Appendix B - Constant Definitions

In this appendix, the different Constants that are relevant for Module and Business System Developers will be described. Basically, they can be split into three categories:

Manufacturer codes
Module Categories
DataTypes

Manufacturer codes

Each HIMSA licensee is assigned a unique manufacturer code. This code is used to tell Noah:

if the module is from a HIMSA licensee (modules without a valid manufacturer code will not be displayed)
if the licensee already has a module button displayed on the Module Bar

You need to contact Himsa to get a manufacturer code - contact information can be found at Himsa webpage - www.himsa.com.

Module Categories

There are three types of modules: measurement modules, fitting modules and other modules. Upon installation, a module must tell NOAH to which category it belongs.

Constant	Value	Meaning
mcFitting	0	Fitting module
mcMeasurement	1	Measurement module
mcOther	2	Other type of module

DataTypes

When a module needs to store an action in the NOAH database, it must inform NOAH of the data type of the action to be stored. The currently defined types of data in the NOAH 3 system database are listed below.

Constant	Value	Meaning
dtcAudiogram	1	Audiograms of different types, both ears
dtcREM_L	3	Real Ear Measurements, left ear
dtcREM_R	4	Real Ear Measurements, right ear
dtcHITest_L	5	Hearing Instrument tests, left ear
dtcHITest_R	6	Hearing Instrument tests, right ear
dtcERA_L	7	Electric Response Audiometry, left ear
dtcERA_R	8	Electric Response Audiometry, right ear
dtcSOE_L	9	Spontaneous Otoacoustic Emissions, left ear
dtcSOE_R	10	Spontaneous Otoacoustic Emissions, right ear
dtcTEOE_L	11	Transient Evoked Otoacoustic Emissions, left ear
dtcTEOE_R	12	Transient Evoked Otoacoustic Emissions, right ear
dtcDPOE_L	13	Distortion Product Otoacoustic Emissions, left ear
dtcDPOE_R	14	Distortion Product Otoacoustic Emissions, right ear
dtcImpedance_L	15	Impedance measurements, left ear
dtcImpedance_R	16	Impedance measurements, right ear
dtcLoudnessScaling_L	17	Loudness Scaling, left ear
dtcLoudnessScaling_R	18	Loudness Scaling, right ear
dtcMCR_L	19	Most Comfortable Range measurement, left ear
dtcMCR_R	20	Most Comfortable Range measurement, right ear
dtcNYS_L	21	NYS, left ear
dtcNYS_R	22	NYS, right ear
dtcVideoOtoscopy_L	23	Video otoscopy, left ear
dtcVideoOtoscopy_R	24	Video otoscopy, right ear
dtcDPIOC_L	25	Distortion Product Input-Output Curve, left ear
dtcDPIOC_R	26	Distortion Product Input-Output Curve, right ear
dtcOAEProbeFitting_L	27	OAE Probe Fitting, left ear
dtcOAEProbeFitting_R	28	OAE Probe Fitting, right ear
dtcOAEScreening_L	29	OAE Screening, left ear
dtcOAEScreening_R	30	OAE Screening, right ear
dtcOtherMeasurement_L	125	Other measurements, left ear
dtcOtherMeasurement_R	126	Other measurements, right ear
dtcHISelection_L	129	Hearing Instrument Selection, left ear
dtcHISelection_R	130	Hearing Instrument Selection, right ear
dtcHIFitting_L	131	Hearing Instrument Fitting, left ear
dtcHIFitting_R	132	Hearing Instrument Fitting, right ear
dtcRCSelection	133	Remote Control Selection
dtcHIInfo	135	Other Hearing Instrument information – both ears
dtcOtherFitting_L	136	Other fitting, left ear
dtcOtherFitting_R	137	Other fitting, right ear
dtcJournalEntry	256	Journal Entry
dtcOtherInfo	257	Other Information
dtcOrderForm	258	Order Form
dtcQuestionaireInfo	259	Questionaire Information
dtcFileAttachment	260	File Attachment
dtcEarscan_L	261	Earscan , left ear
dtcEarscan_R	262	Earscan , right ear
dtcReserved	512	Values up to 512 are reserved by HIMSA

Adding new constants

There are two situations where constants can be added to the System Database:

When HIMSA adds a new constant: When a company becomes a HIMSA licensee, HIMSA assigns the company a Manufacturer code.
When a HIMSA licensee submits a proposal for adding a constant in the System Database and the proposal is accepted: A licensee may wish to add a new data type constant that supports a new type of data format.