Onyx is a web-based application that manages participant baseline interviews at assessment centres or clinics. As depicted in the figure below, an interview is represented as a set of interdependent stages that participants have to go through in order to complete their visit (consent form signature, health questionnaire, biosample collection, and so on). Onyx stores the data collected during the stages centrally and makes it available to all workstations.
Onyx controls both the order and availability of the interview stages (for example, no stages are available prior to the informed consent is signed) and captures many administrative parameters such as the starting and ending times of each stage. Onyx also manages a participant appointment list and reception of participants, as well as data filtering and encryption prior to export to a central study database (see Opal).
Onyx is designed to ensure that data is collected in an automated, efficient and secure way in order to minimize human errors and interview length. Onyx can optimize the workflow of your baseline interviews by:
Onyx is modular as shown in the figure below. The Onyx engine is a backbone to which independent data collection components can be connected in order to manage the various interview stages. Studies can configure Onyx for their own specific stages and data collection software.
Onyx consists of an application engine and a series of stage-specific data collection modules.
The Onyx engine supplies this main functionality:
The Onyx Consent Module collects the participant’s consent to partake in the assessment center interview. The module displays customizable consent forms onscreen.
The Consent Module's special features include:
Electronic signatures are embedded in the document making it impossible to modify the document once it has been signed. Signed consent forms are saved as PDF files.
The Onyx Questionnaire Module administers custom questionnaires to participants It displays questions on screen, and captures and validates answers.
The Questionnaire Module's advanced features include:
The questionnaire module supports two forms of survey administration: assisted (interviewer asks questions and enters participant's answers); and self-administered (participant answers the survey questions independently).
Both versions of the interface were developed in consultation with a professional software ergonomist ensuring that a variety of value-added features are available. For example, the nurse-assisted interface can take advantage of different question formats.
The self-administered interface takes into account the diverse needs of participants. It can be presented on a user-friendly touch screen that allows participants who have few or no computer skills, to navigate the questionnaire. A broad range of features has also been built in—from simple progress bars to accommodation for color blindness.
This rich set of features makes the Onyx Questionnaire Module an excellent questionnaire administration tool for different biobank studies.
Onyx’s Physical Measurement Module captures data from manual and electronic instruments used for physical measurements such as blood pressure, bone density, hip/waist circumference, and so on. This module prevents completion of a particular stage if there are any contraindications either in the contraindication questionnaire stage (previously administered using the questionnaire module) or immediately before the measurement. Interfaces are available to enter measurements made using manual instruments, or electronic data can be imported or exported between proprietary software and the database.
The Physical Measurement Module offers the following features:
Instrument calibration data and experimental conditions (such as room temperature and humidity) can be entered in logs configured to the study's requirements. This data can be exported along with participant data to ensure that all relevant information is available for future analysis.
The Physical Measurement Module can support any number of instruments. Below is a non exhaustive list of instrument's models that have already been implemented:
|Blood Pressure||VSM MedTech||BPM-200 or BPM-300|
|Spirometry||ndd Medical Technologies||Easy on-PC|
|Arterial stiffness||AtCor Medical||SphygmoCor SCOR-Px|
|Arterial stiffness||Summit Doppler||Vantage ABI|
|Osteodensity (ultrasound)||GE Healthcare||Lunar Achilles Express|
|Grip Strength||JTECH Medical||Tracker Freedom Grip|
Onyx's Sample Collection Module collects and validates the bar codes on sample tubes. Like the Physical Measurement Module, the Sample Collection Module monitors for contraindications to ensure that samples are not collected if contraindications exist.
The Sample Collection Module can be configured via a number of attributes including:
We've prepared a demo configuration of Onyx that allows you to try out some of the features. Keep in mind that most parts of Onyx are configurable, thus what you see in this demo can be completely different if required by your use-cases.
To have a closer look at Onyx try our demo site :