|
ContactCenters V. 0.9.9. |
||||||||
PREV PACKAGE NEXT PACKAGE | FRAMES NO FRAMES |
See:
Description
Interface Summary | |
---|---|
ContactFactory | Allows contact sources to create contact objects of user-defined classes. |
ContactSource | Represents a contact source which produces contacts during a simulation. |
ContactStepInfo | Represents an information object about a single step (end of service, exit of waiting queue, etc.) in the life cycle of a contact in the contact center. |
NewContactListener | Defines a new-contact listener that receives incoming contacts for further processing. |
Class Summary | |
---|---|
Busyness | FOR NOW, THIS CLASS IS UNUSED. |
Contact | Represents a contact (phone call, fax, e-mail, etc.) into the contact center. |
ContactArrivalProcess | Represents a contact arrival process modeling the arrival of inbound contacts. |
ContactSumMatrix | This sum matrix can be used to compute contact-related observations. |
CorrelationMatrixCorrector | Implements the algorithm POSDEF that transforms the approximate correlation matrix that may contain negative eigenvalues to the valid positive definite correlation matrix. |
CorrelationMtxFitting | Fits the parametric model for the correlation matrix using method of least squares. |
DirichletArrivalProcess | Represents an arrival process where the number of arrivals are spread in periods using a Dirichlet distribution [3]. |
DirichletCompoundArrivalProcess | Represents a generalization of the non-homogeneous Poisson process where the arrival rates are generated from a Dirichlet compound negative multinomial distribution [19]. |
FixedCountsArrivalProcess | Represents an arrival process in which the numbers of arrivals per-period Cp (the counts) are given (in a file or directly). |
GammaParameterEstimator | This class implements the parameter estimation for the doubly Gamma-Poisson process. |
NORTADrivenArrivalProcess | Represents an arrival process in which the numbers of arrivals per-period are correlated negative binomial random variables, generated using the NORTA method. |
PiecewiseConstantPoissonArrivalProcess | Represents a non-homogeneous Poisson arrival process with piecewise-constant arrival rates. |
PoissonArrivalProcess | Represents a Poisson-based contact arrival process. |
PoissonArrivalProcessWithInversion | Defines a Poisson arrival process with arrival rate Bλ(t) at time t and generated by inversion. |
PoissonArrivalProcessWithRandomRates | Represents a poisson arrival process with piecewise-constant randomized arrival rates following a user-defined distribution. |
PoissonArrivalProcessWithThinning | Defines a Poisson arrival process with arrival rate
Bλ(t)≤B![]() |
PoissonArrivalProcessWithTimeIntervals | Represents a Poisson arrival process with piecewise-constant arrival rates that can change at arbitrary moments during the simulation. |
PoissonGammaArrivalProcess | Represents a doubly-stochastic Poisson process with piecewise-constant randomized arrival rates [13]. |
PoissonGammaNortaRatesArrivalProcess | Represents a doubly-stochastic Gamma-Poisson process with piecewise-constant randomized correlated arrival rates. |
PoissonUniformArrivalProcess | This arrival process can be used when the number of arrivals per period Ap is known (when B = 1). |
RandomTypeContactFactory | Represents a contact factory that can create contacts of random types. |
ServiceTimes | Stores service times for a contact. |
ServiceTimesAgent | Stores service times for a contact. |
SimpleContactFactory | This implements the ContactFactory interface to
instantiate Contact objects
with fixed parameters. |
SingleTypeContactFactory | Represents a contact factory used to create contacts of a single type. |
StationaryContactArrivalProcess | Defines a contact arrival process with inter-arrival times following a stationary distribution. |
TrunkGroup | Represents a group of trunks, i.e., phone lines or more generally communication channels, in a contact center. |
Exception Summary | |
---|---|
ContactInstantiationException | This exception is thrown when a contact factory cannot instantiate a contact
on a call to its ContactFactory.newInstance() method. |
Manages contact arrivals into the contact center system.
Any contact traveling in the system is represented by an object from
the
Contact
class being defined in this package.
This class defines a number of attributes associated with all
contacts, and the user can add custom attributes by defining a subclass.
Although an object representing a
contact can be freely instantiated, it is usually constructed by
a contact source. Two types of contact sources are available:
contact arrival processes provided by this package, and dialers
supported by the umontreal.iro.lecuyer.contactcenters.dialer
package.
Arrival processes determine when contact objects need to be created,
according to specific (stochastic) arrival processes.
Each concrete arrival process must correspond to an
algorithm for generating inter-arrival times.
These times could depend on the entire state of the system in a complicated way,
but they often depend only on the simulation time and
previous inter-arrival times.
For each process, the first arrival is scheduled when the arrival process is
started, often at the beginning of the simulation.
Figure 1 gives a UML diagram for this contact
creation facility.
The factory design pattern is used to allow the sources to construct
contacts without knowing their types explicitly.
The ContactFactory
interface specifies a method called
newInstance returning a newly-constructed and configured
contact object. A contact source can create contacts from any class that
implements this interface simply by invoking this newInstance method.
Thus, changing the type of contact (and the name of its explicit constructor)
requires no change to the implementation of the contact source.
When a new contact occurs, it is instantiated by the associated factory and broadcast to the registered new-contact listeners. Then the next arrival is scheduled. Each contact source is assigned a factory that typically constructs contacts of a single type. All contact sources can be initialized, started, and stopped.
|
ContactCenters V. 0.9.9. |
||||||||
PREV PACKAGE NEXT PACKAGE | FRAMES NO FRAMES |