eXtremeDB for mission- and safety-critical applications

Operating Systems/Software Platforms
An operating system is responsible for managing the hardware resources of a computer and hosting applications that run on the computer. Real-time operating systems (RTOS) are designed to run critical applications reliably and with precise timing. In contrast, a general-purpose OS is designed to maintain user responsiveness with many programs and services running and to ensure "fairness"

Storage
eXtremeDB/rt data can be stored on different physical storage: main memory (RAM), non-volatile memory (NVRAM), solid-state drives (SSD), and hard-disk drives (HDD). Indicate which media are applicable to your applications. Select all that apply.

Data repositories
eXtremeDB/rt databases can be located on persistent or transient storage, which can be organized differently and have different capabilities. Which of the following storage capabilities will your applications utilize? Select all that apply.

Host application language API and the database access API conformance
The eXtremeDB/rt database runtime provides native APIs for many programming languages. Which of the following languages are relevant to you?  Please select all that apply.

Supported data types
What eXtremeDB native data types are applicable to your applications? Select all that apply.

Database Indexes
A database index is a data structure that improves the speed of data retrieval at the cost of additional writes and storage space to maintain it. What index types / algorithms are relevant to your applications? Select all that apply.

Database Transactions
A transaction is a unit of work with the database (a single logical operation on the data). Transactions ensure ACID (Atomicity, Consistency, Isolation and Durability) properties and provide scheduling policies for multiple tasks accessing the database simultaneously. eXtremeDB/rt supports four types of transaction scheduling policies: a policy that allows execution of a single transaction at a time (EXCLUSIVE), a single update transaction but multiple parallel read-only transactions (MURSIW), multiple parallel read-only and update transactions at a time (MVCC), and a time-cognizant (deterministic) transaction policy that guarantees that any transaction (either "read-only" or "update") is finalized within a given timeframe.

Database Backup and export/import capabilities
eXtremeDB/rt offers several backup options. Which of the following are relevant to your applications ?

Notification events
Notification events allow an application to be informed of various modifications to the database. eXtremeDB/rt database events can be handled synchronously or asynchronously by the application. Synchronous event handlers are called within the context of the same thread that caused the event, while asynchronous events are activated after the transaction commits.

Distributed architecture and Remote access features
How relevant for your applications are distributed database services? How relevant is the ability to access the embedded database remotely via integrated services ? Select all that apply.

Comments
We appreciate your insight on how embedded database management software can be made better. Please let us know if you have any additional comments or suggestions about possible improvements to McObject products.

Thank you
We appreciate your participation and invaluable feedback. The results of the survey will help guide our development effort and ensure that our future offerings reflect your projects' requirements. As a sign of our appreciation we can send you the summary of our study and offer you early access to the next release of our software.