Architecture
See http://www.sei.cmu.edu/architecture/definitions.html
Cab
A taxicab.
Cab driver
The driver of a taxicab.
Cabbie
Another name for cab driver.
CabRideAssignment
This unintuitive moniker describes the state a customer reaches after having a cab assigned to him. The customer starts out first in a state where no cab has been assigned (a RideRequest) and then moves to this state (a CabRideAssignment) where the customer's data will reside in the "customers" and "ridelog" tables in the database. A CabRideAssignment is immortal in the sense that some record of it will always remain (thanks to the database) but is also a flexible entitiy as it can be updated up until the ride is over (rideHasFinished is called) though currently there is no enforcement of this rule.
Corporate Account
Agreement with a company allowing that company's employees to use Evergreen's services
by charging a common bank account.
Customer
Somebody who rides in a cab. This can either mean the actual person or the object that represents that person.
CVS (Concurrent Versions System)
An open-source network-transparent version control system. This is the version
control system that we are using.
This is supported by the Eclipse IDE
Data Store
Module Responsible for *data backup, *data storage (for reports, etc)
Holds employee information, customer information, ride information, fleet information
Database
One possible way to implement the data store.
Dispatcher
Module responsible for interface with human dispatcher, updates to model (new
customer, manual dispatch, queue adjustments, etc), displays current system
state, traffic updates...
Eclipse
The IDE (Integrated Development Environment), available free from http://www.eclipse.org,
that we are using in the class. We are using Version 2.0. The Java Development
Toolkit (JDT) gives Eclipse IDE Java support. Eclipse must run on machine w/ JRE
or JDK 1.3+.
ETA
(Acronym) Estimated Time of Arrival. In reference to the project, the expected time that the cab will arrive,
represented by Java's Date class.
Fireman
Autobuild system. W/ each commit to CVS, Fireman will rebuild. The status of
builds can be found on the
Fireman Status Page
GPS (Global Positioning System)
Lasers and transistors...
Model
Module that represents the "real world." It is responsible for holding current
state data and providing access and updates to this data. Maintains zones,
waiting customers, open cabs, busy cabs, etc.. information. Initiates ride
request events to Scheduler to reserve cab for waiting customers; Receives
updates from dispatcher, scheduler, cab consoles; updates storage when
necessary;
RideRequest
This unintuitive moniker describes the "limbo" state where a customer resides in before being assigned to a cab. Essentially, the customer has requested a ride but none has been assigned to him (via the scheduler.) RideRequest data is stored in the database in an aptly named "riderequest" table. Upon being assigned to a cab, that data is removed and put into the "customers" and "ridelog" tables as appropriate. Data in the "riderequest" table corresponding to the customer who has not been assigned to a cab can be updated (if necessary.) It is mortal in the sense that it describes a temporary customer state that will transition to a permanent state (see CabRideAssignment) and lose its representation in the database (the temporary data will be deleted.)
RMI
(Acronym) Remote Method Invocation
The RMI system allows an object running in one Java Virtual Machine (VM) to
invoke methods on an object running in another Java VM. RMI provides for remote
communication between programs written in the Java programming language.
Scheduler
Module receives cab requests, finds cab, updates model with cab reservation. It
is responsible, given a customer's info, and the current state of the model,
finding an appropriate cab for that customer.
Specification
Mr. Webster says: a detailed precise presentation of something
Supervisor
Better than a regular visor...
Teams
Like the Seattle Mariners, or the 1979 Denver Broncos
Zones
Geographic subdivisions of the domain in which the cabs operate.