair/replacement. This takes 4
days, so to keep the business operating TEO Hong tries to stagger the downtime so there
are always at least two balloons of each size in service.
The hours of balloon use are logged by the LAABS, by adding the number of session
minutes to the usage log at the end of each session. When a balloon reaches 50 hours of
use it is flagged as ‘in maintenance’. On reassembly the number of usage hours is reset.
LAABS also records the dates, times, and details about each service.
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